llvm/test/CodeGen/X86/memcmp-more-load-pairs-x32.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; NOTE: This is a copy of llvm/test/CodeGen/X86/memcmp.ll with more load pairs. Please keep it that way.
; RUN: llc -max-loads-per-memcmp=4 -memcmp-num-loads-per-block=4 < %s -mtriple=i686-unknown-unknown -mattr=cmov     | FileCheck %s --check-prefixes=X86,X86-NOSSE
; RUN: llc -max-loads-per-memcmp=4 -memcmp-num-loads-per-block=4 < %s -mtriple=i686-unknown-unknown -mattr=+sse     | FileCheck %s --check-prefixes=X86,X86-SSE1
; RUN: llc -max-loads-per-memcmp=4 -memcmp-num-loads-per-block=4 < %s -mtriple=i686-unknown-unknown -mattr=+sse2    | FileCheck %s --check-prefixes=X86,X86-SSE2
; RUN: llc -max-loads-per-memcmp=4 -memcmp-num-loads-per-block=4 < %s -mtriple=i686-unknown-unknown -mattr=+sse4.1  | FileCheck %s --check-prefixes=X86,X86-SSE41

; This tests codegen time inlining/optimization of memcmp
; rdar://6480398

@.str = private constant [513 x i8] c"01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901\00", align 1

declare dso_local i32 @memcmp(i8*, i8*, i32)

define i32 @length0(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length0:
; X86:       # %bb.0:
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    retl
   %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 0) nounwind
   ret i32 %m
 }

define i1 @length0_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length0_eq:
; X86:       # %bb.0:
; X86-NEXT:    movb $1, %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 0) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i1 @length0_lt(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length0_lt:
; X86:       # %bb.0:
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 0) nounwind
  %c = icmp slt i32 %m, 0
  ret i1 %c
}

define i32 @length2(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length2:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movzwl (%ecx), %ecx
; X86-NEXT:    movzwl (%eax), %edx
; X86-NEXT:    rolw $8, %cx
; X86-NEXT:    rolw $8, %dx
; X86-NEXT:    movzwl %cx, %eax
; X86-NEXT:    movzwl %dx, %ecx
; X86-NEXT:    subl %ecx, %eax
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 2) nounwind
  ret i32 %m
}

define i1 @length2_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length2_eq:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movzwl (%ecx), %ecx
; X86-NEXT:    cmpw (%eax), %cx
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 2) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i1 @length2_lt(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length2_lt:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movzwl (%ecx), %ecx
; X86-NEXT:    movzwl (%eax), %edx
; X86-NEXT:    rolw $8, %cx
; X86-NEXT:    rolw $8, %dx
; X86-NEXT:    movzwl %cx, %eax
; X86-NEXT:    movzwl %dx, %ecx
; X86-NEXT:    subl %ecx, %eax
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 2) nounwind
  %c = icmp slt i32 %m, 0
  ret i1 %c
}

define i1 @length2_gt(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length2_gt:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movzwl (%ecx), %ecx
; X86-NEXT:    movzwl (%eax), %eax
; X86-NEXT:    rolw $8, %cx
; X86-NEXT:    rolw $8, %ax
; X86-NEXT:    movzwl %cx, %ecx
; X86-NEXT:    movzwl %ax, %eax
; X86-NEXT:    subl %eax, %ecx
; X86-NEXT:    testl %ecx, %ecx
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 2) nounwind
  %c = icmp sgt i32 %m, 0
  ret i1 %c
}

define i1 @length2_eq_const(i8* %X) nounwind {
; X86-LABEL: length2_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movzwl (%eax), %eax
; X86-NEXT:    cmpl $12849, %eax # imm = 0x3231
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 1), i32 2) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i1 @length2_eq_nobuiltin_attr(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length2_eq_nobuiltin_attr:
; X86:       # %bb.0:
; X86-NEXT:    pushl $2
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 2) nounwind nobuiltin
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length3(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length3:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movzwl (%eax), %edx
; X86-NEXT:    movzwl (%ecx), %esi
; X86-NEXT:    rolw $8, %dx
; X86-NEXT:    rolw $8, %si
; X86-NEXT:    cmpw %si, %dx
; X86-NEXT:    jne .LBB9_3
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movzbl 2(%eax), %eax
; X86-NEXT:    movzbl 2(%ecx), %ecx
; X86-NEXT:    subl %ecx, %eax
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
; X86-NEXT:  .LBB9_3: # %res_block
; X86-NEXT:    setae %al
; X86-NEXT:    movzbl %al, %eax
; X86-NEXT:    leal -1(%eax,%eax), %eax
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 3) nounwind
  ret i32 %m
}

define i1 @length3_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length3_eq:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movzwl (%ecx), %edx
; X86-NEXT:    xorw (%eax), %dx
; X86-NEXT:    movb 2(%ecx), %cl
; X86-NEXT:    xorb 2(%eax), %cl
; X86-NEXT:    movzbl %cl, %eax
; X86-NEXT:    orw %dx, %ax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 3) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i32 @length4(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length4:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %ecx
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    seta %al
; X86-NEXT:    sbbl $0, %eax
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 4) nounwind
  ret i32 %m
}

define i1 @length4_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length4_eq:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %ecx
; X86-NEXT:    cmpl (%eax), %ecx
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 4) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i1 @length4_lt(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length4_lt:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %ecx
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    seta %al
; X86-NEXT:    sbbl $0, %eax
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 4) nounwind
  %c = icmp slt i32 %m, 0
  ret i1 %c
}

define i1 @length4_gt(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length4_gt:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %ecx
; X86-NEXT:    movl (%eax), %eax
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %eax
; X86-NEXT:    xorl %edx, %edx
; X86-NEXT:    cmpl %eax, %ecx
; X86-NEXT:    seta %dl
; X86-NEXT:    sbbl $0, %edx
; X86-NEXT:    testl %edx, %edx
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 4) nounwind
  %c = icmp sgt i32 %m, 0
  ret i1 %c
}

define i1 @length4_eq_const(i8* %X) nounwind {
; X86-LABEL: length4_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    cmpl $875770417, (%eax) # imm = 0x34333231
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 1), i32 4) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length5(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length5:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    movl (%ecx), %esi
; X86-NEXT:    bswapl %edx
; X86-NEXT:    bswapl %esi
; X86-NEXT:    cmpl %esi, %edx
; X86-NEXT:    jne .LBB16_3
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movzbl 4(%eax), %eax
; X86-NEXT:    movzbl 4(%ecx), %ecx
; X86-NEXT:    subl %ecx, %eax
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
; X86-NEXT:  .LBB16_3: # %res_block
; X86-NEXT:    setae %al
; X86-NEXT:    movzbl %al, %eax
; X86-NEXT:    leal -1(%eax,%eax), %eax
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 5) nounwind
  ret i32 %m
}

define i1 @length5_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length5_eq:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %edx
; X86-NEXT:    xorl (%eax), %edx
; X86-NEXT:    movb 4(%ecx), %cl
; X86-NEXT:    xorb 4(%eax), %cl
; X86-NEXT:    movzbl %cl, %eax
; X86-NEXT:    orl %edx, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 5) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i1 @length5_lt(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length5_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    movl (%ecx), %esi
; X86-NEXT:    bswapl %edx
; X86-NEXT:    bswapl %esi
; X86-NEXT:    cmpl %esi, %edx
; X86-NEXT:    jne .LBB18_3
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movzbl 4(%eax), %eax
; X86-NEXT:    movzbl 4(%ecx), %ecx
; X86-NEXT:    subl %ecx, %eax
; X86-NEXT:    jmp .LBB18_2
; X86-NEXT:  .LBB18_3: # %res_block
; X86-NEXT:    setae %al
; X86-NEXT:    movzbl %al, %eax
; X86-NEXT:    leal -1(%eax,%eax), %eax
; X86-NEXT:  .LBB18_2: # %endblock
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 5) nounwind
  %c = icmp slt i32 %m, 0
  ret i1 %c
}

define i32 @length7(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length7:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %esi
; X86-NEXT:    movl (%esi), %ecx
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB19_2
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movl 3(%esi), %ecx
; X86-NEXT:    movl 3(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    je .LBB19_3
; X86-NEXT:  .LBB19_2: # %res_block
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    setae %al
; X86-NEXT:    leal -1(%eax,%eax), %eax
; X86-NEXT:  .LBB19_3: # %endblock
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 7) nounwind
  ret i32 %m
}

define i1 @length7_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length7_eq:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %edx
; X86-NEXT:    movl 3(%ecx), %ecx
; X86-NEXT:    xorl (%eax), %edx
; X86-NEXT:    xorl 3(%eax), %ecx
; X86-NEXT:    orl %edx, %ecx
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 7) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i1 @length7_lt(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length7_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %esi
; X86-NEXT:    movl (%esi), %ecx
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB21_2
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movl 3(%esi), %ecx
; X86-NEXT:    movl 3(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    je .LBB21_3
; X86-NEXT:  .LBB21_2: # %res_block
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    setae %al
; X86-NEXT:    leal -1(%eax,%eax), %eax
; X86-NEXT:  .LBB21_3: # %endblock
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 7) nounwind
  %c = icmp slt i32 %m, 0
  ret i1 %c
}

define i32 @length8(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length8:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %esi
; X86-NEXT:    movl (%esi), %ecx
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB22_2
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movl 4(%esi), %ecx
; X86-NEXT:    movl 4(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    je .LBB22_3
; X86-NEXT:  .LBB22_2: # %res_block
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    setae %al
; X86-NEXT:    leal -1(%eax,%eax), %eax
; X86-NEXT:  .LBB22_3: # %endblock
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 8) nounwind
  ret i32 %m
}

define i1 @length8_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length8_eq:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %edx
; X86-NEXT:    movl 4(%ecx), %ecx
; X86-NEXT:    xorl (%eax), %edx
; X86-NEXT:    xorl 4(%eax), %ecx
; X86-NEXT:    orl %edx, %ecx
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 8) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i1 @length8_eq_const(i8* %X) nounwind {
; X86-LABEL: length8_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl $858927408, %ecx # imm = 0x33323130
; X86-NEXT:    xorl (%eax), %ecx
; X86-NEXT:    movl $926299444, %edx # imm = 0x37363534
; X86-NEXT:    xorl 4(%eax), %edx
; X86-NEXT:    orl %ecx, %edx
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 8) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i1 @length9_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length9_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %edx
; X86-NEXT:    movl 4(%ecx), %esi
; X86-NEXT:    xorl (%eax), %edx
; X86-NEXT:    xorl 4(%eax), %esi
; X86-NEXT:    orl %edx, %esi
; X86-NEXT:    movb 8(%ecx), %cl
; X86-NEXT:    xorb 8(%eax), %cl
; X86-NEXT:    movzbl %cl, %eax
; X86-NEXT:    orl %esi, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 9) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i1 @length10_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length10_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %edx
; X86-NEXT:    movl 4(%ecx), %esi
; X86-NEXT:    xorl (%eax), %edx
; X86-NEXT:    xorl 4(%eax), %esi
; X86-NEXT:    orl %edx, %esi
; X86-NEXT:    movzwl 8(%ecx), %ecx
; X86-NEXT:    xorw 8(%eax), %cx
; X86-NEXT:    movzwl %cx, %eax
; X86-NEXT:    orl %esi, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 10) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i1 @length11_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length11_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %edx
; X86-NEXT:    movl 4(%ecx), %esi
; X86-NEXT:    xorl (%eax), %edx
; X86-NEXT:    xorl 4(%eax), %esi
; X86-NEXT:    orl %edx, %esi
; X86-NEXT:    movl 7(%ecx), %ecx
; X86-NEXT:    xorl 7(%eax), %ecx
; X86-NEXT:    orl %esi, %ecx
; X86-NEXT:    sete %al
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 11) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i1 @length12_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length12_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %edx
; X86-NEXT:    movl 4(%ecx), %esi
; X86-NEXT:    xorl (%eax), %edx
; X86-NEXT:    xorl 4(%eax), %esi
; X86-NEXT:    orl %edx, %esi
; X86-NEXT:    movl 8(%ecx), %ecx
; X86-NEXT:    xorl 8(%eax), %ecx
; X86-NEXT:    orl %esi, %ecx
; X86-NEXT:    setne %al
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 12) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i32 @length12(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length12:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %esi
; X86-NEXT:    movl (%esi), %ecx
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB29_3
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movl 4(%esi), %ecx
; X86-NEXT:    movl 4(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB29_3
; X86-NEXT:  # %bb.2: # %loadbb2
; X86-NEXT:    movl 8(%esi), %ecx
; X86-NEXT:    movl 8(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    je .LBB29_4
; X86-NEXT:  .LBB29_3: # %res_block
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    setae %al
; X86-NEXT:    leal -1(%eax,%eax), %eax
; X86-NEXT:  .LBB29_4: # %endblock
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 12) nounwind
  ret i32 %m
}

define i1 @length13_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length13_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
; X86-NEXT:    movl (%edx), %esi
; X86-NEXT:    movl 4(%edx), %eax
; X86-NEXT:    xorl (%ecx), %esi
; X86-NEXT:    xorl 4(%ecx), %eax
; X86-NEXT:    orl %esi, %eax
; X86-NEXT:    movl 8(%edx), %esi
; X86-NEXT:    xorl 8(%ecx), %esi
; X86-NEXT:    movb 12(%edx), %dl
; X86-NEXT:    xorb 12(%ecx), %dl
; X86-NEXT:    movzbl %dl, %ecx
; X86-NEXT:    orl %esi, %ecx
; X86-NEXT:    orl %eax, %ecx
; X86-NEXT:    sete %al
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 13) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i1 @length14_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length14_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
; X86-NEXT:    movl (%edx), %esi
; X86-NEXT:    movl 4(%edx), %eax
; X86-NEXT:    xorl (%ecx), %esi
; X86-NEXT:    xorl 4(%ecx), %eax
; X86-NEXT:    orl %esi, %eax
; X86-NEXT:    movl 8(%edx), %esi
; X86-NEXT:    xorl 8(%ecx), %esi
; X86-NEXT:    movzwl 12(%edx), %edx
; X86-NEXT:    xorw 12(%ecx), %dx
; X86-NEXT:    movzwl %dx, %ecx
; X86-NEXT:    orl %esi, %ecx
; X86-NEXT:    orl %eax, %ecx
; X86-NEXT:    sete %al
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 14) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i1 @length15_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length15_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
; X86-NEXT:    movl (%edx), %esi
; X86-NEXT:    movl 4(%edx), %eax
; X86-NEXT:    xorl (%ecx), %esi
; X86-NEXT:    xorl 4(%ecx), %eax
; X86-NEXT:    orl %esi, %eax
; X86-NEXT:    movl 8(%edx), %esi
; X86-NEXT:    xorl 8(%ecx), %esi
; X86-NEXT:    movl 11(%edx), %edx
; X86-NEXT:    xorl 11(%ecx), %edx
; X86-NEXT:    orl %esi, %edx
; X86-NEXT:    orl %eax, %edx
; X86-NEXT:    sete %al
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 15) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

; PR33329 - https://bugs.llvm.org/show_bug.cgi?id=33329

define i32 @length16(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length16:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %esi
; X86-NEXT:    movl (%esi), %ecx
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB33_4
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movl 4(%esi), %ecx
; X86-NEXT:    movl 4(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB33_4
; X86-NEXT:  # %bb.2: # %loadbb2
; X86-NEXT:    movl 8(%esi), %ecx
; X86-NEXT:    movl 8(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB33_4
; X86-NEXT:  # %bb.3: # %loadbb3
; X86-NEXT:    movl 12(%esi), %ecx
; X86-NEXT:    movl 12(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    je .LBB33_5
; X86-NEXT:  .LBB33_4: # %res_block
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    setae %al
; X86-NEXT:    leal -1(%eax,%eax), %eax
; X86-NEXT:  .LBB33_5: # %endblock
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 16) nounwind
  ret i32 %m
}

define i1 @length16_eq(i8* %x, i8* %y) nounwind {
; X86-NOSSE-LABEL: length16_eq:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl %esi
; X86-NOSSE-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NOSSE-NEXT:    movl {{[0-9]+}}(%esp), %edx
; X86-NOSSE-NEXT:    movl (%edx), %esi
; X86-NOSSE-NEXT:    movl 4(%edx), %eax
; X86-NOSSE-NEXT:    xorl (%ecx), %esi
; X86-NOSSE-NEXT:    xorl 4(%ecx), %eax
; X86-NOSSE-NEXT:    orl %esi, %eax
; X86-NOSSE-NEXT:    movl 8(%edx), %esi
; X86-NOSSE-NEXT:    xorl 8(%ecx), %esi
; X86-NOSSE-NEXT:    movl 12(%edx), %edx
; X86-NOSSE-NEXT:    xorl 12(%ecx), %edx
; X86-NOSSE-NEXT:    orl %esi, %edx
; X86-NOSSE-NEXT:    orl %eax, %edx
; X86-NOSSE-NEXT:    setne %al
; X86-NOSSE-NEXT:    popl %esi
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length16_eq:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl %esi
; X86-SSE1-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE1-NEXT:    movl {{[0-9]+}}(%esp), %edx
; X86-SSE1-NEXT:    movl (%edx), %esi
; X86-SSE1-NEXT:    movl 4(%edx), %eax
; X86-SSE1-NEXT:    xorl (%ecx), %esi
; X86-SSE1-NEXT:    xorl 4(%ecx), %eax
; X86-SSE1-NEXT:    orl %esi, %eax
; X86-SSE1-NEXT:    movl 8(%edx), %esi
; X86-SSE1-NEXT:    xorl 8(%ecx), %esi
; X86-SSE1-NEXT:    movl 12(%edx), %edx
; X86-SSE1-NEXT:    xorl 12(%ecx), %edx
; X86-SSE1-NEXT:    orl %esi, %edx
; X86-SSE1-NEXT:    orl %eax, %edx
; X86-SSE1-NEXT:    setne %al
; X86-SSE1-NEXT:    popl %esi
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length16_eq:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE2-NEXT:    movdqu (%eax), %xmm1
; X86-SSE2-NEXT:    pcmpeqb %xmm0, %xmm1
; X86-SSE2-NEXT:    pmovmskb %xmm1, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    setne %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length16_eq:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE41-NEXT:    movdqu (%eax), %xmm1
; X86-SSE41-NEXT:    pxor %xmm0, %xmm1
; X86-SSE41-NEXT:    ptest %xmm1, %xmm1
; X86-SSE41-NEXT:    setne %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 16) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length16_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length16_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %esi
; X86-NEXT:    movl (%esi), %ecx
; X86-NEXT:    movl (%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB35_4
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movl 4(%esi), %ecx
; X86-NEXT:    movl 4(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB35_4
; X86-NEXT:  # %bb.2: # %loadbb2
; X86-NEXT:    movl 8(%esi), %ecx
; X86-NEXT:    movl 8(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    jne .LBB35_4
; X86-NEXT:  # %bb.3: # %loadbb3
; X86-NEXT:    movl 12(%esi), %ecx
; X86-NEXT:    movl 12(%eax), %edx
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    bswapl %edx
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    je .LBB35_5
; X86-NEXT:  .LBB35_4: # %res_block
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    cmpl %edx, %ecx
; X86-NEXT:    setae %al
; X86-NEXT:    leal -1(%eax,%eax), %eax
; X86-NEXT:  .LBB35_5: # %endblock
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 16) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length16_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length16_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %esi
; X86-NEXT:    movl (%esi), %eax
; X86-NEXT:    movl (%edx), %ecx
; X86-NEXT:    bswapl %eax
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    cmpl %ecx, %eax
; X86-NEXT:    jne .LBB36_4
; X86-NEXT:  # %bb.1: # %loadbb1
; X86-NEXT:    movl 4(%esi), %eax
; X86-NEXT:    movl 4(%edx), %ecx
; X86-NEXT:    bswapl %eax
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    cmpl %ecx, %eax
; X86-NEXT:    jne .LBB36_4
; X86-NEXT:  # %bb.2: # %loadbb2
; X86-NEXT:    movl 8(%esi), %eax
; X86-NEXT:    movl 8(%edx), %ecx
; X86-NEXT:    bswapl %eax
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    cmpl %ecx, %eax
; X86-NEXT:    jne .LBB36_4
; X86-NEXT:  # %bb.3: # %loadbb3
; X86-NEXT:    movl 12(%esi), %eax
; X86-NEXT:    movl 12(%edx), %ecx
; X86-NEXT:    bswapl %eax
; X86-NEXT:    bswapl %ecx
; X86-NEXT:    xorl %edx, %edx
; X86-NEXT:    cmpl %ecx, %eax
; X86-NEXT:    je .LBB36_5
; X86-NEXT:  .LBB36_4: # %res_block
; X86-NEXT:    xorl %edx, %edx
; X86-NEXT:    cmpl %ecx, %eax
; X86-NEXT:    setae %dl
; X86-NEXT:    leal -1(%edx,%edx), %edx
; X86-NEXT:  .LBB36_5: # %endblock
; X86-NEXT:    testl %edx, %edx
; X86-NEXT:    setg %al
; X86-NEXT:    popl %esi
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 16) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length16_eq_const(i8* %X) nounwind {
; X86-NOSSE-LABEL: length16_eq_const:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl %esi
; X86-NOSSE-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NOSSE-NEXT:    movl $858927408, %ecx # imm = 0x33323130
; X86-NOSSE-NEXT:    xorl (%eax), %ecx
; X86-NOSSE-NEXT:    movl $926299444, %edx # imm = 0x37363534
; X86-NOSSE-NEXT:    xorl 4(%eax), %edx
; X86-NOSSE-NEXT:    orl %ecx, %edx
; X86-NOSSE-NEXT:    movl $825243960, %ecx # imm = 0x31303938
; X86-NOSSE-NEXT:    xorl 8(%eax), %ecx
; X86-NOSSE-NEXT:    movl $892613426, %esi # imm = 0x35343332
; X86-NOSSE-NEXT:    xorl 12(%eax), %esi
; X86-NOSSE-NEXT:    orl %ecx, %esi
; X86-NOSSE-NEXT:    orl %edx, %esi
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    popl %esi
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length16_eq_const:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl %esi
; X86-SSE1-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE1-NEXT:    movl $858927408, %ecx # imm = 0x33323130
; X86-SSE1-NEXT:    xorl (%eax), %ecx
; X86-SSE1-NEXT:    movl $926299444, %edx # imm = 0x37363534
; X86-SSE1-NEXT:    xorl 4(%eax), %edx
; X86-SSE1-NEXT:    orl %ecx, %edx
; X86-SSE1-NEXT:    movl $825243960, %ecx # imm = 0x31303938
; X86-SSE1-NEXT:    xorl 8(%eax), %ecx
; X86-SSE1-NEXT:    movl $892613426, %esi # imm = 0x35343332
; X86-SSE1-NEXT:    xorl 12(%eax), %esi
; X86-SSE1-NEXT:    orl %ecx, %esi
; X86-SSE1-NEXT:    orl %edx, %esi
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    popl %esi
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length16_eq_const:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movdqu (%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length16_eq_const:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movdqu (%eax), %xmm0
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 16) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

; PR33914 - https://bugs.llvm.org/show_bug.cgi?id=33914

define i32 @length24(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length24:
; X86:       # %bb.0:
; X86-NEXT:    pushl $24
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 24) nounwind
  ret i32 %m
}

define i1 @length24_eq(i8* %x, i8* %y) nounwind {
; X86-NOSSE-LABEL: length24_eq:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $24
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length24_eq:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $24
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length24_eq:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE2-NEXT:    movdqu 8(%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu (%eax), %xmm2
; X86-SSE2-NEXT:    pcmpeqb %xmm0, %xmm2
; X86-SSE2-NEXT:    movdqu 8(%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; X86-SSE2-NEXT:    pand %xmm2, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length24_eq:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE41-NEXT:    movdqu 8(%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu (%eax), %xmm2
; X86-SSE41-NEXT:    pxor %xmm0, %xmm2
; X86-SSE41-NEXT:    movdqu 8(%eax), %xmm0
; X86-SSE41-NEXT:    pxor %xmm1, %xmm0
; X86-SSE41-NEXT:    por %xmm2, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 24) nounwind
  %cmp = icmp eq i32 %call, 0
  ret i1 %cmp
}

define i1 @length24_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length24_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $24
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 24) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length24_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length24_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $24
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 24) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length24_eq_const(i8* %X) nounwind {
; X86-NOSSE-LABEL: length24_eq_const:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $24
; X86-NOSSE-NEXT:    pushl $.L.str
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    setne %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length24_eq_const:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $24
; X86-SSE1-NEXT:    pushl $.L.str
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    setne %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length24_eq_const:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movdqu (%eax), %xmm0
; X86-SSE2-NEXT:    movdqu 8(%eax), %xmm1
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE2-NEXT:    pand %xmm1, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    setne %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length24_eq_const:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movdqu (%eax), %xmm0
; X86-SSE41-NEXT:    movdqu 8(%eax), %xmm1
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE41-NEXT:    por %xmm1, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    setne %al
; X86-SSE41-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 24) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i32 @length31(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length31:
; X86:       # %bb.0:
; X86-NEXT:    pushl $31
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 31) nounwind
  ret i32 %m
}

define i1 @length31_eq(i8* %x, i8* %y) nounwind {
; X86-NOSSE-LABEL: length31_eq:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $31
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length31_eq:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $31
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length31_eq:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE2-NEXT:    movdqu 15(%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu (%eax), %xmm2
; X86-SSE2-NEXT:    pcmpeqb %xmm0, %xmm2
; X86-SSE2-NEXT:    movdqu 15(%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; X86-SSE2-NEXT:    pand %xmm2, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length31_eq:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE41-NEXT:    movdqu 15(%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu (%eax), %xmm2
; X86-SSE41-NEXT:    pxor %xmm0, %xmm2
; X86-SSE41-NEXT:    movdqu 15(%eax), %xmm0
; X86-SSE41-NEXT:    pxor %xmm1, %xmm0
; X86-SSE41-NEXT:    por %xmm2, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 31) nounwind
  %cmp = icmp eq i32 %call, 0
  ret i1 %cmp
}

define i1 @length31_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length31_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $31
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 31) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length31_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length31_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $31
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 31) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length31_eq_prefer128(i8* %x, i8* %y) nounwind "prefer-vector-width"="128" {
; X86-NOSSE-LABEL: length31_eq_prefer128:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $31
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length31_eq_prefer128:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $31
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length31_eq_prefer128:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE2-NEXT:    movdqu 15(%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu (%eax), %xmm2
; X86-SSE2-NEXT:    pcmpeqb %xmm0, %xmm2
; X86-SSE2-NEXT:    movdqu 15(%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; X86-SSE2-NEXT:    pand %xmm2, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length31_eq_prefer128:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE41-NEXT:    movdqu 15(%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu (%eax), %xmm2
; X86-SSE41-NEXT:    pxor %xmm0, %xmm2
; X86-SSE41-NEXT:    movdqu 15(%eax), %xmm0
; X86-SSE41-NEXT:    pxor %xmm1, %xmm0
; X86-SSE41-NEXT:    por %xmm2, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 31) nounwind
  %cmp = icmp eq i32 %call, 0
  ret i1 %cmp
}

define i1 @length31_eq_const(i8* %X) nounwind {
; X86-NOSSE-LABEL: length31_eq_const:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $31
; X86-NOSSE-NEXT:    pushl $.L.str
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    setne %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length31_eq_const:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $31
; X86-SSE1-NEXT:    pushl $.L.str
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    setne %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length31_eq_const:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movdqu (%eax), %xmm0
; X86-SSE2-NEXT:    movdqu 15(%eax), %xmm1
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE2-NEXT:    pand %xmm1, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    setne %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length31_eq_const:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movdqu (%eax), %xmm0
; X86-SSE41-NEXT:    movdqu 15(%eax), %xmm1
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE41-NEXT:    por %xmm1, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    setne %al
; X86-SSE41-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 31) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i32 @length32(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length32:
; X86:       # %bb.0:
; X86-NEXT:    pushl $32
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 32) nounwind
  ret i32 %m
}

; PR33325 - https://bugs.llvm.org/show_bug.cgi?id=33325

define i1 @length32_eq(i8* %x, i8* %y) nounwind {
; X86-NOSSE-LABEL: length32_eq:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $32
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length32_eq:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $32
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length32_eq:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE2-NEXT:    movdqu 16(%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu (%eax), %xmm2
; X86-SSE2-NEXT:    pcmpeqb %xmm0, %xmm2
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; X86-SSE2-NEXT:    pand %xmm2, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length32_eq:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE41-NEXT:    movdqu 16(%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu (%eax), %xmm2
; X86-SSE41-NEXT:    pxor %xmm0, %xmm2
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm0
; X86-SSE41-NEXT:    pxor %xmm1, %xmm0
; X86-SSE41-NEXT:    por %xmm2, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 32) nounwind
  %cmp = icmp eq i32 %call, 0
  ret i1 %cmp
}

define i1 @length32_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length32_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $32
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 32) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length32_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length32_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $32
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 32) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length32_eq_prefer128(i8* %x, i8* %y) nounwind "prefer-vector-width"="128" {
; X86-NOSSE-LABEL: length32_eq_prefer128:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $32
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length32_eq_prefer128:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $32
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length32_eq_prefer128:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE2-NEXT:    movdqu 16(%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu (%eax), %xmm2
; X86-SSE2-NEXT:    pcmpeqb %xmm0, %xmm2
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; X86-SSE2-NEXT:    pand %xmm2, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length32_eq_prefer128:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE41-NEXT:    movdqu 16(%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu (%eax), %xmm2
; X86-SSE41-NEXT:    pxor %xmm0, %xmm2
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm0
; X86-SSE41-NEXT:    pxor %xmm1, %xmm0
; X86-SSE41-NEXT:    por %xmm2, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 32) nounwind
  %cmp = icmp eq i32 %call, 0
  ret i1 %cmp
}

define i1 @length32_eq_const(i8* %X) nounwind {
; X86-NOSSE-LABEL: length32_eq_const:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $32
; X86-NOSSE-NEXT:    pushl $.L.str
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    setne %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length32_eq_const:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $32
; X86-SSE1-NEXT:    pushl $.L.str
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    setne %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length32_eq_const:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movdqu (%eax), %xmm0
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE2-NEXT:    pand %xmm1, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    setne %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length32_eq_const:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movdqu (%eax), %xmm0
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE41-NEXT:    por %xmm1, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    setne %al
; X86-SSE41-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 32) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i32 @length48(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length48:
; X86:       # %bb.0:
; X86-NEXT:    pushl $48
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 48) nounwind
  ret i32 %m
}

define i1 @length48_eq(i8* %x, i8* %y) nounwind {
; X86-NOSSE-LABEL: length48_eq:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $48
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length48_eq:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $48
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length48_eq:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE2-NEXT:    movdqu 16(%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu (%eax), %xmm2
; X86-SSE2-NEXT:    pcmpeqb %xmm0, %xmm2
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; X86-SSE2-NEXT:    movdqu 32(%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu 32(%eax), %xmm3
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm3
; X86-SSE2-NEXT:    pand %xmm0, %xmm3
; X86-SSE2-NEXT:    pand %xmm2, %xmm3
; X86-SSE2-NEXT:    pmovmskb %xmm3, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length48_eq:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE41-NEXT:    movdqu 16(%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu (%eax), %xmm2
; X86-SSE41-NEXT:    pxor %xmm0, %xmm2
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm0
; X86-SSE41-NEXT:    pxor %xmm1, %xmm0
; X86-SSE41-NEXT:    movdqu 32(%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu 32(%eax), %xmm3
; X86-SSE41-NEXT:    pxor %xmm1, %xmm3
; X86-SSE41-NEXT:    por %xmm0, %xmm3
; X86-SSE41-NEXT:    por %xmm2, %xmm3
; X86-SSE41-NEXT:    ptest %xmm3, %xmm3
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 48) nounwind
  %cmp = icmp eq i32 %call, 0
  ret i1 %cmp
}

define i1 @length48_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length48_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $48
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 48) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length48_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length48_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $48
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 48) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length48_eq_prefer128(i8* %x, i8* %y) nounwind "prefer-vector-width"="128" {
; X86-NOSSE-LABEL: length48_eq_prefer128:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $48
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length48_eq_prefer128:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $48
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length48_eq_prefer128:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE2-NEXT:    movdqu 16(%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu (%eax), %xmm2
; X86-SSE2-NEXT:    pcmpeqb %xmm0, %xmm2
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; X86-SSE2-NEXT:    movdqu 32(%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu 32(%eax), %xmm3
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm3
; X86-SSE2-NEXT:    pand %xmm0, %xmm3
; X86-SSE2-NEXT:    pand %xmm2, %xmm3
; X86-SSE2-NEXT:    pmovmskb %xmm3, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length48_eq_prefer128:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm0
; X86-SSE41-NEXT:    movdqu 16(%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu (%eax), %xmm2
; X86-SSE41-NEXT:    pxor %xmm0, %xmm2
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm0
; X86-SSE41-NEXT:    pxor %xmm1, %xmm0
; X86-SSE41-NEXT:    movdqu 32(%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu 32(%eax), %xmm3
; X86-SSE41-NEXT:    pxor %xmm1, %xmm3
; X86-SSE41-NEXT:    por %xmm0, %xmm3
; X86-SSE41-NEXT:    por %xmm2, %xmm3
; X86-SSE41-NEXT:    ptest %xmm3, %xmm3
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 48) nounwind
  %cmp = icmp eq i32 %call, 0
  ret i1 %cmp
}

define i1 @length48_eq_const(i8* %X) nounwind {
; X86-NOSSE-LABEL: length48_eq_const:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $48
; X86-NOSSE-NEXT:    pushl $.L.str
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    setne %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length48_eq_const:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $48
; X86-SSE1-NEXT:    pushl $.L.str
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    setne %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length48_eq_const:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movdqu (%eax), %xmm0
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE2-NEXT:    movdqu 32(%eax), %xmm2
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm2
; X86-SSE2-NEXT:    pand %xmm1, %xmm2
; X86-SSE2-NEXT:    pand %xmm0, %xmm2
; X86-SSE2-NEXT:    pmovmskb %xmm2, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    setne %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length48_eq_const:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movdqu (%eax), %xmm0
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE41-NEXT:    movdqu 32(%eax), %xmm2
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm2
; X86-SSE41-NEXT:    por %xmm1, %xmm2
; X86-SSE41-NEXT:    por %xmm0, %xmm2
; X86-SSE41-NEXT:    ptest %xmm2, %xmm2
; X86-SSE41-NEXT:    setne %al
; X86-SSE41-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 48) nounwind
  %c = icmp ne i32 %m, 0
  ret i1 %c
}

define i32 @length63(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length63:
; X86:       # %bb.0:
; X86-NEXT:    pushl $63
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 63) nounwind
  ret i32 %m
}

define i1 @length63_eq(i8* %x, i8* %y) nounwind {
; X86-NOSSE-LABEL: length63_eq:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $63
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    setne %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length63_eq:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $63
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    setne %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length63_eq:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu 16(%ecx), %xmm2
; X86-SSE2-NEXT:    movdqu (%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE2-NEXT:    pcmpeqb %xmm2, %xmm1
; X86-SSE2-NEXT:    movdqu 32(%ecx), %xmm2
; X86-SSE2-NEXT:    movdqu 32(%eax), %xmm3
; X86-SSE2-NEXT:    pcmpeqb %xmm2, %xmm3
; X86-SSE2-NEXT:    movdqu 47(%ecx), %xmm2
; X86-SSE2-NEXT:    movdqu 47(%eax), %xmm4
; X86-SSE2-NEXT:    pcmpeqb %xmm2, %xmm4
; X86-SSE2-NEXT:    pand %xmm3, %xmm4
; X86-SSE2-NEXT:    pand %xmm1, %xmm4
; X86-SSE2-NEXT:    pand %xmm0, %xmm4
; X86-SSE2-NEXT:    pmovmskb %xmm4, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    setne %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length63_eq:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu 16(%ecx), %xmm2
; X86-SSE41-NEXT:    movdqu (%eax), %xmm0
; X86-SSE41-NEXT:    pxor %xmm1, %xmm0
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE41-NEXT:    pxor %xmm2, %xmm1
; X86-SSE41-NEXT:    movdqu 32(%ecx), %xmm2
; X86-SSE41-NEXT:    movdqu 32(%eax), %xmm3
; X86-SSE41-NEXT:    pxor %xmm2, %xmm3
; X86-SSE41-NEXT:    movdqu 47(%ecx), %xmm2
; X86-SSE41-NEXT:    movdqu 47(%eax), %xmm4
; X86-SSE41-NEXT:    pxor %xmm2, %xmm4
; X86-SSE41-NEXT:    por %xmm3, %xmm4
; X86-SSE41-NEXT:    por %xmm1, %xmm4
; X86-SSE41-NEXT:    por %xmm0, %xmm4
; X86-SSE41-NEXT:    ptest %xmm4, %xmm4
; X86-SSE41-NEXT:    setne %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 63) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length63_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length63_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $63
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 63) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length63_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length63_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $63
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 63) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length63_eq_const(i8* %X) nounwind {
; X86-NOSSE-LABEL: length63_eq_const:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $63
; X86-NOSSE-NEXT:    pushl $.L.str
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length63_eq_const:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $63
; X86-SSE1-NEXT:    pushl $.L.str
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length63_eq_const:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movdqu (%eax), %xmm0
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE2-NEXT:    movdqu 32(%eax), %xmm2
; X86-SSE2-NEXT:    movdqu 47(%eax), %xmm3
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm3
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm2
; X86-SSE2-NEXT:    pand %xmm3, %xmm2
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE2-NEXT:    pand %xmm2, %xmm1
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE2-NEXT:    pand %xmm1, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length63_eq_const:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movdqu (%eax), %xmm0
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE41-NEXT:    movdqu 32(%eax), %xmm2
; X86-SSE41-NEXT:    movdqu 47(%eax), %xmm3
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm3
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm2
; X86-SSE41-NEXT:    por %xmm3, %xmm2
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE41-NEXT:    por %xmm2, %xmm1
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE41-NEXT:    por %xmm1, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 63) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length64(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length64:
; X86:       # %bb.0:
; X86-NEXT:    pushl $64
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 64) nounwind
  ret i32 %m
}

define i1 @length64_eq(i8* %x, i8* %y) nounwind {
; X86-NOSSE-LABEL: length64_eq:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $64
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    setne %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length64_eq:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $64
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    setne %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length64_eq:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE2-NEXT:    movdqu (%ecx), %xmm1
; X86-SSE2-NEXT:    movdqu 16(%ecx), %xmm2
; X86-SSE2-NEXT:    movdqu (%eax), %xmm0
; X86-SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE2-NEXT:    pcmpeqb %xmm2, %xmm1
; X86-SSE2-NEXT:    movdqu 32(%ecx), %xmm2
; X86-SSE2-NEXT:    movdqu 32(%eax), %xmm3
; X86-SSE2-NEXT:    pcmpeqb %xmm2, %xmm3
; X86-SSE2-NEXT:    movdqu 48(%ecx), %xmm2
; X86-SSE2-NEXT:    movdqu 48(%eax), %xmm4
; X86-SSE2-NEXT:    pcmpeqb %xmm2, %xmm4
; X86-SSE2-NEXT:    pand %xmm3, %xmm4
; X86-SSE2-NEXT:    pand %xmm1, %xmm4
; X86-SSE2-NEXT:    pand %xmm0, %xmm4
; X86-SSE2-NEXT:    pmovmskb %xmm4, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    setne %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length64_eq:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-SSE41-NEXT:    movdqu (%ecx), %xmm1
; X86-SSE41-NEXT:    movdqu 16(%ecx), %xmm2
; X86-SSE41-NEXT:    movdqu (%eax), %xmm0
; X86-SSE41-NEXT:    pxor %xmm1, %xmm0
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE41-NEXT:    pxor %xmm2, %xmm1
; X86-SSE41-NEXT:    movdqu 32(%ecx), %xmm2
; X86-SSE41-NEXT:    movdqu 32(%eax), %xmm3
; X86-SSE41-NEXT:    pxor %xmm2, %xmm3
; X86-SSE41-NEXT:    movdqu 48(%ecx), %xmm2
; X86-SSE41-NEXT:    movdqu 48(%eax), %xmm4
; X86-SSE41-NEXT:    pxor %xmm2, %xmm4
; X86-SSE41-NEXT:    por %xmm3, %xmm4
; X86-SSE41-NEXT:    por %xmm1, %xmm4
; X86-SSE41-NEXT:    por %xmm0, %xmm4
; X86-SSE41-NEXT:    ptest %xmm4, %xmm4
; X86-SSE41-NEXT:    setne %al
; X86-SSE41-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 64) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length64_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length64_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $64
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 64) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length64_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length64_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $64
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 64) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length64_eq_const(i8* %X) nounwind {
; X86-NOSSE-LABEL: length64_eq_const:
; X86-NOSSE:       # %bb.0:
; X86-NOSSE-NEXT:    pushl $64
; X86-NOSSE-NEXT:    pushl $.L.str
; X86-NOSSE-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT:    calll memcmp
; X86-NOSSE-NEXT:    addl $12, %esp
; X86-NOSSE-NEXT:    testl %eax, %eax
; X86-NOSSE-NEXT:    sete %al
; X86-NOSSE-NEXT:    retl
;
; X86-SSE1-LABEL: length64_eq_const:
; X86-SSE1:       # %bb.0:
; X86-SSE1-NEXT:    pushl $64
; X86-SSE1-NEXT:    pushl $.L.str
; X86-SSE1-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-SSE1-NEXT:    calll memcmp
; X86-SSE1-NEXT:    addl $12, %esp
; X86-SSE1-NEXT:    testl %eax, %eax
; X86-SSE1-NEXT:    sete %al
; X86-SSE1-NEXT:    retl
;
; X86-SSE2-LABEL: length64_eq_const:
; X86-SSE2:       # %bb.0:
; X86-SSE2-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE2-NEXT:    movdqu (%eax), %xmm0
; X86-SSE2-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE2-NEXT:    movdqu 32(%eax), %xmm2
; X86-SSE2-NEXT:    movdqu 48(%eax), %xmm3
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm3
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm2
; X86-SSE2-NEXT:    pand %xmm3, %xmm2
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE2-NEXT:    pand %xmm2, %xmm1
; X86-SSE2-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE2-NEXT:    pand %xmm1, %xmm0
; X86-SSE2-NEXT:    pmovmskb %xmm0, %eax
; X86-SSE2-NEXT:    cmpl $65535, %eax # imm = 0xFFFF
; X86-SSE2-NEXT:    sete %al
; X86-SSE2-NEXT:    retl
;
; X86-SSE41-LABEL: length64_eq_const:
; X86-SSE41:       # %bb.0:
; X86-SSE41-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-SSE41-NEXT:    movdqu (%eax), %xmm0
; X86-SSE41-NEXT:    movdqu 16(%eax), %xmm1
; X86-SSE41-NEXT:    movdqu 32(%eax), %xmm2
; X86-SSE41-NEXT:    movdqu 48(%eax), %xmm3
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm3
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm2
; X86-SSE41-NEXT:    por %xmm3, %xmm2
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1
; X86-SSE41-NEXT:    por %xmm2, %xmm1
; X86-SSE41-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
; X86-SSE41-NEXT:    por %xmm1, %xmm0
; X86-SSE41-NEXT:    ptest %xmm0, %xmm0
; X86-SSE41-NEXT:    sete %al
; X86-SSE41-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 64) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length96(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length96:
; X86:       # %bb.0:
; X86-NEXT:    pushl $96
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 96) nounwind
  ret i32 %m
}

define i1 @length96_eq(i8* %x, i8* %y) nounwind {
; X86-LABEL: length96_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $96
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 96) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length96_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length96_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $96
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 96) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length96_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length96_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $96
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 96) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length96_eq_const(i8* %X) nounwind {
; X86-LABEL: length96_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    pushl $96
; X86-NEXT:    pushl $.L.str
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 96) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length127(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length127:
; X86:       # %bb.0:
; X86-NEXT:    pushl $127
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 127) nounwind
  ret i32 %m
}

define i1 @length127_eq(i8* %x, i8* %y) nounwind {
; X86-LABEL: length127_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $127
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 127) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length127_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length127_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $127
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 127) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length127_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length127_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $127
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 127) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length127_eq_const(i8* %X) nounwind {
; X86-LABEL: length127_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    pushl $127
; X86-NEXT:    pushl $.L.str
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 127) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length128(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length128:
; X86:       # %bb.0:
; X86-NEXT:    pushl $128
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 128) nounwind
  ret i32 %m
}

define i1 @length128_eq(i8* %x, i8* %y) nounwind {
; X86-LABEL: length128_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $128
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 128) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length128_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length128_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $128
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 128) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length128_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length128_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $128
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 128) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length128_eq_const(i8* %X) nounwind {
; X86-LABEL: length128_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    pushl $128
; X86-NEXT:    pushl $.L.str
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 128) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length192(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length192:
; X86:       # %bb.0:
; X86-NEXT:    pushl $192
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 192) nounwind
  ret i32 %m
}

define i1 @length192_eq(i8* %x, i8* %y) nounwind {
; X86-LABEL: length192_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $192
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 192) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length192_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length192_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $192
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 192) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length192_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length192_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $192
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 192) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length192_eq_const(i8* %X) nounwind {
; X86-LABEL: length192_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    pushl $192
; X86-NEXT:    pushl $.L.str
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 192) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length255(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length255:
; X86:       # %bb.0:
; X86-NEXT:    pushl $255
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 255) nounwind
  ret i32 %m
}

define i1 @length255_eq(i8* %x, i8* %y) nounwind {
; X86-LABEL: length255_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $255
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 255) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length255_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length255_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $255
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 255) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length255_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length255_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $255
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 255) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length255_eq_const(i8* %X) nounwind {
; X86-LABEL: length255_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    pushl $255
; X86-NEXT:    pushl $.L.str
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 255) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length256(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length256:
; X86:       # %bb.0:
; X86-NEXT:    pushl $256 # imm = 0x100
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 256) nounwind
  ret i32 %m
}

define i1 @length256_eq(i8* %x, i8* %y) nounwind {
; X86-LABEL: length256_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $256 # imm = 0x100
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 256) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length256_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length256_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $256 # imm = 0x100
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 256) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length256_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length256_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $256 # imm = 0x100
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 256) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length256_eq_const(i8* %X) nounwind {
; X86-LABEL: length256_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    pushl $256 # imm = 0x100
; X86-NEXT:    pushl $.L.str
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 256) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length384(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length384:
; X86:       # %bb.0:
; X86-NEXT:    pushl $384 # imm = 0x180
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 384) nounwind
  ret i32 %m
}

define i1 @length384_eq(i8* %x, i8* %y) nounwind {
; X86-LABEL: length384_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $384 # imm = 0x180
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 384) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length384_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length384_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $384 # imm = 0x180
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 384) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length384_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length384_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $384 # imm = 0x180
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 384) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length384_eq_const(i8* %X) nounwind {
; X86-LABEL: length384_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    pushl $384 # imm = 0x180
; X86-NEXT:    pushl $.L.str
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 384) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length511(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length511:
; X86:       # %bb.0:
; X86-NEXT:    pushl $511 # imm = 0x1FF
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 511) nounwind
  ret i32 %m
}

define i1 @length511_eq(i8* %x, i8* %y) nounwind {
; X86-LABEL: length511_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $511 # imm = 0x1FF
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 511) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length511_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length511_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $511 # imm = 0x1FF
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 511) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length511_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length511_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $511 # imm = 0x1FF
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 511) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length511_eq_const(i8* %X) nounwind {
; X86-LABEL: length511_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    pushl $511 # imm = 0x1FF
; X86-NEXT:    pushl $.L.str
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 511) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

define i32 @length512(i8* %X, i8* %Y) nounwind {
; X86-LABEL: length512:
; X86:       # %bb.0:
; X86-NEXT:    pushl $512 # imm = 0x200
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 512) nounwind
  ret i32 %m
}

define i1 @length512_eq(i8* %x, i8* %y) nounwind {
; X86-LABEL: length512_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $512 # imm = 0x200
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setne %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 512) nounwind
  %cmp = icmp ne i32 %call, 0
  ret i1 %cmp
}

define i1 @length512_lt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length512_lt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $512 # imm = 0x200
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    shrl $31, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 512) nounwind
  %cmp = icmp slt i32 %call, 0
  ret i1 %cmp
}

define i1 @length512_gt(i8* %x, i8* %y) nounwind {
; X86-LABEL: length512_gt:
; X86:       # %bb.0:
; X86-NEXT:    pushl $512 # imm = 0x200
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    setg %al
; X86-NEXT:    retl
  %call = tail call i32 @memcmp(i8* %x, i8* %y, i32 512) nounwind
  %cmp = icmp sgt i32 %call, 0
  ret i1 %cmp
}

define i1 @length512_eq_const(i8* %X) nounwind {
; X86-LABEL: length512_eq_const:
; X86:       # %bb.0:
; X86-NEXT:    pushl $512 # imm = 0x200
; X86-NEXT:    pushl $.L.str
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([513 x i8], [513 x i8]* @.str, i32 0, i32 0), i32 512) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

; This checks that we do not do stupid things with huge sizes.
define i32 @huge_length(i8* %X, i8* %Y) nounwind {
; X86-LABEL: huge_length:
; X86:       # %bb.0:
; X86-NEXT:    pushl $-1
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 9223372036854775807) nounwind
  ret i32 %m
}

define i1 @huge_length_eq(i8* %X, i8* %Y) nounwind {
; X86-LABEL: huge_length_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl $-1
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 9223372036854775807) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}

; This checks non-constant sizes.
define i32 @nonconst_length(i8* %X, i8* %Y, i32 %size) nounwind {
; X86-LABEL: nonconst_length:
; X86:       # %bb.0:
; X86-NEXT:    jmp memcmp # TAILCALL
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 %size) nounwind
  ret i32 %m
}

define i1 @nonconst_length_eq(i8* %X, i8* %Y, i32 %size) nounwind {
; X86-LABEL: nonconst_length_eq:
; X86:       # %bb.0:
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    pushl {{[0-9]+}}(%esp)
; X86-NEXT:    calll memcmp
; X86-NEXT:    addl $12, %esp
; X86-NEXT:    testl %eax, %eax
; X86-NEXT:    sete %al
; X86-NEXT:    retl
  %m = tail call i32 @memcmp(i8* %X, i8* %Y, i32 %size) nounwind
  %c = icmp eq i32 %m, 0
  ret i1 %c
}