llvm/test/CodeGen/X86/sadd_sat.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686 -mattr=cmov | FileCheck %s --check-prefix=X86
; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s --check-prefix=X64

declare i4 @llvm.sadd.sat.i4(i4, i4)
declare i8 @llvm.sadd.sat.i8(i8, i8)
declare i16 @llvm.sadd.sat.i16(i16, i16)
declare i32 @llvm.sadd.sat.i32(i32, i32)
declare i64 @llvm.sadd.sat.i64(i64, i64)
declare <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32>, <4 x i32>)

define i32 @func(i32 %x, i32 %y) nounwind {
; X86-LABEL: func:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    leal (%eax,%ecx), %edx
; X86-NEXT:    sarl $31, %edx
; X86-NEXT:    xorl $-2147483648, %edx # imm = 0x80000000
; X86-NEXT:    addl %ecx, %eax
; X86-NEXT:    cmovol %edx, %eax
; X86-NEXT:    retl
;
; X64-LABEL: func:
; X64:       # %bb.0:
; X64-NEXT:    # kill: def $esi killed $esi def $rsi
; X64-NEXT:    # kill: def $edi killed $edi def $rdi
; X64-NEXT:    leal (%rdi,%rsi), %eax
; X64-NEXT:    sarl $31, %eax
; X64-NEXT:    xorl $-2147483648, %eax # imm = 0x80000000
; X64-NEXT:    addl %esi, %edi
; X64-NEXT:    cmovnol %edi, %eax
; X64-NEXT:    retq
  %tmp = call i32 @llvm.sadd.sat.i32(i32 %x, i32 %y);
  ret i32 %tmp;
}

define i64 @func2(i64 %x, i64 %y) nounwind {
; X86-LABEL: func2:
; X86:       # %bb.0:
; X86-NEXT:    pushl %ebx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    addl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    adcl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    seto %bl
; X86-NEXT:    movl %ecx, %edx
; X86-NEXT:    sarl $31, %edx
; X86-NEXT:    testb %bl, %bl
; X86-NEXT:    cmovnel %edx, %eax
; X86-NEXT:    xorl $-2147483648, %edx # imm = 0x80000000
; X86-NEXT:    testb %bl, %bl
; X86-NEXT:    cmovel %ecx, %edx
; X86-NEXT:    popl %ebx
; X86-NEXT:    retl
;
; X64-LABEL: func2:
; X64:       # %bb.0:
; X64-NEXT:    leaq (%rdi,%rsi), %rcx
; X64-NEXT:    sarq $63, %rcx
; X64-NEXT:    movabsq $-9223372036854775808, %rax # imm = 0x8000000000000000
; X64-NEXT:    xorq %rcx, %rax
; X64-NEXT:    addq %rsi, %rdi
; X64-NEXT:    cmovnoq %rdi, %rax
; X64-NEXT:    retq
  %tmp = call i64 @llvm.sadd.sat.i64(i64 %x, i64 %y);
  ret i64 %tmp;
}

define signext i16 @func16(i16 signext %x, i16 signext %y) nounwind {
; X86-LABEL: func16:
; X86:       # %bb.0:
; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl %eax, %edx
; X86-NEXT:    addw %cx, %dx
; X86-NEXT:    movswl %dx, %edx
; X86-NEXT:    sarl $15, %edx
; X86-NEXT:    xorl $-32768, %edx # imm = 0x8000
; X86-NEXT:    addw %cx, %ax
; X86-NEXT:    cmovol %edx, %eax
; X86-NEXT:    # kill: def $ax killed $ax killed $eax
; X86-NEXT:    retl
;
; X64-LABEL: func16:
; X64:       # %bb.0:
; X64-NEXT:    # kill: def $esi killed $esi def $rsi
; X64-NEXT:    # kill: def $edi killed $edi def $rdi
; X64-NEXT:    leal (%rdi,%rsi), %eax
; X64-NEXT:    cwtl
; X64-NEXT:    sarl $15, %eax
; X64-NEXT:    xorl $-32768, %eax # imm = 0x8000
; X64-NEXT:    addw %si, %di
; X64-NEXT:    cmovnol %edi, %eax
; X64-NEXT:    # kill: def $ax killed $ax killed $eax
; X64-NEXT:    retq
  %tmp = call i16 @llvm.sadd.sat.i16(i16 %x, i16 %y)
  ret i16 %tmp
}

define signext i8 @func8(i8 signext %x, i8 signext %y) nounwind {
; X86-LABEL: func8:
; X86:       # %bb.0:
; X86-NEXT:    movb {{[0-9]+}}(%esp), %al
; X86-NEXT:    movb {{[0-9]+}}(%esp), %cl
; X86-NEXT:    movl %eax, %edx
; X86-NEXT:    addb %cl, %dl
; X86-NEXT:    sarb $7, %dl
; X86-NEXT:    xorb $-128, %dl
; X86-NEXT:    addb %cl, %al
; X86-NEXT:    movzbl %al, %ecx
; X86-NEXT:    movzbl %dl, %eax
; X86-NEXT:    cmovnol %ecx, %eax
; X86-NEXT:    # kill: def $al killed $al killed $eax
; X86-NEXT:    retl
;
; X64-LABEL: func8:
; X64:       # %bb.0:
; X64-NEXT:    # kill: def $esi killed $esi def $rsi
; X64-NEXT:    # kill: def $edi killed $edi def $rdi
; X64-NEXT:    leal (%rdi,%rsi), %eax
; X64-NEXT:    sarb $7, %al
; X64-NEXT:    xorb $-128, %al
; X64-NEXT:    addb %sil, %dil
; X64-NEXT:    movzbl %dil, %ecx
; X64-NEXT:    movzbl %al, %eax
; X64-NEXT:    cmovnol %ecx, %eax
; X64-NEXT:    # kill: def $al killed $al killed $eax
; X64-NEXT:    retq
  %tmp = call i8 @llvm.sadd.sat.i8(i8 %x, i8 %y)
  ret i8 %tmp
}

define signext i4 @func3(i4 signext %x, i4 signext %y) nounwind {
; X86-LABEL: func3:
; X86:       # %bb.0:
; X86-NEXT:    movb {{[0-9]+}}(%esp), %al
; X86-NEXT:    addb {{[0-9]+}}(%esp), %al
; X86-NEXT:    movzbl %al, %ecx
; X86-NEXT:    cmpb $7, %al
; X86-NEXT:    movl $7, %eax
; X86-NEXT:    cmovll %ecx, %eax
; X86-NEXT:    cmpb $-7, %al
; X86-NEXT:    movl $248, %ecx
; X86-NEXT:    cmovgel %eax, %ecx
; X86-NEXT:    movsbl %cl, %eax
; X86-NEXT:    retl
;
; X64-LABEL: func3:
; X64:       # %bb.0:
; X64-NEXT:    addb %sil, %dil
; X64-NEXT:    movzbl %dil, %eax
; X64-NEXT:    cmpb $7, %al
; X64-NEXT:    movl $7, %ecx
; X64-NEXT:    cmovll %eax, %ecx
; X64-NEXT:    cmpb $-7, %cl
; X64-NEXT:    movl $248, %eax
; X64-NEXT:    cmovgel %ecx, %eax
; X64-NEXT:    movsbl %al, %eax
; X64-NEXT:    retq
  %tmp = call i4 @llvm.sadd.sat.i4(i4 %x, i4 %y);
  ret i4 %tmp;
}

define <4 x i32> @vec(<4 x i32> %x, <4 x i32> %y) nounwind {
; X86-LABEL: vec:
; X86:       # %bb.0:
; X86-NEXT:    pushl %ebx
; X86-NEXT:    pushl %edi
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    leal (%ecx,%eax), %esi
; X86-NEXT:    sarl $31, %esi
; X86-NEXT:    xorl $-2147483648, %esi # imm = 0x80000000
; X86-NEXT:    addl %eax, %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
; X86-NEXT:    cmovol %esi, %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    leal (%edx,%eax), %edi
; X86-NEXT:    sarl $31, %edi
; X86-NEXT:    xorl $-2147483648, %edi # imm = 0x80000000
; X86-NEXT:    addl %eax, %edx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %esi
; X86-NEXT:    cmovol %edi, %edx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    leal (%esi,%eax), %ebx
; X86-NEXT:    sarl $31, %ebx
; X86-NEXT:    xorl $-2147483648, %ebx # imm = 0x80000000
; X86-NEXT:    addl %eax, %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %edi
; X86-NEXT:    cmovol %ebx, %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    leal (%edi,%eax), %ebx
; X86-NEXT:    sarl $31, %ebx
; X86-NEXT:    xorl $-2147483648, %ebx # imm = 0x80000000
; X86-NEXT:    addl %eax, %edi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    cmovol %ebx, %edi
; X86-NEXT:    movl %ecx, 12(%eax)
; X86-NEXT:    movl %edx, 8(%eax)
; X86-NEXT:    movl %esi, 4(%eax)
; X86-NEXT:    movl %edi, (%eax)
; X86-NEXT:    popl %esi
; X86-NEXT:    popl %edi
; X86-NEXT:    popl %ebx
; X86-NEXT:    retl $4
;
; X64-LABEL: vec:
; X64:       # %bb.0:
; X64-NEXT:    pxor %xmm2, %xmm2
; X64-NEXT:    pcmpgtd %xmm1, %xmm2
; X64-NEXT:    paddd %xmm0, %xmm1
; X64-NEXT:    pcmpgtd %xmm1, %xmm0
; X64-NEXT:    pxor %xmm2, %xmm0
; X64-NEXT:    movdqa %xmm0, %xmm2
; X64-NEXT:    pandn %xmm1, %xmm2
; X64-NEXT:    psrad $31, %xmm1
; X64-NEXT:    pxor {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
; X64-NEXT:    pand %xmm1, %xmm0
; X64-NEXT:    por %xmm2, %xmm0
; X64-NEXT:    retq
  %tmp = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> %x, <4 x i32> %y);
  ret <4 x i32> %tmp;
}