| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=cmov | FileCheck %s --check-prefix=X86 --check-prefix=X86-NOSSE |
| ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=X86 --check-prefix=X86-SSE2 |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64 --check-prefix=X64-SSE2 |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx | FileCheck %s --check-prefix=X64 --check-prefix=X64-AVX --check-prefix=X64-AVX1 |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx2 | FileCheck %s --check-prefix=X64 --check-prefix=X64-AVX --check-prefix=X64-AVX2 |
| |
| ; This tests codegen time inlining/optimization of memcmp |
| ; rdar://6480398 |
| |
| @.str = private constant [65 x i8] c"0123456789012345678901234567890123456789012345678901234567890123\00", align 1 |
| |
| declare i32 @memcmp(i8*, i8*, i64) |
| declare i32 @bcmp(i8*, i8*, i64) |
| |
| define i32 @length2(i8* %X, i8* %Y) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length2: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movzwl (%rdi), %eax |
| ; X64-NEXT: movzwl (%rsi), %ecx |
| ; X64-NEXT: rolw $8, %ax |
| ; X64-NEXT: rolw $8, %cx |
| ; X64-NEXT: movzwl %ax, %eax |
| ; X64-NEXT: movzwl %cx, %ecx |
| ; X64-NEXT: subl %ecx, %eax |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind |
| ret i32 %m |
| } |
| |
| define i1 @length2_eq(i8* %X, i8* %Y) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length2_eq: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movzwl (%rdi), %eax |
| ; X64-NEXT: cmpw (%rsi), %ax |
| ; X64-NEXT: sete %al |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind |
| %c = icmp eq i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i1 @length2_eq_const(i8* %X) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length2_eq_const: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movzwl (%rdi), %eax |
| ; X64-NEXT: cmpl $12849, %eax # imm = 0x3231 |
| ; X64-NEXT: setne %al |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 2) nounwind |
| %c = icmp ne i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i1 @length2_eq_nobuiltin_attr(i8* %X, i8* %Y) nounwind optsize { |
| ; X86-LABEL: length2_eq_nobuiltin_attr: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl $0 |
| ; X86-NEXT: pushl $2 |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: calll memcmp |
| ; X86-NEXT: addl $16, %esp |
| ; X86-NEXT: testl %eax, %eax |
| ; X86-NEXT: sete %al |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length2_eq_nobuiltin_attr: |
| ; X64: # %bb.0: |
| ; X64-NEXT: pushq %rax |
| ; X64-NEXT: movl $2, %edx |
| ; X64-NEXT: callq memcmp |
| ; X64-NEXT: testl %eax, %eax |
| ; X64-NEXT: sete %al |
| ; X64-NEXT: popq %rcx |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind nobuiltin |
| %c = icmp eq i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i32 @length3(i8* %X, i8* %Y) nounwind optsize { |
| ; X86-LABEL: length3: |
| ; X86: # %bb.0: # %loadbb |
| ; 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 .LBB4_1 |
| ; X86-NEXT: # %bb.2: # %loadbb1 |
| ; X86-NEXT: movzbl 2(%eax), %eax |
| ; X86-NEXT: movzbl 2(%ecx), %ecx |
| ; X86-NEXT: subl %ecx, %eax |
| ; X86-NEXT: jmp .LBB4_3 |
| ; X86-NEXT: .LBB4_1: # %res_block |
| ; X86-NEXT: setae %al |
| ; X86-NEXT: movzbl %al, %eax |
| ; X86-NEXT: leal -1(%eax,%eax), %eax |
| ; X86-NEXT: .LBB4_3: # %endblock |
| ; X86-NEXT: popl %esi |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length3: |
| ; X64: # %bb.0: # %loadbb |
| ; X64-NEXT: movzwl (%rdi), %eax |
| ; X64-NEXT: movzwl (%rsi), %ecx |
| ; X64-NEXT: rolw $8, %ax |
| ; X64-NEXT: rolw $8, %cx |
| ; X64-NEXT: cmpw %cx, %ax |
| ; X64-NEXT: jne .LBB4_1 |
| ; X64-NEXT: # %bb.2: # %loadbb1 |
| ; X64-NEXT: movzbl 2(%rdi), %eax |
| ; X64-NEXT: movzbl 2(%rsi), %ecx |
| ; X64-NEXT: subl %ecx, %eax |
| ; X64-NEXT: retq |
| ; X64-NEXT: .LBB4_1: # %res_block |
| ; X64-NEXT: setae %al |
| ; X64-NEXT: movzbl %al, %eax |
| ; X64-NEXT: leal -1(%rax,%rax), %eax |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 3) nounwind |
| ret i32 %m |
| } |
| |
| define i1 @length3_eq(i8* %X, i8* %Y) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length3_eq: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movzwl (%rdi), %eax |
| ; X64-NEXT: xorw (%rsi), %ax |
| ; X64-NEXT: movb 2(%rdi), %cl |
| ; X64-NEXT: xorb 2(%rsi), %cl |
| ; X64-NEXT: movzbl %cl, %ecx |
| ; X64-NEXT: orw %ax, %cx |
| ; X64-NEXT: setne %al |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 3) nounwind |
| %c = icmp ne i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i32 @length4(i8* %X, i8* %Y) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length4: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl (%rdi), %ecx |
| ; X64-NEXT: movl (%rsi), %edx |
| ; X64-NEXT: bswapl %ecx |
| ; X64-NEXT: bswapl %edx |
| ; X64-NEXT: xorl %eax, %eax |
| ; X64-NEXT: cmpl %edx, %ecx |
| ; X64-NEXT: seta %al |
| ; X64-NEXT: sbbl $0, %eax |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind |
| ret i32 %m |
| } |
| |
| define i1 @length4_eq(i8* %X, i8* %Y) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length4_eq: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl (%rdi), %eax |
| ; X64-NEXT: cmpl (%rsi), %eax |
| ; X64-NEXT: setne %al |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind |
| %c = icmp ne i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i1 @length4_eq_const(i8* %X) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length4_eq_const: |
| ; X64: # %bb.0: |
| ; X64-NEXT: cmpl $875770417, (%rdi) # imm = 0x34333231 |
| ; X64-NEXT: sete %al |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 4) nounwind |
| %c = icmp eq i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i32 @length5(i8* %X, i8* %Y) nounwind optsize { |
| ; X86-LABEL: length5: |
| ; X86: # %bb.0: # %loadbb |
| ; 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 .LBB9_1 |
| ; X86-NEXT: # %bb.2: # %loadbb1 |
| ; X86-NEXT: movzbl 4(%eax), %eax |
| ; X86-NEXT: movzbl 4(%ecx), %ecx |
| ; X86-NEXT: subl %ecx, %eax |
| ; X86-NEXT: jmp .LBB9_3 |
| ; X86-NEXT: .LBB9_1: # %res_block |
| ; X86-NEXT: setae %al |
| ; X86-NEXT: movzbl %al, %eax |
| ; X86-NEXT: leal -1(%eax,%eax), %eax |
| ; X86-NEXT: .LBB9_3: # %endblock |
| ; X86-NEXT: popl %esi |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length5: |
| ; X64: # %bb.0: # %loadbb |
| ; X64-NEXT: movl (%rdi), %eax |
| ; X64-NEXT: movl (%rsi), %ecx |
| ; X64-NEXT: bswapl %eax |
| ; X64-NEXT: bswapl %ecx |
| ; X64-NEXT: cmpl %ecx, %eax |
| ; X64-NEXT: jne .LBB9_1 |
| ; X64-NEXT: # %bb.2: # %loadbb1 |
| ; X64-NEXT: movzbl 4(%rdi), %eax |
| ; X64-NEXT: movzbl 4(%rsi), %ecx |
| ; X64-NEXT: subl %ecx, %eax |
| ; X64-NEXT: retq |
| ; X64-NEXT: .LBB9_1: # %res_block |
| ; X64-NEXT: setae %al |
| ; X64-NEXT: movzbl %al, %eax |
| ; X64-NEXT: leal -1(%rax,%rax), %eax |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 5) nounwind |
| ret i32 %m |
| } |
| |
| define i1 @length5_eq(i8* %X, i8* %Y) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length5_eq: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl (%rdi), %eax |
| ; X64-NEXT: xorl (%rsi), %eax |
| ; X64-NEXT: movb 4(%rdi), %cl |
| ; X64-NEXT: xorb 4(%rsi), %cl |
| ; X64-NEXT: movzbl %cl, %ecx |
| ; X64-NEXT: orl %eax, %ecx |
| ; X64-NEXT: setne %al |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 5) nounwind |
| %c = icmp ne i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i32 @length8(i8* %X, i8* %Y) nounwind optsize { |
| ; 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 .LBB11_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 .LBB11_3 |
| ; X86-NEXT: .LBB11_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: .LBB11_3: # %endblock |
| ; X86-NEXT: popl %esi |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length8: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movq (%rdi), %rcx |
| ; X64-NEXT: movq (%rsi), %rdx |
| ; X64-NEXT: bswapq %rcx |
| ; X64-NEXT: bswapq %rdx |
| ; X64-NEXT: xorl %eax, %eax |
| ; X64-NEXT: cmpq %rdx, %rcx |
| ; X64-NEXT: seta %al |
| ; X64-NEXT: sbbl $0, %eax |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind |
| ret i32 %m |
| } |
| |
| define i1 @length8_eq(i8* %X, i8* %Y) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length8_eq: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movq (%rdi), %rax |
| ; X64-NEXT: cmpq (%rsi), %rax |
| ; X64-NEXT: sete %al |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind |
| %c = icmp eq i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i1 @length8_eq_const(i8* %X) nounwind optsize { |
| ; 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 |
| ; |
| ; X64-LABEL: length8_eq_const: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movabsq $3978425819141910832, %rax # imm = 0x3736353433323130 |
| ; X64-NEXT: cmpq %rax, (%rdi) |
| ; X64-NEXT: setne %al |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 8) nounwind |
| %c = icmp ne i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i1 @length12_eq(i8* %X, i8* %Y) nounwind optsize { |
| ; X86-LABEL: length12_eq: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl $0 |
| ; X86-NEXT: pushl $12 |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: calll memcmp |
| ; X86-NEXT: addl $16, %esp |
| ; X86-NEXT: testl %eax, %eax |
| ; X86-NEXT: setne %al |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length12_eq: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movq (%rdi), %rax |
| ; X64-NEXT: xorq (%rsi), %rax |
| ; X64-NEXT: movl 8(%rdi), %ecx |
| ; X64-NEXT: xorl 8(%rsi), %ecx |
| ; X64-NEXT: orq %rax, %rcx |
| ; X64-NEXT: setne %al |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 12) nounwind |
| %c = icmp ne i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i32 @length12(i8* %X, i8* %Y) nounwind optsize { |
| ; X86-LABEL: length12: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl $0 |
| ; X86-NEXT: pushl $12 |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: calll memcmp |
| ; X86-NEXT: addl $16, %esp |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length12: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movq (%rdi), %rcx |
| ; X64-NEXT: movq (%rsi), %rdx |
| ; X64-NEXT: bswapq %rcx |
| ; X64-NEXT: bswapq %rdx |
| ; X64-NEXT: cmpq %rdx, %rcx |
| ; X64-NEXT: jne .LBB15_2 |
| ; X64-NEXT: # %bb.1: # %loadbb1 |
| ; X64-NEXT: movl 8(%rdi), %ecx |
| ; X64-NEXT: movl 8(%rsi), %edx |
| ; X64-NEXT: bswapl %ecx |
| ; X64-NEXT: bswapl %edx |
| ; X64-NEXT: xorl %eax, %eax |
| ; X64-NEXT: cmpq %rdx, %rcx |
| ; X64-NEXT: je .LBB15_3 |
| ; X64-NEXT: .LBB15_2: # %res_block |
| ; X64-NEXT: xorl %eax, %eax |
| ; X64-NEXT: cmpq %rdx, %rcx |
| ; X64-NEXT: setae %al |
| ; X64-NEXT: leal -1(%rax,%rax), %eax |
| ; X64-NEXT: .LBB15_3: # %endblock |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 12) nounwind |
| ret i32 %m |
| } |
| |
| ; PR33329 - https://bugs.llvm.org/show_bug.cgi?id=33329 |
| |
| define i32 @length16(i8* %X, i8* %Y) nounwind optsize { |
| ; X86-LABEL: length16: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl $0 |
| ; X86-NEXT: pushl $16 |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: calll memcmp |
| ; X86-NEXT: addl $16, %esp |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length16: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movq (%rdi), %rcx |
| ; X64-NEXT: movq (%rsi), %rdx |
| ; X64-NEXT: bswapq %rcx |
| ; X64-NEXT: bswapq %rdx |
| ; X64-NEXT: cmpq %rdx, %rcx |
| ; X64-NEXT: jne .LBB16_2 |
| ; X64-NEXT: # %bb.1: # %loadbb1 |
| ; X64-NEXT: movq 8(%rdi), %rcx |
| ; X64-NEXT: movq 8(%rsi), %rdx |
| ; X64-NEXT: bswapq %rcx |
| ; X64-NEXT: bswapq %rdx |
| ; X64-NEXT: xorl %eax, %eax |
| ; X64-NEXT: cmpq %rdx, %rcx |
| ; X64-NEXT: je .LBB16_3 |
| ; X64-NEXT: .LBB16_2: # %res_block |
| ; X64-NEXT: xorl %eax, %eax |
| ; X64-NEXT: cmpq %rdx, %rcx |
| ; X64-NEXT: setae %al |
| ; X64-NEXT: leal -1(%rax,%rax), %eax |
| ; X64-NEXT: .LBB16_3: # %endblock |
| ; X64-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 16) nounwind |
| ret i32 %m |
| } |
| |
| define i1 @length16_eq(i8* %x, i8* %y) nounwind optsize { |
| ; X86-NOSSE-LABEL: length16_eq: |
| ; X86-NOSSE: # %bb.0: |
| ; X86-NOSSE-NEXT: pushl $0 |
| ; X86-NOSSE-NEXT: pushl $16 |
| ; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NOSSE-NEXT: calll memcmp |
| ; X86-NOSSE-NEXT: addl $16, %esp |
| ; X86-NOSSE-NEXT: testl %eax, %eax |
| ; X86-NOSSE-NEXT: setne %al |
| ; X86-NOSSE-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 |
| ; |
| ; X64-SSE2-LABEL: length16_eq: |
| ; X64-SSE2: # %bb.0: |
| ; X64-SSE2-NEXT: movdqu (%rdi), %xmm0 |
| ; X64-SSE2-NEXT: movdqu (%rsi), %xmm1 |
| ; X64-SSE2-NEXT: pcmpeqb %xmm0, %xmm1 |
| ; X64-SSE2-NEXT: pmovmskb %xmm1, %eax |
| ; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF |
| ; X64-SSE2-NEXT: setne %al |
| ; X64-SSE2-NEXT: retq |
| ; |
| ; X64-AVX-LABEL: length16_eq: |
| ; X64-AVX: # %bb.0: |
| ; X64-AVX-NEXT: vmovdqu (%rdi), %xmm0 |
| ; X64-AVX-NEXT: vpxor (%rsi), %xmm0, %xmm0 |
| ; X64-AVX-NEXT: vptest %xmm0, %xmm0 |
| ; X64-AVX-NEXT: setne %al |
| ; X64-AVX-NEXT: retq |
| %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 16) nounwind |
| %cmp = icmp ne i32 %call, 0 |
| ret i1 %cmp |
| } |
| |
| define i1 @length16_eq_const(i8* %X) nounwind optsize { |
| ; X86-NOSSE-LABEL: length16_eq_const: |
| ; X86-NOSSE: # %bb.0: |
| ; X86-NOSSE-NEXT: pushl $0 |
| ; X86-NOSSE-NEXT: pushl $16 |
| ; X86-NOSSE-NEXT: pushl $.L.str |
| ; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NOSSE-NEXT: calll memcmp |
| ; X86-NOSSE-NEXT: addl $16, %esp |
| ; X86-NOSSE-NEXT: testl %eax, %eax |
| ; X86-NOSSE-NEXT: sete %al |
| ; X86-NOSSE-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.*}}, %xmm0 |
| ; X86-SSE2-NEXT: pmovmskb %xmm0, %eax |
| ; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF |
| ; X86-SSE2-NEXT: sete %al |
| ; X86-SSE2-NEXT: retl |
| ; |
| ; X64-SSE2-LABEL: length16_eq_const: |
| ; X64-SSE2: # %bb.0: |
| ; X64-SSE2-NEXT: movdqu (%rdi), %xmm0 |
| ; X64-SSE2-NEXT: pcmpeqb {{.*}}(%rip), %xmm0 |
| ; X64-SSE2-NEXT: pmovmskb %xmm0, %eax |
| ; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF |
| ; X64-SSE2-NEXT: sete %al |
| ; X64-SSE2-NEXT: retq |
| ; |
| ; X64-AVX-LABEL: length16_eq_const: |
| ; X64-AVX: # %bb.0: |
| ; X64-AVX-NEXT: vmovdqu (%rdi), %xmm0 |
| ; X64-AVX-NEXT: vpxor {{.*}}(%rip), %xmm0, %xmm0 |
| ; X64-AVX-NEXT: vptest %xmm0, %xmm0 |
| ; X64-AVX-NEXT: sete %al |
| ; X64-AVX-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 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 optsize { |
| ; X86-LABEL: length24: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl $0 |
| ; X86-NEXT: pushl $24 |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: calll memcmp |
| ; X86-NEXT: addl $16, %esp |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length24: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl $24, %edx |
| ; X64-NEXT: jmp memcmp # TAILCALL |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 24) nounwind |
| ret i32 %m |
| } |
| |
| define i1 @length24_eq(i8* %x, i8* %y) nounwind optsize { |
| ; X86-NOSSE-LABEL: length24_eq: |
| ; X86-NOSSE: # %bb.0: |
| ; X86-NOSSE-NEXT: pushl $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 $16, %esp |
| ; X86-NOSSE-NEXT: testl %eax, %eax |
| ; X86-NOSSE-NEXT: sete %al |
| ; X86-NOSSE-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 |
| ; |
| ; X64-SSE2-LABEL: length24_eq: |
| ; X64-SSE2: # %bb.0: |
| ; X64-SSE2-NEXT: movdqu (%rdi), %xmm0 |
| ; X64-SSE2-NEXT: movdqu (%rsi), %xmm1 |
| ; X64-SSE2-NEXT: pcmpeqb %xmm0, %xmm1 |
| ; X64-SSE2-NEXT: movq {{.*#+}} xmm0 = mem[0],zero |
| ; X64-SSE2-NEXT: movq {{.*#+}} xmm2 = mem[0],zero |
| ; X64-SSE2-NEXT: pcmpeqb %xmm0, %xmm2 |
| ; X64-SSE2-NEXT: pand %xmm1, %xmm2 |
| ; X64-SSE2-NEXT: pmovmskb %xmm2, %eax |
| ; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF |
| ; X64-SSE2-NEXT: sete %al |
| ; X64-SSE2-NEXT: retq |
| ; |
| ; X64-AVX-LABEL: length24_eq: |
| ; X64-AVX: # %bb.0: |
| ; X64-AVX-NEXT: vmovdqu (%rdi), %xmm0 |
| ; X64-AVX-NEXT: vmovq 16(%rdi), %xmm1 |
| ; X64-AVX-NEXT: vmovq 16(%rsi), %xmm2 |
| ; X64-AVX-NEXT: vpxor %xmm2, %xmm1, %xmm1 |
| ; X64-AVX-NEXT: vpxor (%rsi), %xmm0, %xmm0 |
| ; X64-AVX-NEXT: vpor %xmm1, %xmm0, %xmm0 |
| ; X64-AVX-NEXT: vptest %xmm0, %xmm0 |
| ; X64-AVX-NEXT: sete %al |
| ; X64-AVX-NEXT: retq |
| %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 24) nounwind |
| %cmp = icmp eq i32 %call, 0 |
| ret i1 %cmp |
| } |
| |
| define i1 @length24_eq_const(i8* %X) nounwind optsize { |
| ; X86-NOSSE-LABEL: length24_eq_const: |
| ; X86-NOSSE: # %bb.0: |
| ; X86-NOSSE-NEXT: pushl $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 $16, %esp |
| ; X86-NOSSE-NEXT: testl %eax, %eax |
| ; X86-NOSSE-NEXT: setne %al |
| ; X86-NOSSE-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.*}}, %xmm1 |
| ; X86-SSE2-NEXT: pcmpeqb {{\.LCPI.*}}, %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 |
| ; |
| ; X64-SSE2-LABEL: length24_eq_const: |
| ; X64-SSE2: # %bb.0: |
| ; X64-SSE2-NEXT: movdqu (%rdi), %xmm0 |
| ; X64-SSE2-NEXT: movq {{.*#+}} xmm1 = mem[0],zero |
| ; X64-SSE2-NEXT: pcmpeqb {{.*}}(%rip), %xmm1 |
| ; X64-SSE2-NEXT: pcmpeqb {{.*}}(%rip), %xmm0 |
| ; X64-SSE2-NEXT: pand %xmm1, %xmm0 |
| ; X64-SSE2-NEXT: pmovmskb %xmm0, %eax |
| ; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF |
| ; X64-SSE2-NEXT: setne %al |
| ; X64-SSE2-NEXT: retq |
| ; |
| ; X64-AVX-LABEL: length24_eq_const: |
| ; X64-AVX: # %bb.0: |
| ; X64-AVX-NEXT: vmovdqu (%rdi), %xmm0 |
| ; X64-AVX-NEXT: vmovq 16(%rdi), %xmm1 |
| ; X64-AVX-NEXT: vpxor {{.*}}(%rip), %xmm1, %xmm1 |
| ; X64-AVX-NEXT: vpxor {{.*}}(%rip), %xmm0, %xmm0 |
| ; X64-AVX-NEXT: vpor %xmm1, %xmm0, %xmm0 |
| ; X64-AVX-NEXT: vptest %xmm0, %xmm0 |
| ; X64-AVX-NEXT: setne %al |
| ; X64-AVX-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 24) nounwind |
| %c = icmp ne i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i32 @length32(i8* %X, i8* %Y) nounwind optsize { |
| ; X86-LABEL: length32: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl $0 |
| ; X86-NEXT: pushl $32 |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: calll memcmp |
| ; X86-NEXT: addl $16, %esp |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl $32, %edx |
| ; X64-NEXT: jmp memcmp # TAILCALL |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 32) nounwind |
| ret i32 %m |
| } |
| |
| ; PR33325 - https://bugs.llvm.org/show_bug.cgi?id=33325 |
| |
| define i1 @length32_eq(i8* %x, i8* %y) nounwind optsize { |
| ; X86-NOSSE-LABEL: length32_eq: |
| ; X86-NOSSE: # %bb.0: |
| ; X86-NOSSE-NEXT: pushl $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 $16, %esp |
| ; X86-NOSSE-NEXT: testl %eax, %eax |
| ; X86-NOSSE-NEXT: sete %al |
| ; X86-NOSSE-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 |
| ; |
| ; X64-SSE2-LABEL: length32_eq: |
| ; X64-SSE2: # %bb.0: |
| ; X64-SSE2-NEXT: movdqu (%rdi), %xmm0 |
| ; X64-SSE2-NEXT: movdqu 16(%rdi), %xmm1 |
| ; X64-SSE2-NEXT: movdqu (%rsi), %xmm2 |
| ; X64-SSE2-NEXT: pcmpeqb %xmm0, %xmm2 |
| ; X64-SSE2-NEXT: movdqu 16(%rsi), %xmm0 |
| ; X64-SSE2-NEXT: pcmpeqb %xmm1, %xmm0 |
| ; X64-SSE2-NEXT: pand %xmm2, %xmm0 |
| ; X64-SSE2-NEXT: pmovmskb %xmm0, %eax |
| ; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF |
| ; X64-SSE2-NEXT: sete %al |
| ; X64-SSE2-NEXT: retq |
| ; |
| ; X64-AVX1-LABEL: length32_eq: |
| ; X64-AVX1: # %bb.0: |
| ; X64-AVX1-NEXT: vmovdqu (%rdi), %xmm0 |
| ; X64-AVX1-NEXT: vmovdqu 16(%rdi), %xmm1 |
| ; X64-AVX1-NEXT: vpxor 16(%rsi), %xmm1, %xmm1 |
| ; X64-AVX1-NEXT: vpxor (%rsi), %xmm0, %xmm0 |
| ; X64-AVX1-NEXT: vpor %xmm1, %xmm0, %xmm0 |
| ; X64-AVX1-NEXT: vptest %xmm0, %xmm0 |
| ; X64-AVX1-NEXT: sete %al |
| ; X64-AVX1-NEXT: retq |
| ; |
| ; X64-AVX2-LABEL: length32_eq: |
| ; X64-AVX2: # %bb.0: |
| ; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0 |
| ; X64-AVX2-NEXT: vpxor (%rsi), %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: vptest %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: sete %al |
| ; X64-AVX2-NEXT: vzeroupper |
| ; X64-AVX2-NEXT: retq |
| %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 32) nounwind |
| %cmp = icmp eq i32 %call, 0 |
| ret i1 %cmp |
| } |
| |
| define i1 @length32_eq_const(i8* %X) nounwind optsize { |
| ; X86-NOSSE-LABEL: length32_eq_const: |
| ; X86-NOSSE: # %bb.0: |
| ; X86-NOSSE-NEXT: pushl $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 $16, %esp |
| ; X86-NOSSE-NEXT: testl %eax, %eax |
| ; X86-NOSSE-NEXT: setne %al |
| ; X86-NOSSE-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.*}}, %xmm1 |
| ; X86-SSE2-NEXT: pcmpeqb {{\.LCPI.*}}, %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 |
| ; |
| ; X64-SSE2-LABEL: length32_eq_const: |
| ; X64-SSE2: # %bb.0: |
| ; X64-SSE2-NEXT: movdqu (%rdi), %xmm0 |
| ; X64-SSE2-NEXT: movdqu 16(%rdi), %xmm1 |
| ; X64-SSE2-NEXT: pcmpeqb {{.*}}(%rip), %xmm1 |
| ; X64-SSE2-NEXT: pcmpeqb {{.*}}(%rip), %xmm0 |
| ; X64-SSE2-NEXT: pand %xmm1, %xmm0 |
| ; X64-SSE2-NEXT: pmovmskb %xmm0, %eax |
| ; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF |
| ; X64-SSE2-NEXT: setne %al |
| ; X64-SSE2-NEXT: retq |
| ; |
| ; X64-AVX1-LABEL: length32_eq_const: |
| ; X64-AVX1: # %bb.0: |
| ; X64-AVX1-NEXT: vmovdqu (%rdi), %xmm0 |
| ; X64-AVX1-NEXT: vmovdqu 16(%rdi), %xmm1 |
| ; X64-AVX1-NEXT: vpxor {{.*}}(%rip), %xmm1, %xmm1 |
| ; X64-AVX1-NEXT: vpxor {{.*}}(%rip), %xmm0, %xmm0 |
| ; X64-AVX1-NEXT: vpor %xmm1, %xmm0, %xmm0 |
| ; X64-AVX1-NEXT: vptest %xmm0, %xmm0 |
| ; X64-AVX1-NEXT: setne %al |
| ; X64-AVX1-NEXT: retq |
| ; |
| ; X64-AVX2-LABEL: length32_eq_const: |
| ; X64-AVX2: # %bb.0: |
| ; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0 |
| ; X64-AVX2-NEXT: vpxor {{.*}}(%rip), %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: vptest %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: setne %al |
| ; X64-AVX2-NEXT: vzeroupper |
| ; X64-AVX2-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 32) nounwind |
| %c = icmp ne i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i32 @length64(i8* %X, i8* %Y) nounwind optsize { |
| ; X86-LABEL: length64: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl $0 |
| ; X86-NEXT: pushl $64 |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: calll memcmp |
| ; X86-NEXT: addl $16, %esp |
| ; X86-NEXT: retl |
| ; |
| ; X64-LABEL: length64: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl $64, %edx |
| ; X64-NEXT: jmp memcmp # TAILCALL |
| %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 64) nounwind |
| ret i32 %m |
| } |
| |
| define i1 @length64_eq(i8* %x, i8* %y) nounwind optsize { |
| ; X86-LABEL: length64_eq: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl $0 |
| ; X86-NEXT: pushl $64 |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: calll memcmp |
| ; X86-NEXT: addl $16, %esp |
| ; X86-NEXT: testl %eax, %eax |
| ; X86-NEXT: setne %al |
| ; X86-NEXT: retl |
| ; |
| ; X64-SSE2-LABEL: length64_eq: |
| ; X64-SSE2: # %bb.0: |
| ; X64-SSE2-NEXT: pushq %rax |
| ; X64-SSE2-NEXT: movl $64, %edx |
| ; X64-SSE2-NEXT: callq memcmp |
| ; X64-SSE2-NEXT: testl %eax, %eax |
| ; X64-SSE2-NEXT: setne %al |
| ; X64-SSE2-NEXT: popq %rcx |
| ; X64-SSE2-NEXT: retq |
| ; |
| ; X64-AVX1-LABEL: length64_eq: |
| ; X64-AVX1: # %bb.0: |
| ; X64-AVX1-NEXT: pushq %rax |
| ; X64-AVX1-NEXT: movl $64, %edx |
| ; X64-AVX1-NEXT: callq memcmp |
| ; X64-AVX1-NEXT: testl %eax, %eax |
| ; X64-AVX1-NEXT: setne %al |
| ; X64-AVX1-NEXT: popq %rcx |
| ; X64-AVX1-NEXT: retq |
| ; |
| ; X64-AVX2-LABEL: length64_eq: |
| ; X64-AVX2: # %bb.0: |
| ; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0 |
| ; X64-AVX2-NEXT: vmovdqu 32(%rdi), %ymm1 |
| ; X64-AVX2-NEXT: vpxor 32(%rsi), %ymm1, %ymm1 |
| ; X64-AVX2-NEXT: vpxor (%rsi), %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: vpor %ymm1, %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: vptest %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: setne %al |
| ; X64-AVX2-NEXT: vzeroupper |
| ; X64-AVX2-NEXT: retq |
| %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 64) nounwind |
| %cmp = icmp ne i32 %call, 0 |
| ret i1 %cmp |
| } |
| |
| define i1 @length64_eq_const(i8* %X) nounwind optsize { |
| ; X86-LABEL: length64_eq_const: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl $0 |
| ; X86-NEXT: pushl $64 |
| ; X86-NEXT: pushl $.L.str |
| ; X86-NEXT: pushl {{[0-9]+}}(%esp) |
| ; X86-NEXT: calll memcmp |
| ; X86-NEXT: addl $16, %esp |
| ; X86-NEXT: testl %eax, %eax |
| ; X86-NEXT: sete %al |
| ; X86-NEXT: retl |
| ; |
| ; X64-SSE2-LABEL: length64_eq_const: |
| ; X64-SSE2: # %bb.0: |
| ; X64-SSE2-NEXT: pushq %rax |
| ; X64-SSE2-NEXT: movl $.L.str, %esi |
| ; X64-SSE2-NEXT: movl $64, %edx |
| ; X64-SSE2-NEXT: callq memcmp |
| ; X64-SSE2-NEXT: testl %eax, %eax |
| ; X64-SSE2-NEXT: sete %al |
| ; X64-SSE2-NEXT: popq %rcx |
| ; X64-SSE2-NEXT: retq |
| ; |
| ; X64-AVX1-LABEL: length64_eq_const: |
| ; X64-AVX1: # %bb.0: |
| ; X64-AVX1-NEXT: pushq %rax |
| ; X64-AVX1-NEXT: movl $.L.str, %esi |
| ; X64-AVX1-NEXT: movl $64, %edx |
| ; X64-AVX1-NEXT: callq memcmp |
| ; X64-AVX1-NEXT: testl %eax, %eax |
| ; X64-AVX1-NEXT: sete %al |
| ; X64-AVX1-NEXT: popq %rcx |
| ; X64-AVX1-NEXT: retq |
| ; |
| ; X64-AVX2-LABEL: length64_eq_const: |
| ; X64-AVX2: # %bb.0: |
| ; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0 |
| ; X64-AVX2-NEXT: vmovdqu 32(%rdi), %ymm1 |
| ; X64-AVX2-NEXT: vpxor {{.*}}(%rip), %ymm1, %ymm1 |
| ; X64-AVX2-NEXT: vpxor {{.*}}(%rip), %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: vpor %ymm1, %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: vptest %ymm0, %ymm0 |
| ; X64-AVX2-NEXT: sete %al |
| ; X64-AVX2-NEXT: vzeroupper |
| ; X64-AVX2-NEXT: retq |
| %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 64) nounwind |
| %c = icmp eq i32 %m, 0 |
| ret i1 %c |
| } |
| |
| define i32 @bcmp_length2(i8* %X, i8* %Y) nounwind optsize { |
| ; X86-LABEL: bcmp_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 |
| ; |
| ; X64-LABEL: bcmp_length2: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movzwl (%rdi), %eax |
| ; X64-NEXT: movzwl (%rsi), %ecx |
| ; X64-NEXT: rolw $8, %ax |
| ; X64-NEXT: rolw $8, %cx |
| ; X64-NEXT: movzwl %ax, %eax |
| ; X64-NEXT: movzwl %cx, %ecx |
| ; X64-NEXT: subl %ecx, %eax |
| ; X64-NEXT: retq |
| %m = tail call i32 @bcmp(i8* %X, i8* %Y, i64 2) nounwind |
| ret i32 %m |
| } |
| |