forked from OSchip/llvm-project
369 lines
10 KiB
LLVM
369 lines
10 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefix=X32
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64 --check-prefix=SSE2
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=AVX2 | FileCheck %s --check-prefix=X64 --check-prefix=AVX2
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; This tests codegen time inlining/optimization of memcmp
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; rdar://6480398
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@.str = private constant [65 x i8] c"0123456789012345678901234567890123456789012345678901234567890123\00", align 1
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declare i32 @memcmp(i8*, i8*, i64)
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define i1 @length2(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; X32-LABEL: length2:
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; X32: # BB#0:
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; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X32-NEXT: movzwl (%ecx), %ecx
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; X32-NEXT: cmpw (%eax), %cx
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; X32-NEXT: sete %al
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; X32-NEXT: retl
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;
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; X64-LABEL: length2:
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; X64: # BB#0:
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; X64-NEXT: movzwl (%rdi), %eax
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; X64-NEXT: cmpw (%rsi), %ax
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; X64-NEXT: sete %al
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; X64-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @length2_const(i8* %X, i32* nocapture %P) nounwind {
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; X32-LABEL: length2_const:
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; X32: # BB#0:
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; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NEXT: movzwl (%eax), %eax
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; X32-NEXT: cmpl $12849, %eax # imm = 0x3231
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; X32-NEXT: setne %al
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; X32-NEXT: retl
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;
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; X64-LABEL: length2_const:
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; X64: # BB#0:
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; X64-NEXT: movzwl (%rdi), %eax
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; X64-NEXT: cmpl $12849, %eax # imm = 0x3231
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; X64-NEXT: setne %al
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; X64-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 2) nounwind
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%c = icmp ne i32 %m, 0
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ret i1 %c
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}
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define i1 @length2_nobuiltin_attr(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; X32-LABEL: length2_nobuiltin_attr:
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; X32: # BB#0:
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; X32-NEXT: pushl $0
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; X32-NEXT: pushl $2
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: calll memcmp
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; X32-NEXT: addl $16, %esp
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; X32-NEXT: testl %eax, %eax
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; X32-NEXT: sete %al
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; X32-NEXT: retl
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;
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; X64-LABEL: length2_nobuiltin_attr:
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; X64: # BB#0:
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; X64-NEXT: pushq %rax
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; X64-NEXT: movl $2, %edx
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; X64-NEXT: callq memcmp
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; X64-NEXT: testl %eax, %eax
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; X64-NEXT: sete %al
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; X64-NEXT: popq %rcx
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; X64-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind nobuiltin
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @length4(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; X32-LABEL: length4:
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; X32: # BB#0:
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; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X32-NEXT: movl (%ecx), %ecx
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; X32-NEXT: cmpl (%eax), %ecx
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; X32-NEXT: setne %al
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; X32-NEXT: retl
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;
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; X64-LABEL: length4:
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; X64: # BB#0:
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; X64-NEXT: movl (%rdi), %eax
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; X64-NEXT: cmpl (%rsi), %eax
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; X64-NEXT: setne %al
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; X64-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind
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%c = icmp ne i32 %m, 0
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ret i1 %c
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}
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define i1 @length4_const(i8* %X, i32* nocapture %P) nounwind {
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; X32-LABEL: length4_const:
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; X32: # BB#0:
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; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NEXT: cmpl $875770417, (%eax) # imm = 0x34333231
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; X32-NEXT: sete %al
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; X32-NEXT: retl
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;
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; X64-LABEL: length4_const:
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; X64: # BB#0:
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; X64-NEXT: cmpl $875770417, (%rdi) # imm = 0x34333231
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; X64-NEXT: sete %al
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; X64-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 4) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @length8(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; X32-LABEL: length8:
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; X32: # BB#0:
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; X32-NEXT: pushl $0
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; X32-NEXT: pushl $8
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: calll memcmp
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; X32-NEXT: addl $16, %esp
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; X32-NEXT: testl %eax, %eax
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; X32-NEXT: sete %al
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; X32-NEXT: retl
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;
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; X64-LABEL: length8:
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; X64: # BB#0:
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; X64-NEXT: movq (%rdi), %rax
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; X64-NEXT: cmpq (%rsi), %rax
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; X64-NEXT: sete %al
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; X64-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @length8_const(i8* %X, i32* nocapture %P) nounwind {
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; X32-LABEL: length8_const:
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; X32: # BB#0:
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; X32-NEXT: pushl $0
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; X32-NEXT: pushl $8
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; X32-NEXT: pushl $.L.str
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: calll memcmp
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; X32-NEXT: addl $16, %esp
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; X32-NEXT: testl %eax, %eax
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; X32-NEXT: setne %al
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; X32-NEXT: retl
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;
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; X64-LABEL: length8_const:
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; X64: # BB#0:
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; X64-NEXT: movabsq $3978425819141910832, %rax # imm = 0x3736353433323130
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; X64-NEXT: cmpq %rax, (%rdi)
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; X64-NEXT: setne %al
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; X64-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 8) nounwind
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%c = icmp ne i32 %m, 0
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ret i1 %c
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}
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define i1 @length16(i8* %x, i8* %y) nounwind {
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; X32-LABEL: length16:
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; X32: # BB#0:
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; X32-NEXT: pushl $0
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; X32-NEXT: pushl $16
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: calll memcmp
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; X32-NEXT: addl $16, %esp
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; X32-NEXT: testl %eax, %eax
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; X32-NEXT: setne %al
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; X32-NEXT: retl
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;
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; SSE2-LABEL: length16:
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; SSE2: # BB#0:
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; SSE2-NEXT: movdqu (%rsi), %xmm0
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; SSE2-NEXT: movdqu (%rdi), %xmm1
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; SSE2-NEXT: pcmpeqb %xmm0, %xmm1
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; SSE2-NEXT: pmovmskb %xmm1, %eax
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; SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
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; SSE2-NEXT: setne %al
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; SSE2-NEXT: retq
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;
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; AVX2-LABEL: length16:
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; AVX2: # BB#0:
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; AVX2-NEXT: vmovdqu (%rdi), %xmm0
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; AVX2-NEXT: vpcmpeqb (%rsi), %xmm0, %xmm0
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; AVX2-NEXT: vpmovmskb %xmm0, %eax
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; AVX2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
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; AVX2-NEXT: setne %al
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; AVX2-NEXT: retq
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%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 16) nounwind
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%cmp = icmp ne i32 %call, 0
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ret i1 %cmp
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}
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define i1 @length16_const(i8* %X, i32* nocapture %P) nounwind {
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; X32-LABEL: length16_const:
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; X32: # BB#0:
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; X32-NEXT: pushl $0
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; X32-NEXT: pushl $16
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; X32-NEXT: pushl $.L.str
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: calll memcmp
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; X32-NEXT: addl $16, %esp
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; X32-NEXT: testl %eax, %eax
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; X32-NEXT: sete %al
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; X32-NEXT: retl
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;
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; SSE2-LABEL: length16_const:
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; SSE2: # BB#0:
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; SSE2-NEXT: movdqu (%rdi), %xmm0
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; SSE2-NEXT: pcmpeqb {{.*}}(%rip), %xmm0
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; SSE2-NEXT: pmovmskb %xmm0, %eax
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; SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
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; SSE2-NEXT: sete %al
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; SSE2-NEXT: retq
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;
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; AVX2-LABEL: length16_const:
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; AVX2: # BB#0:
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; AVX2-NEXT: vmovdqu (%rdi), %xmm0
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; AVX2-NEXT: vpcmpeqb {{.*}}(%rip), %xmm0, %xmm0
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; AVX2-NEXT: vpmovmskb %xmm0, %eax
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; AVX2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
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; AVX2-NEXT: sete %al
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; AVX2-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 16) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @length32(i8* %x, i8* %y) nounwind {
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; X32-LABEL: length32:
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; X32: # BB#0:
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; X32-NEXT: pushl $0
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; X32-NEXT: pushl $32
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: calll memcmp
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; X32-NEXT: addl $16, %esp
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; X32-NEXT: testl %eax, %eax
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; X32-NEXT: sete %al
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; X32-NEXT: retl
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;
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; SSE2-LABEL: length32:
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; SSE2: # BB#0:
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; SSE2-NEXT: pushq %rax
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; SSE2-NEXT: movl $32, %edx
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; SSE2-NEXT: callq memcmp
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; SSE2-NEXT: testl %eax, %eax
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; SSE2-NEXT: sete %al
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; SSE2-NEXT: popq %rcx
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; SSE2-NEXT: retq
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;
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; AVX2-LABEL: length32:
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; AVX2: # BB#0:
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; AVX2-NEXT: vmovdqu (%rdi), %ymm0
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; AVX2-NEXT: vpcmpeqb (%rsi), %ymm0, %ymm0
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; AVX2-NEXT: vpmovmskb %ymm0, %eax
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; AVX2-NEXT: cmpl $-1, %eax
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; AVX2-NEXT: sete %al
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; AVX2-NEXT: vzeroupper
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; AVX2-NEXT: retq
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%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 32) nounwind
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%cmp = icmp eq i32 %call, 0
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ret i1 %cmp
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}
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define i1 @length32_const(i8* %X, i32* nocapture %P) nounwind {
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; X32-LABEL: length32_const:
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; X32: # BB#0:
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; X32-NEXT: pushl $0
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; X32-NEXT: pushl $32
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; X32-NEXT: pushl $.L.str
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: calll memcmp
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; X32-NEXT: addl $16, %esp
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; X32-NEXT: testl %eax, %eax
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; X32-NEXT: setne %al
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; X32-NEXT: retl
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;
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; SSE2-LABEL: length32_const:
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; SSE2: # BB#0:
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; SSE2-NEXT: pushq %rax
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; SSE2-NEXT: movl $.L.str, %esi
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; SSE2-NEXT: movl $32, %edx
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; SSE2-NEXT: callq memcmp
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; SSE2-NEXT: testl %eax, %eax
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; SSE2-NEXT: setne %al
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; SSE2-NEXT: popq %rcx
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; SSE2-NEXT: retq
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;
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; AVX2-LABEL: length32_const:
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; AVX2: # BB#0:
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; AVX2-NEXT: vmovdqu (%rdi), %ymm0
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; AVX2-NEXT: vpcmpeqb {{.*}}(%rip), %ymm0, %ymm0
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; AVX2-NEXT: vpmovmskb %ymm0, %eax
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; AVX2-NEXT: cmpl $-1, %eax
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; AVX2-NEXT: setne %al
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; AVX2-NEXT: vzeroupper
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; AVX2-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 32) nounwind
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%c = icmp ne i32 %m, 0
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ret i1 %c
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}
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define i1 @length64(i8* %x, i8* %y) nounwind {
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; X32-LABEL: length64:
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; X32: # BB#0:
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; X32-NEXT: pushl $0
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; X32-NEXT: pushl $64
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: calll memcmp
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; X32-NEXT: addl $16, %esp
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; X32-NEXT: testl %eax, %eax
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; X32-NEXT: setne %al
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; X32-NEXT: retl
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;
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; X64-LABEL: length64:
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; X64: # BB#0:
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; X64-NEXT: pushq %rax
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; X64-NEXT: movl $64, %edx
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; X64-NEXT: callq memcmp
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; X64-NEXT: testl %eax, %eax
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; X64-NEXT: setne %al
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; X64-NEXT: popq %rcx
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; X64-NEXT: retq
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%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 64) nounwind
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%cmp = icmp ne i32 %call, 0
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ret i1 %cmp
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}
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define i1 @length64_const(i8* %X, i32* nocapture %P) nounwind {
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; X32-LABEL: length64_const:
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; X32: # BB#0:
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; X32-NEXT: pushl $0
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; X32-NEXT: pushl $64
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; X32-NEXT: pushl $.L.str
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; X32-NEXT: pushl {{[0-9]+}}(%esp)
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; X32-NEXT: calll memcmp
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; X32-NEXT: addl $16, %esp
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; X32-NEXT: testl %eax, %eax
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; X32-NEXT: sete %al
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; X32-NEXT: retl
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;
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; X64-LABEL: length64_const:
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; X64: # BB#0:
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; X64-NEXT: pushq %rax
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; X64-NEXT: movl $.L.str, %esi
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; X64-NEXT: movl $64, %edx
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; X64-NEXT: callq memcmp
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; X64-NEXT: testl %eax, %eax
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; X64-NEXT: sete %al
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; X64-NEXT: popq %rcx
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; X64-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 64) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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