derek.holloway
7502bf64a4
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109 lines
2.8 KiB
LLVM
109 lines
2.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: opt -passes=expand-memcmp -mtriple=x86_64-unknown-unknown -S < %s | llc -mtriple=x86_64-unknown-unknown | FileCheck %s
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@.str1 = private constant [4 x i8] c"\00\00\00\00", align 1
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@.str2 = private constant [4 x i8] c"\ff\ff\ff\ff", align 1
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declare i32 @memcmp(ptr, ptr, i64)
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define i32 @length4_same() nounwind {
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; CHECK-LABEL: length4_same:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str1, i64 4) nounwind
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ret i32 %m
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}
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define i1 @length4_same_lt() nounwind {
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; CHECK-LABEL: length4_same_lt:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str1, i64 4) nounwind
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%c = icmp slt i32 %m, 0
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ret i1 %c
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}
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define i1 @length4_same_gt() nounwind {
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; CHECK-LABEL: length4_same_gt:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str1, i64 4) nounwind
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%c = icmp sgt i32 %m, 0
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ret i1 %c
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}
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define i1 @length4_same_le() nounwind {
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; CHECK-LABEL: length4_same_le:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movb $1, %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str1, i64 4) nounwind
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%c = icmp sle i32 %m, 0
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ret i1 %c
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}
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define i1 @length4_same_ge() nounwind {
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; CHECK-LABEL: length4_same_ge:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movb $1, %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str1, i64 4) nounwind
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%c = icmp sge i32 %m, 0
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ret i1 %c
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}
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define i32 @length4() nounwind {
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; CHECK-LABEL: length4:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl $-1, %eax
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str2, i64 4) nounwind
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ret i32 %m
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}
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define i1 @length4_lt() nounwind {
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; CHECK-LABEL: length4_lt:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movb $1, %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str2, i64 4) nounwind
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%c = icmp slt i32 %m, 0
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ret i1 %c
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}
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define i1 @length4_gt() nounwind {
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; CHECK-LABEL: length4_gt:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str2, i64 4) nounwind
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%c = icmp sgt i32 %m, 0
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ret i1 %c
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}
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define i1 @length4_le() nounwind {
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; CHECK-LABEL: length4_le:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movb $1, %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str2, i64 4) nounwind
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%c = icmp sle i32 %m, 0
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ret i1 %c
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}
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define i1 @length4_ge() nounwind {
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; CHECK-LABEL: length4_ge:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(ptr @.str1, ptr @.str2, i64 4) nounwind
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%c = icmp sge i32 %m, 0
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ret i1 %c
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}
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