derek.holloway
7502bf64a4
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62 lines
2.8 KiB
LLVM
62 lines
2.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
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; RUN: opt -S -passes=expand-memcmp -mtriple=x86_64-unknown-unknown < %s | FileCheck %s
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;
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; Verify that ExpandMemCmp does not expand memcmp calls in functions with
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; sanitizer attributes, so sanitizer interceptors can catch memory errors.
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declare i32 @memcmp(ptr nocapture, ptr nocapture, i64)
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define i32 @cmp_asan(ptr nocapture readonly %x, ptr nocapture readonly %y) sanitize_address {
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; CHECK-LABEL: define i32 @cmp_asan(
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; CHECK-SAME: ptr readonly captures(none) [[X:%.*]], ptr readonly captures(none) [[Y:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @memcmp(ptr [[X]], ptr [[Y]], i64 4)
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; CHECK-NEXT: ret i32 [[CALL]]
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;
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%call = tail call i32 @memcmp(ptr %x, ptr %y, i64 4)
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ret i32 %call
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}
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define i32 @cmp_msan(ptr nocapture readonly %x, ptr nocapture readonly %y) sanitize_memory {
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; CHECK-LABEL: define i32 @cmp_msan(
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; CHECK-SAME: ptr readonly captures(none) [[X:%.*]], ptr readonly captures(none) [[Y:%.*]]) #[[ATTR1:[0-9]+]] {
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; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @memcmp(ptr [[X]], ptr [[Y]], i64 4)
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; CHECK-NEXT: ret i32 [[CALL]]
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;
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%call = tail call i32 @memcmp(ptr %x, ptr %y, i64 4)
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ret i32 %call
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}
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define i32 @cmp_tsan(ptr nocapture readonly %x, ptr nocapture readonly %y) sanitize_thread {
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; CHECK-LABEL: define i32 @cmp_tsan(
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; CHECK-SAME: ptr readonly captures(none) [[X:%.*]], ptr readonly captures(none) [[Y:%.*]]) #[[ATTR2:[0-9]+]] {
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; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @memcmp(ptr [[X]], ptr [[Y]], i64 4)
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; CHECK-NEXT: ret i32 [[CALL]]
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;
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%call = tail call i32 @memcmp(ptr %x, ptr %y, i64 4)
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ret i32 %call
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}
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define i32 @cmp_hwasan(ptr nocapture readonly %x, ptr nocapture readonly %y) sanitize_hwaddress {
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; CHECK-LABEL: define i32 @cmp_hwasan(
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; CHECK-SAME: ptr readonly captures(none) [[X:%.*]], ptr readonly captures(none) [[Y:%.*]]) #[[ATTR3:[0-9]+]] {
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; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @memcmp(ptr [[X]], ptr [[Y]], i64 4)
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; CHECK-NEXT: ret i32 [[CALL]]
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;
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%call = tail call i32 @memcmp(ptr %x, ptr %y, i64 4)
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ret i32 %call
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}
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define i32 @cmp_no_sanitizer(ptr nocapture readonly %x, ptr nocapture readonly %y) {
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; CHECK-LABEL: define i32 @cmp_no_sanitizer(
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; CHECK-SAME: ptr readonly captures(none) [[X:%.*]], ptr readonly captures(none) [[Y:%.*]]) {
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; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[X]], align 1
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; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[Y]], align 1
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; CHECK-NEXT: [[TMP3:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP1]])
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; CHECK-NEXT: [[TMP4:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP2]])
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; CHECK-NEXT: [[TMP5:%.*]] = call i32 @llvm.ucmp.i32.i32(i32 [[TMP3]], i32 [[TMP4]])
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; CHECK-NEXT: ret i32 [[TMP5]]
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;
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%call = tail call i32 @memcmp(ptr %x, ptr %y, i64 4)
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ret i32 %call
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}
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