31 lines
990 B
LLVM
31 lines
990 B
LLVM
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; Regression test for a compiler bug that caused a crash when instrumenting code
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; using musttail.
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; RUN: opt -S -passes=hwasan -hwasan-use-stack-safety=0 %s -o - | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64"
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define dso_local noundef i32 @_Z3bari(i32 noundef %0) sanitize_hwaddress {
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%2 = alloca i32, align 4
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store i32 %0, ptr %2, align 4
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%3 = load i32, ptr %2, align 4
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ret i32 %3
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}
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define dso_local noundef i32 @_Z3fooi(i32 noundef %0) sanitize_hwaddress {
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%2 = alloca i32, align 4
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%3 = alloca i32, align 4
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store i32 %0, ptr %2, align 4
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store volatile i32 5, ptr %3, align 4
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%4 = load i32, ptr %2, align 4
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%5 = load volatile i32, ptr %3, align 4
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%6 = add nsw i32 %4, %5
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; Check we untag before the musttail.
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; CHECK: call void @llvm.memset.p0.i64
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; CHECK: musttail call
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; CHECK-NOT: call void @llvm.memset.p0.i64
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%7 = musttail call noundef i32 @_Z3bari(i32 noundef %6)
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ret i32 %7
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}
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