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