1; Regression test for a compiler bug that caused a crash when instrumenting code 2; using musttail. 3 4; RUN: opt -S -passes=hwasan -hwasan-use-stack-safety=0 %s -o - | FileCheck %s 5 6target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" 7target triple = "aarch64" 8 9define dso_local noundef i32 @_Z3bari(i32 noundef %0) sanitize_hwaddress { 10 %2 = alloca i32, align 4 11 store i32 %0, ptr %2, align 4 12 %3 = load i32, ptr %2, align 4 13 ret i32 %3 14} 15 16define dso_local noundef i32 @_Z3fooi(i32 noundef %0) sanitize_hwaddress { 17 %2 = alloca i32, align 4 18 %3 = alloca i32, align 4 19 store i32 %0, ptr %2, align 4 20 store volatile i32 5, ptr %3, align 4 21 %4 = load i32, ptr %2, align 4 22 %5 = load volatile i32, ptr %3, align 4 23 %6 = add nsw i32 %4, %5 24 ; Check we untag before the musttail. 25 ; CHECK: call void @llvm.memset.p0.i64 26 ; CHECK: musttail call 27 ; CHECK-NOT: call void @llvm.memset.p0.i64 28 %7 = musttail call noundef i32 @_Z3bari(i32 noundef %6) 29 ret i32 %7 30} 31