| ; Test that storage for allocas with disjoint lifetimes is reused with |
| ; use-after-scope. |
| |
| ; RUN: opt -S -passes=hwasan %s -hwasan-use-after-scope -o - | \ |
| ; RUN: llc -no-stack-coloring=false -o - | \ |
| ; RUN: FileCheck %s --check-prefix=COLOR |
| ; RUN: opt -S -passes=hwasan -hwasan-use-after-scope %s -o - | \ |
| ; RUN: llc -no-stack-coloring=true -o - | \ |
| ; RUN: FileCheck %s --check-prefix=NOCOLOR |
| |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64-unknown-linux-android29" |
| |
| ; REQUIRES: aarch64-registered-target |
| |
| ; COLOR: sub sp, sp, #240 |
| ; NOCOLOR: sub sp, sp, #368 |
| |
| define i32 @myCall_w2(i32 %in) sanitize_hwaddress { |
| entry: |
| %a = alloca [17 x i8*], align 8 |
| %a2 = alloca [16 x i8*], align 8 |
| %b = bitcast [17 x i8*]* %a to i8* |
| %b2 = bitcast [16 x i8*]* %a2 to i8* |
| call void @llvm.lifetime.start.p0i8(i64 136, i8* %b) |
| %t1 = call i32 @foo(i32 %in, i8* %b) |
| %t2 = call i32 @foo(i32 %in, i8* %b) |
| call void @llvm.lifetime.end.p0i8(i64 136, i8* %b) |
| call void @llvm.lifetime.start.p0i8(i64 128, i8* %b2) |
| %t3 = call i32 @foo(i32 %in, i8* %b2) |
| %t4 = call i32 @foo(i32 %in, i8* %b2) |
| call void @llvm.lifetime.end.p0i8(i64 128, i8* %b2) |
| %t5 = add i32 %t1, %t2 |
| %t6 = add i32 %t3, %t4 |
| %t7 = add i32 %t5, %t6 |
| ret i32 %t7 |
| } |
| |
| declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) nounwind |
| |
| declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) nounwind |
| |
| declare i32 @foo(i32, i8*) |
