xref: /llvm-project/llvm/test/Transforms/SafeStack/X86/sink-to-use.ll (revision 3bd517205799a152689434ceddf9493765f1e883) 
1; Test that unsafe alloca address calculation is done immediately before each use.
2; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
3; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
4; RUN: opt -passes=safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
5; RUN: opt -passes=safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
6
7define void @f() safestack {
8entry:
9  %x0 = alloca i32, align 4
10  %x1 = alloca i32, align 4
11
12; CHECK: %[[A:.*]] = getelementptr i8, ptr %{{.*}}, i32 -4
13; CHECK: call void @use(ptr %[[A]])
14  call void @use(ptr %x0)
15
16; CHECK: %[[B:.*]] = getelementptr i8, ptr %{{.*}}, i32 -8
17; CHECK: call void @use(ptr %[[B]])
18  call void @use(ptr %x1)
19  ret void
20}
21
22declare void @use(ptr)
23