diff options
| author | Richard Osborne <richard@xmos.com> | 2011-08-24 13:32:43 +0000 |
|---|---|---|
| committer | Richard Osborne <richard@xmos.com> | 2011-08-24 13:32:43 +0000 |
| commit | 8f9c5cca4feb71471dda44d9ba39a0ca644ddd6e (patch) | |
| tree | 2131bf8ff367cddba88d44f7ccd78f870f1c2581 /test/CodeGen/XCore | |
| parent | 13894fa135d33151072ddf5e80abe4540ec2afcd (diff) | |
| download | llvm-8f9c5cca4feb71471dda44d9ba39a0ca644ddd6e.tar.gz llvm-8f9c5cca4feb71471dda44d9ba39a0ca644ddd6e.tar.bz2 llvm-8f9c5cca4feb71471dda44d9ba39a0ca644ddd6e.tar.xz | |
Add Uses=[SP] to call instructions. This fixes a miscompilation with a
variable sized alloca.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138433 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/XCore')
| -rw-r--r-- | test/CodeGen/XCore/2011-08-01-DynamicAllocBug.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/XCore/2011-08-01-DynamicAllocBug.ll b/test/CodeGen/XCore/2011-08-01-DynamicAllocBug.ll new file mode 100644 index 0000000000..7d6d7bac3d --- /dev/null +++ b/test/CodeGen/XCore/2011-08-01-DynamicAllocBug.ll @@ -0,0 +1,20 @@ +; RUN: llc < %s -march=xcore | FileCheck %s + +declare void @g() +declare i8* @llvm.stacksave() nounwind +declare void @llvm.stackrestore(i8*) nounwind + +define void @f(i32** %p, i32 %size) { +allocas: + %0 = call i8* @llvm.stacksave() + %a = alloca i32, i32 %size + store i32* %a, i32** %p + call void @g() + call void @llvm.stackrestore(i8* %0) + ret void +} +; CHECK: f: +; CHECK: ldaw [[REGISTER:r[0-9]+]], {{r[0-9]+}}[-r1] +; CHECK: set sp, [[REGISTER]] +; CHECK extsp 1 +; CHECK bl g |