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Diffstat (limited to 'test/CodeGen/X86/warn-stack.ll')
| -rw-r--r-- | test/CodeGen/X86/warn-stack.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/CodeGen/X86/warn-stack.ll b/test/CodeGen/X86/warn-stack.ll new file mode 100644 index 0000000000..5979f45b07 --- /dev/null +++ b/test/CodeGen/X86/warn-stack.ll @@ -0,0 +1,24 @@ +; RUN: llc -mtriple x86_64-apple-macosx10.8.0 -warn-stack-size=80 < %s 2>&1 >/dev/null | FileCheck %s +; Check the internal option that warns when the stack size exceeds the +; given amount. +; <rdar://13987214> + +; CHECK-NOT: nowarn +define void @nowarn() nounwind ssp { +entry: + %buffer = alloca [12 x i8], align 1 + %arraydecay = getelementptr inbounds [12 x i8]* %buffer, i64 0, i64 0 + call void @doit(i8* %arraydecay) nounwind + ret void +} + +; CHECK: warning: Stack size limit exceeded (104) in warn. +define void @warn() nounwind ssp { +entry: + %buffer = alloca [80 x i8], align 1 + %arraydecay = getelementptr inbounds [80 x i8]* %buffer, i64 0, i64 0 + call void @doit(i8* %arraydecay) nounwind + ret void +} + +declare void @doit(i8*) |