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Diffstat (limited to 'test/Transforms/PruneEH/seh-nounwind.ll')
| -rw-r--r-- | test/Transforms/PruneEH/seh-nounwind.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/Transforms/PruneEH/seh-nounwind.ll b/test/Transforms/PruneEH/seh-nounwind.ll new file mode 100644 index 0000000..4b69ae4 --- /dev/null +++ b/test/Transforms/PruneEH/seh-nounwind.ll @@ -0,0 +1,31 @@ +; RUN: opt -S -prune-eh < %s | FileCheck %s + +; Don't remove invokes of nounwind functions if the personality handles async +; exceptions. The @div function in this test can fault, even though it can't +; throw a synchronous exception. + +define i32 @div(i32 %n, i32 %d) nounwind { +entry: + %div = sdiv i32 %n, %d + ret i32 %div +} + +define i32 @main() nounwind { +entry: + %call = invoke i32 @div(i32 10, i32 0) + to label %__try.cont unwind label %lpad + +lpad: + %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) + catch i8* null + br label %__try.cont + +__try.cont: + %retval.0 = phi i32 [ %call, %entry ], [ 0, %lpad ] + ret i32 %retval.0 +} + +; CHECK-LABEL: define i32 @main() +; CHECK: invoke i32 @div(i32 10, i32 0) + +declare i32 @__C_specific_handler(...) |