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| author | Chris Lattner <sabre@nondot.org> | 2009-02-12 07:06:42 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-02-12 07:06:42 +0000 |
| commit | af9985c6b9d066cb70a0363fed699022d0ec196c (patch) | |
| tree | 7f90188dc6cb669c9d4787150dd9292df8c2f602 /test | |
| parent | 0aefc0eb2ce18937351348f2aa3d74f27923b8f8 (diff) | |
| download | external_llvm-af9985c6b9d066cb70a0363fed699022d0ec196c.zip external_llvm-af9985c6b9d066cb70a0363fed699022d0ec196c.tar.gz external_llvm-af9985c6b9d066cb70a0363fed699022d0ec196c.tar.bz2 | |
Fix a nasty bug (PR3550) where the inline pass could incorrectly mark
calls with the tail marker when inlining them through an invoke. Patch,
testcase, and perfect analysis by Jay Foad!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64364 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/Inline/inline-invoke-tail.ll | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/Transforms/Inline/inline-invoke-tail.ll b/test/Transforms/Inline/inline-invoke-tail.ll new file mode 100644 index 0000000..53f755e --- /dev/null +++ b/test/Transforms/Inline/inline-invoke-tail.ll @@ -0,0 +1,35 @@ +; RUN: llvm-as < %s | opt -inline | llvm-dis | not grep {tail call void @llvm.memcpy.i32} +; PR3550 + +define internal void @foo(i32* %p, i32* %q) { + %pp = bitcast i32* %p to i8* + %qq = bitcast i32* %q to i8* + tail call void @llvm.memcpy.i32(i8* %pp, i8* %qq, i32 4, i32 1) + ret void +} + +declare void @llvm.memcpy.i32(i8* nocapture, i8* nocapture, i32, i32) nounwind + +define i32 @main() { + %a = alloca i32 ; <i32*> [#uses=3] + %b = alloca i32 ; <i32*> [#uses=2] + store i32 1, i32* %a, align 4 + store i32 0, i32* %b, align 4 + invoke void @foo(i32* %a, i32* %b) + to label %invcont unwind label %lpad + +invcont: + %retval = load i32* %a, align 4 + ret i32 %retval + +lpad: + %eh_ptr = call i8* @llvm.eh.exception() + %eh_select = call i32 (i8*, i8*, ...)* @llvm.eh.selector.i32(i8* %eh_ptr, i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i8* null) + unreachable +} + +declare i8* @llvm.eh.exception() nounwind + +declare i32 @llvm.eh.selector.i32(i8*, i8*, ...) nounwind + +declare i32 @__gxx_personality_v0(...) |