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| author | Tanya Lattner <tonic@nondot.org> | 2009-09-04 19:26:38 +0000 |
|---|---|---|
| committer | Tanya Lattner <tonic@nondot.org> | 2009-09-04 19:26:38 +0000 |
| commit | 61d5bb69960d1f876ba150dfc311592e172371f2 (patch) | |
| tree | f442a3679e921ebb50e500e9e4f51c2fd3f71c7c /test | |
| parent | 15c0e3ee5d13e6686583fc6b9e504d0dcfb793c1 (diff) | |
Merge 80768 from mainline.
fix PR4815: some cases where DeleteDeadInstruction can delete
the instruction BBI points to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_26@81029 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/DeadStoreElimination/crash.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/Transforms/DeadStoreElimination/crash.ll b/test/Transforms/DeadStoreElimination/crash.ll new file mode 100644 index 0000000000..b35bd1aa5c --- /dev/null +++ b/test/Transforms/DeadStoreElimination/crash.ll @@ -0,0 +1,26 @@ +; RUN: llvm-as < %s | opt -dse | llvm-dis + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "i386-apple-darwin10.0" + +@g80 = external global i8 ; <i8*> [#uses=3] + +declare signext i8 @foo(i8 signext, i8 signext) nounwind readnone ssp + +declare i32 @func68(i32) nounwind readonly ssp + +; PR4815 +define void @test1(i32 %int32p54) noreturn nounwind ssp { +entry: + br label %bb + +bb: ; preds = %bb, %entry + %storemerge = phi i8 [ %2, %bb ], [ 1, %entry ] ; <i8> [#uses=1] + store i8 %storemerge, i8* @g80 + %0 = tail call i32 @func68(i32 1) nounwind ssp ; <i32> [#uses=1] + %1 = trunc i32 %0 to i8 ; <i8> [#uses=1] + store i8 %1, i8* @g80, align 1 + store i8 undef, i8* @g80, align 1 + %2 = tail call signext i8 @foo(i8 signext undef, i8 signext 1) nounwind ; <i8> [#uses=1] + br label %bb +} |