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| author | Chris Lattner <sabre@nondot.org> | 2008-12-13 18:39:44 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-12-13 18:39:44 +0000 |
| commit | 38b0e3d7f15779873b9da26c1b184608c5a20896 (patch) | |
| tree | 35edeb98fbd77d0cafb9a90889119642e25c2f7d /test/Transforms/GVN | |
| parent | 8072c7b5a9bf980cacff9dc4073e7311ab70d60a (diff) | |
| download | external_llvm-38b0e3d7f15779873b9da26c1b184608c5a20896.zip external_llvm-38b0e3d7f15779873b9da26c1b184608c5a20896.tar.gz external_llvm-38b0e3d7f15779873b9da26c1b184608c5a20896.tar.bz2 | |
gvn should never crash on this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60987 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/GVN')
| -rw-r--r-- | test/Transforms/GVN/2008-12-12-RLE-Crash.ll | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/Transforms/GVN/2008-12-12-RLE-Crash.ll b/test/Transforms/GVN/2008-12-12-RLE-Crash.ll new file mode 100644 index 0000000..99fadc7 --- /dev/null +++ b/test/Transforms/GVN/2008-12-12-RLE-Crash.ll @@ -0,0 +1,35 @@ +; RUN: llvm-as < %s | opt -gvn | 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-darwin7" + +define i32 @main(i32 %argc, i8** %argv) nounwind { +entry: + br label %bb84 + +bb41: ; preds = %bb82 + %tmp = load i8* %opt.0, align 1 ; <i8> [#uses=0] + %tmp1 = getelementptr i8* %opt.0, i32 1 ; <i8*> [#uses=2] + switch i32 0, label %bb81 [ + i32 102, label %bb82 + i32 110, label %bb79 + i32 118, label %bb80 + ] + +bb79: ; preds = %bb41 + br label %bb82 + +bb80: ; preds = %bb41 + ret i32 0 + +bb81: ; preds = %bb41 + ret i32 1 + +bb82: ; preds = %bb84, %bb79, %bb41 + %opt.0 = phi i8* [ %tmp3, %bb84 ], [ %tmp1, %bb79 ], [ %tmp1, %bb41 ] ; <i8*> [#uses=3] + %tmp2 = load i8* %opt.0, align 1 ; <i8> [#uses=0] + br i1 false, label %bb84, label %bb41 + +bb84: ; preds = %bb82, %entry + %tmp3 = getelementptr i8* null, i32 1 ; <i8*> [#uses=1] + br label %bb82 +} |