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| author | Nick Lewycky <nicholas@mxc.ca> | 2009-08-15 20:12:18 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2009-08-15 20:12:18 +0000 |
| commit | 071d84e1094e532ea7313c7e7a2c1f106f1d424c (patch) | |
| tree | aca6cbecc7126b935424782959329aa8191c9fcd /test | |
| parent | bf230bf5ccd073c85b7a19dcf899031415171cec (diff) | |
| download | llvm-071d84e1094e532ea7313c7e7a2c1f106f1d424c.tar.gz llvm-071d84e1094e532ea7313c7e7a2c1f106f1d424c.tar.bz2 llvm-071d84e1094e532ea7313c7e7a2c1f106f1d424c.tar.xz | |
SSI construction should just go ahead and ignore instructions in unreachable
blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79132 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/SSI/2009-08-15-UnreachableBB.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/Transforms/SSI/2009-08-15-UnreachableBB.ll b/test/Transforms/SSI/2009-08-15-UnreachableBB.ll new file mode 100644 index 0000000000..11a4f60b15 --- /dev/null +++ b/test/Transforms/SSI/2009-08-15-UnreachableBB.ll @@ -0,0 +1,19 @@ +; RUN: llvm-as < %s | opt -ssi-everything -disable-output + +declare fastcc i32 @ras_Empty(i8** nocapture) nounwind readonly + +define i32 @cc_Tautology() nounwind { +entry: + unreachable + +cc_InitData.exit: ; No predecessors! + %0 = call fastcc i32 @ras_Empty(i8** undef) nounwind ; <i32> [#uses=1] + %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1] + br i1 %1, label %bb2, label %bb6 + +bb2: ; preds = %cc_InitData.exit + unreachable + +bb6: ; preds = %cc_InitData.exit + ret i32 undef +} |