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| author | Chris Lattner <sabre@nondot.org> | 2009-04-10 16:38:36 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-04-10 16:38:36 +0000 |
| commit | d990f57a4171a26b5c1b4e3b63581fe54fa11ad7 (patch) | |
| tree | bfd39852fe00a67b06c4b7945a1c68953a23b7aa /test | |
| parent | b646b51e9fb0d5faf8f3705cc1d0eab54afb782f (diff) | |
| download | external_llvm-d990f57a4171a26b5c1b4e3b63581fe54fa11ad7.zip external_llvm-d990f57a4171a26b5c1b4e3b63581fe54fa11ad7.tar.gz external_llvm-d990f57a4171a26b5c1b4e3b63581fe54fa11ad7.tar.bz2 | |
fix two problems with machine sinking:
1. Sinking would crash when the first instruction of a block was
sunk due to iterator problems.
2. Instructions could be sunk to their current block, causing an
infinite loop.
This fixes PR3968
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68787 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/Generic/2009-04-10-SinkCrash.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/Generic/2009-04-10-SinkCrash.ll b/test/CodeGen/Generic/2009-04-10-SinkCrash.ll new file mode 100644 index 0000000..3637a06 --- /dev/null +++ b/test/CodeGen/Generic/2009-04-10-SinkCrash.ll @@ -0,0 +1,16 @@ +; RUN: llvm-as < %s | llc + +define void @QRiterate(i32 %p.1, double %tmp.212) nounwind { +entry: + br i1 false, label %shortcirc_next.1, label %exit.1.critedge + +shortcirc_next.1: ; preds = %shortcirc_next.1, %entry + %tmp.213 = fcmp une double %tmp.212, 0.000000e+00 ; <i1> [#uses=1] + br i1 %tmp.213, label %shortcirc_next.1, label %exit.1 + +exit.1.critedge: ; preds = %entry + ret void + +exit.1: ; preds = %shortcirc_next.1 + ret void +} |