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| author | Evan Cheng <evan.cheng@apple.com> | 2009-04-22 22:45:37 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-04-22 22:45:37 +0000 |
| commit | 1abe64663e0865cf9bdc23de734df49acea2b0d4 (patch) | |
| tree | 8cf2fb3ad9733301ea675367b367846a4f83d4ba /test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll | |
| parent | 5654613a013b94a92f9ed65e1a2f34e0a8d9cfdf (diff) | |
| download | external_llvm-1abe64663e0865cf9bdc23de734df49acea2b0d4.zip external_llvm-1abe64663e0865cf9bdc23de734df49acea2b0d4.tar.gz external_llvm-1abe64663e0865cf9bdc23de734df49acea2b0d4.tar.bz2 | |
Avoid deferencing use_begin() if value does not have a use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69836 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll')
| -rw-r--r-- | test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll b/test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll new file mode 100644 index 0000000..e42f3b3 --- /dev/null +++ b/test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll @@ -0,0 +1,17 @@ +; RUN: llvm-as < %s | opt -indvars + +define i32 @t() nounwind ssp { +entry: + br label %bb32 + +bb32: ; preds = %bb32, %entry + %mbPartIdx.0.reg2mem.0 = phi i8 [ %2, %bb32 ], [ 0, %entry ] ; <i8> [#uses=3] + %0 = and i8 %mbPartIdx.0.reg2mem.0, 1 ; <i8> [#uses=0] + %1 = zext i8 %mbPartIdx.0.reg2mem.0 to i64 ; <i64> [#uses=0] + %2 = add i8 %mbPartIdx.0.reg2mem.0, 1 ; <i8> [#uses=2] + %3 = icmp ugt i8 %2, 3 ; <i1> [#uses=1] + br i1 %3, label %bb41, label %bb32 + +bb41: ; preds = %bb32 + ret i32 0 +} |