diff options
| 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 | cbfe9df0966e333d78b2eb972171cd00856f45f0 (patch) | |
| tree | 6936703a6dfa887827a12a594a7a2ecf16dae293 /llvm/test | |
| parent | a57c3abf3709f7849154adf78d13cb849cd7e4c2 (diff) | |
| download | bcm5719-llvm-cbfe9df0966e333d78b2eb972171cd00856f45f0.tar.gz bcm5719-llvm-cbfe9df0966e333d78b2eb972171cd00856f45f0.zip | |
Avoid deferencing use_begin() if value does not have a use.
llvm-svn: 69836
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll b/llvm/test/Transforms/IndVarSimplify/2009-04-22-IndvarCrash.ll new file mode 100644 index 00000000000..e42f3b33354 --- /dev/null +++ b/llvm/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 +} |
