diff options
Diffstat (limited to 'llvm/test/Transforms/JumpThreading/2011-04-02-SimplifyDeadBlock.ll')
| -rw-r--r-- | llvm/test/Transforms/JumpThreading/2011-04-02-SimplifyDeadBlock.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/llvm/test/Transforms/JumpThreading/2011-04-02-SimplifyDeadBlock.ll b/llvm/test/Transforms/JumpThreading/2011-04-02-SimplifyDeadBlock.ll new file mode 100644 index 00000000000..76dd2d12bde --- /dev/null +++ b/llvm/test/Transforms/JumpThreading/2011-04-02-SimplifyDeadBlock.ll @@ -0,0 +1,32 @@ +; RUN: opt < %s -jump-threading +; PR9446 +; Just check that it doesn't crash + +define void @int327() nounwind { +entry: + unreachable + +for.cond: ; preds = %for.cond4 + %tobool3 = icmp eq i8 undef, 0 + br i1 %tobool3, label %for.cond23, label %for.cond4 + +for.cond4: ; preds = %for.cond + br label %for.cond + +for.cond23: ; preds = %for.body28, %for.cond23, %for.cond + %conv321 = phi i32 [ %conv32, %for.body28 ], [ 0, %for.cond ], [ %conv321, %for.cond23 ] + %l_266.0 = phi i32 [ %phitmp, %for.body28 ], [ 0, %for.cond ], [ 0, %for.cond23 ] + %cmp26 = icmp eq i32 %l_266.0, 0 + br i1 %cmp26, label %for.body28, label %for.cond23 + +for.body28: ; preds = %for.cond23 + %and = and i32 %conv321, 1 + %conv32 = zext i8 undef to i32 + %add = add nsw i32 %l_266.0, 1 + %phitmp = and i32 %add, 255 + br label %for.cond23 + +if.end43: ; No predecessors! + ret void +} + |
