diff options
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize/nsw-crash.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/nsw-crash.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/nsw-crash.ll b/llvm/test/Transforms/LoopVectorize/nsw-crash.ll new file mode 100644 index 00000000000..5b3658fb0de --- /dev/null +++ b/llvm/test/Transforms/LoopVectorize/nsw-crash.ll @@ -0,0 +1,24 @@ +; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 + +target datalayout = +"e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" + +define void @test() { +entry: + br i1 undef, label %while.end, label %while.body.lr.ph + +while.body.lr.ph: + br label %while.body + +while.body: + %it.sroa.0.091 = phi i32* [ undef, %while.body.lr.ph ], [ %incdec.ptr.i, %while.body ] + %incdec.ptr.i = getelementptr inbounds i32, i32* %it.sroa.0.091, i64 1 + %inc32 = add i32 undef, 1 ; <------------- Make sure we don't set NSW flags to the undef. + %cmp.i11 = icmp eq i32* %incdec.ptr.i, undef + br i1 %cmp.i11, label %while.end, label %while.body + +while.end: + ret void +} + + |
