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| author | Andrew Trick <atrick@apple.com> | 2011-10-15 06:19:55 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2011-10-15 06:19:55 +0000 |
| commit | 365c9f1ff55bef134c6b9707f7df44d680ddabea (patch) | |
| tree | edc2f1c2fa2fa67906158462fba8d4a8c96ccfab /test/Transforms | |
| parent | 569c4a4767428d7b489db1e634ced5a3b36d8a1d (diff) | |
| download | external_llvm-365c9f1ff55bef134c6b9707f7df44d680ddabea.zip external_llvm-365c9f1ff55bef134c6b9707f7df44d680ddabea.tar.gz external_llvm-365c9f1ff55bef134c6b9707f7df44d680ddabea.tar.bz2 | |
Fix SCEVExpander assert during LSR: "argument of incompatible type".
Just because we're dealing with a GEP doesn't mean we can assert the
SCEV has a pointer type. The fix is simply to ignore the SCEV pointer
type, which we really didn't need.
Fixes PR11138 webkit crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142058 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/LoopStrengthReduce/2011-10-14-IntPtr.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/Transforms/LoopStrengthReduce/2011-10-14-IntPtr.ll b/test/Transforms/LoopStrengthReduce/2011-10-14-IntPtr.ll new file mode 100644 index 0000000..60cc7a5 --- /dev/null +++ b/test/Transforms/LoopStrengthReduce/2011-10-14-IntPtr.ll @@ -0,0 +1,27 @@ +; RUN: opt -loop-reduce -S < %s | FileCheck %s +; +; Test SCEVExpander reusing a phi->gep->phi IV when SCEV "wrongly" +; reports the expression as an IntegerTy. + +target triple = "x86_64-apple-darwin" + +; CHECK: @test +; CHECK: phi +; CHECK-NOT: phi +define void @test(i32 %rowStride) ssp align 2 { +entry: + %cond = select i1 undef, i32 %rowStride, i32 4 + br label %for.end + +for.end.critedge: ; preds = %for.end + br label %for.end + +for.end: ; preds = %for.end.critedge, %entry + br i1 undef, label %for.body83, label %for.end.critedge + +for.body83: ; preds = %for.body83, %for.end + %ptr.0157 = phi i8* [ %add.ptr96, %for.body83 ], [ null, %for.end ] + store i8 undef, i8* %ptr.0157, align 1 + %add.ptr96 = getelementptr inbounds i8* %ptr.0157, i32 %cond + br label %for.body83 +} |