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| author | Nadav Rotem <nrotem@apple.com> | 2012-10-25 21:52:52 +0000 |
|---|---|---|
| committer | Nadav Rotem <nrotem@apple.com> | 2012-10-25 21:52:52 +0000 |
| commit | 4f3c676102bc69f10920d05313ac71cb180ecc75 (patch) | |
| tree | 77dda5322dce03c0419c4c078a2dd93e58abfc23 /test | |
| parent | ec13022c392747ef166e6be738fc6f00bd7c52d3 (diff) | |
| download | llvm-4f3c676102bc69f10920d05313ac71cb180ecc75.tar.gz llvm-4f3c676102bc69f10920d05313ac71cb180ecc75.tar.bz2 llvm-4f3c676102bc69f10920d05313ac71cb180ecc75.tar.xz | |
Fix a crash in ValueTracking. Add support for vectors of pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166726 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstCombine/2012-10-25-vector-of-pointers.ll | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2012-10-25-vector-of-pointers.ll b/test/Transforms/InstCombine/2012-10-25-vector-of-pointers.ll new file mode 100644 index 0000000000..20ea282687 --- /dev/null +++ b/test/Transforms/InstCombine/2012-10-25-vector-of-pointers.ll @@ -0,0 +1,51 @@ +; RUN: opt < %s -instcombine -S + +; Make sure that we don't crash when optimizing the vectors of pointers. + +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" +target triple = "x86_64-apple-macosx10.8.0" + +%struct.hoge = type { double*, double*, double*, double** } + +define void @widget(%struct.hoge* nocapture %arg) nounwind uwtable ssp { +bb: + %tmp = getelementptr inbounds %struct.hoge* %arg, i64 0, i32 0 + br i1 undef, label %bb1, label %bb17 + +bb1: ; preds = %bb + br i1 undef, label %bb2, label %bb3 + +bb2: ; preds = %bb1 + br label %bb17 + +bb3: ; preds = %bb1 + %tmp4 = bitcast double** %tmp to <2 x double*>* + %tmp5 = load <2 x double*>* %tmp4, align 8 + %tmp6 = ptrtoint <2 x double*> %tmp5 to <2 x i64> + %tmp7 = sub <2 x i64> zeroinitializer, %tmp6 + %tmp8 = ashr exact <2 x i64> %tmp7, <i64 3, i64 3> + %tmp9 = extractelement <2 x i64> %tmp8, i32 0 + %tmp10 = add nsw i64 undef, %tmp9 + br i1 undef, label %bb11, label %bb12 + +bb11: ; preds = %bb3 + br label %bb13 + +bb12: ; preds = %bb3 + br label %bb13 + +bb13: ; preds = %bb12, %bb11 + br i1 undef, label %bb16, label %bb14 + +bb14: ; preds = %bb13 + br i1 undef, label %bb16, label %bb15 + +bb15: ; preds = %bb14 + br label %bb16 + +bb16: ; preds = %bb15, %bb14, %bb13 + unreachable + +bb17: ; preds = %bb2, %bb + ret void +} |