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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2012-12-19 14:34:28 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2012-12-19 14:34:28 +0000 |
| commit | 35d346294128038794637b384fcc5f97ff3d9978 (patch) | |
| tree | f0cb8a7e0df6a0b442aab42a73ca14734b309bfa /test/Transforms/LoopVectorize/X86/no-vector.ll | |
| parent | f9a6bd8524ba16d3e4036304ffdc9475df6844f2 (diff) | |
| download | external_llvm-35d346294128038794637b384fcc5f97ff3d9978.tar.gz external_llvm-35d346294128038794637b384fcc5f97ff3d9978.tar.bz2 external_llvm-35d346294128038794637b384fcc5f97ff3d9978.zip | |
Make TargetLowering::getTypeConversion more resilient against odd illegal MVTs.
- An MVT can become an EVT when being split (e.g. v2i8 -> v1i8, the latter doesn't exist)
- Return the scalar value when an MVT is scalarized (v1i64 -> i64)
Fixes PR14639ff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170546 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/LoopVectorize/X86/no-vector.ll')
| -rw-r--r-- | test/Transforms/LoopVectorize/X86/no-vector.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/LoopVectorize/X86/no-vector.ll b/test/Transforms/LoopVectorize/X86/no-vector.ll new file mode 100644 index 0000000000..692eec9895 --- /dev/null +++ b/test/Transforms/LoopVectorize/X86/no-vector.ll @@ -0,0 +1,22 @@ +; RUN: opt -S -mtriple=i386-unknown-freebsd -mcpu=i486 -loop-vectorize < %s + +define i32 @PR14639(i8* nocapture %s, i32 %len) nounwind { +entry: + %cmp4 = icmp sgt i32 %len, 0 + br i1 %cmp4, label %for.body, label %for.end + +for.body: ; preds = %entry, %for.body + %i.06 = phi i32 [ %inc, %for.body ], [ 0, %entry ] + %r.05 = phi i32 [ %xor, %for.body ], [ 0, %entry ] + %arrayidx = getelementptr inbounds i8* %s, i32 %i.06 + %0 = load i8* %arrayidx, align 1 + %conv = sext i8 %0 to i32 + %xor = xor i32 %conv, %r.05 + %inc = add nsw i32 %i.06, 1 + %exitcond = icmp eq i32 %inc, %len + br i1 %exitcond, label %for.end, label %for.body + +for.end: ; preds = %for.body, %entry + %r.0.lcssa = phi i32 [ 0, %entry ], [ %xor, %for.body ] + ret i32 %r.0.lcssa +} |