diff options
| author | Mon P Wang <wangmp@apple.com> | 2009-03-17 06:33:10 +0000 |
|---|---|---|
| committer | Mon P Wang <wangmp@apple.com> | 2009-03-17 06:33:10 +0000 |
| commit | 93b7415f4cc9a83126f1d89b2d2f51a204b09dd6 (patch) | |
| tree | 9bc0c6a8ca568a2e02e546727f985548fdd5fac7 /test/CodeGen/X86/dagcombine-buildvector.ll | |
| parent | 9626447e70a3c8dc88b09f84414ee416a39518b1 (diff) | |
Fix a problem with DAGCombine where we were building an illegal build
vector shuffle mask. Forced the mask to be built using i32. Note: this will
be irrelevant once vector_shuffle no longer takes a build vector for the
shuffle mask.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67076 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/dagcombine-buildvector.ll')
| -rw-r--r-- | test/CodeGen/X86/dagcombine-buildvector.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGen/X86/dagcombine-buildvector.ll b/test/CodeGen/X86/dagcombine-buildvector.ll new file mode 100644 index 0000000000..2ca4177919 --- /dev/null +++ b/test/CodeGen/X86/dagcombine-buildvector.ll @@ -0,0 +1,13 @@ +; RUN: llvm-as < %s | llc -march=x86 -o %t -f +; RUN: grep unpcklpd %t | count 1 +; RUN: grep movapd %t | count 1 + +; Shows a dag combine bug that will generate an illegal build vector +; with v2i64 build_vector i32, i32. + +define void @test(<2 x double>* %dst, <4 x double> %src) { +entry: + %tmp7.i = shufflevector <4 x double> %src, <4 x double> undef, <2 x i32> < i32 0, i32 2 > + store <2 x double> %tmp7.i, <2 x double>* %dst + ret void +}
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