diff options
Diffstat (limited to 'test')
-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 0000000..2ca4177 --- /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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