llvm-6502/test/CodeGen/X86/dagcombine-buildvector.ll
Mon P Wang 93b7415f4c 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
2009-03-17 06:33:10 +00:00

13 lines
501 B
LLVM

; 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
}