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llvm-project/llvm/test/CodeGen/X86/2012-07-10-shufnorm.ll

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X86: Do not use llc -march in tests. `llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309774
2017-08-02 08:28:10 +08:00
; RUN: llc < %s -mtriple=i686-- -mcpu=corei7 -mattr=+avx | FileCheck %s
Add a dagcombine optimization to convert concat_vectors of undefs into a single undef. The unoptimized concat_vectors isd prevented the canonicalization of the vector_shuffle node. llvm-svn: 160221
2012-07-15 05:30:27 +08:00
; CHECK: ocl
define void @ocl() {
entry:
%vext = shufflevector <2 x double> zeroinitializer, <2 x double> undef, <8 x i32> <i32 0, i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
%vecinit = shufflevector <8 x double> %vext, <8 x double> undef, <8 x i32> <i32 0, i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
%vecinit1 = insertelement <8 x double> %vecinit, double undef, i32 2
%vecinit3 = insertelement <8 x double> %vecinit1, double undef, i32 3
%vecinit5 = insertelement <8 x double> %vecinit3, double 0.000000e+00, i32 4
%vecinit9 = shufflevector <8 x double> %vecinit5, <8 x double> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 8, i32 9, i32 10>
store <8 x double> %vecinit9, <8 x double>* undef
ret void
; CHECK: vxorps
; CHECK: ret
}