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llvm-mirror/test/CodeGen/PowerPC/vcmp-fold.ll
Matthias Braun b3a8585bc1 PowerPC: 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.

This patch:
- Removes -march if the .ll file already has a matching `target triple`
  directive or -mtriple argument.
- In all other cases changes -march=ppc32/-march=ppc64 to
  -mtriple=ppc32--/-mtriple=ppc64--

See also the discussion in https://reviews.llvm.org/D35287

llvm-svn: 309754
2017-08-01 22:20:41 +00:00

23 lines
1.1 KiB
LLVM

; This should fold the "vcmpbfp." and "vcmpbfp" instructions into a single
; "vcmpbfp.".
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -mcpu=g5 | grep vcmpbfp | count 1
define void @test(<4 x float>* %x, <4 x float>* %y, i32* %P) {
entry:
%tmp = load <4 x float>, <4 x float>* %x ; <<4 x float>> [#uses=1]
%tmp2 = load <4 x float>, <4 x float>* %y ; <<4 x float>> [#uses=1]
%tmp.upgrd.1 = call i32 @llvm.ppc.altivec.vcmpbfp.p( i32 1, <4 x float> %tmp, <4 x float> %tmp2 ) ; <i32> [#uses=1]
%tmp4 = load <4 x float>, <4 x float>* %x ; <<4 x float>> [#uses=1]
%tmp6 = load <4 x float>, <4 x float>* %y ; <<4 x float>> [#uses=1]
%tmp.upgrd.2 = call <4 x i32> @llvm.ppc.altivec.vcmpbfp( <4 x float> %tmp4, <4 x float> %tmp6 ) ; <<4 x i32>> [#uses=1]
%tmp7 = bitcast <4 x i32> %tmp.upgrd.2 to <4 x float> ; <<4 x float>> [#uses=1]
store <4 x float> %tmp7, <4 x float>* %x
store i32 %tmp.upgrd.1, i32* %P
ret void
}
declare i32 @llvm.ppc.altivec.vcmpbfp.p(i32, <4 x float>, <4 x float>)
declare <4 x i32> @llvm.ppc.altivec.vcmpbfp(<4 x float>, <4 x float>)