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DAG legalisation can now handle illegal fma vector types by scalarisation

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159092 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Pete Cooper
2012-06-24 00:05:44 +00:00
parent c82b9a51a2
commit b49998d76c
4 changed files with 46 additions and 0 deletions
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12
test/CodeGen/ARM/fusedMAC.ll
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@@ -206,7 +206,19 @@ define float @test_fma_canonicalize(float %a, float %b) nounwind {
ret float %ret
}
; Check that very wide vector fma's can be split into legal fma's.
define void @test_fma_v8f32(<8 x float> %a, <8 x float> %b, <8 x float> %c, <8 x float>* %p) nounwind readnone ssp {
; CHECK: test_fma_v8f32
; CHECK: vfma.f32
; CHECK: vfma.f32
entry:
%call = tail call <8 x float> @llvm.fma.v8f32(<8 x float> %a, <8 x float> %b, <8 x float> %c) nounwind readnone
store <8 x float> %call, <8 x float>* %p, align 16
ret void
}
declare float @llvm.fma.f32(float, float, float) nounwind readnone
declare double @llvm.fma.f64(double, double, double) nounwind readnone
declare <2 x float> @llvm.fma.v2f32(<2 x float>, <2 x float>, <2 x float>) nounwind readnone
declare <8 x float> @llvm.fma.v8f32(<8 x float>, <8 x float>, <8 x float>) nounwind readnone