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Switch the canonical FMA term operand order to match both the comment I wrote and the usual LLVM convention.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157708 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2012-05-30 18:54:50 +00:00
parent 85ef6f4c99
commit f917d20561
2 changed files with 2 additions and 2 deletions
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2
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -5771,7 +5771,7 @@ SDValue DAGCombiner::visitFMA(SDNode *N) {
return DAG.getNode(ISD::FADD, N->getDebugLoc(), VT, N0, N2); return DAG.getNode(ISD::FADD, N->getDebugLoc(), VT, N0, N2);
// Canonicalize (fma c, x, y) -> (fma x, c, y) // Canonicalize (fma c, x, y) -> (fma x, c, y)
if (!N0CFP && N1CFP) if (N0CFP && !N1CFP)
return DAG.getNode(ISD::FMA, N->getDebugLoc(), VT, N1, N0, N2); return DAG.getNode(ISD::FMA, N->getDebugLoc(), VT, N1, N0, N2);
return SDValue(); return SDValue();

2
test/CodeGen/ARM/fusedMAC.ll
View File

@ -192,7 +192,7 @@ define float @test_fma_const_fold(float %a, float %b) nounwind {
define float @test_fma_canonicalize(float %a, float %b) nounwind { define float @test_fma_canonicalize(float %a, float %b) nounwind {
; CHECK: test_fma_canonicalize ; CHECK: test_fma_canonicalize
; CHECK: vmov.f32 s0 ; CHECK: vmov.f32 s0
; CHECK: vfma.f32 s2, s0, s1 ; CHECK: vfma.f32 s2, s1, s0
%ret = call float @llvm.fma.f32(float 2.0, float %a, float %b) %ret = call float @llvm.fma.f32(float 2.0, float %a, float %b)
ret float %ret ret float %ret
} }