From dc13d2ed2feb3fd9d4953a1dd49d6a93d6867bc5 Mon Sep 17 00:00:00 2001 From: Lang Hames Date: Thu, 21 Jun 2012 06:10:00 +0000 Subject: Add a missing llvm.fma -> VFNMS pattern to the ARM backend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158902 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/ARM/ARMInstrVFP.td | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'lib/Target') diff --git a/lib/Target/ARM/ARMInstrVFP.td b/lib/Target/ARM/ARMInstrVFP.td index dccbffa..4e2cda4 100644 --- a/lib/Target/ARM/ARMInstrVFP.td +++ b/lib/Target/ARM/ARMInstrVFP.td @@ -1207,6 +1207,14 @@ def : Pat<(fsub_mlx (fmul_su SPR:$a, SPR:$b), SPR:$dstin), Requires<[HasVFP4,DontUseNEONForFP,UseFusedMAC]>; // Match @llvm.fma.* intrinsics + +// (fma x, y, (fneg z)) -> (vfnms z, x, y)) +def : Pat<(f64 (fma DPR:$Dn, DPR:$Dm, (fneg DPR:$Ddin))), + (VFNMSD DPR:$Ddin, DPR:$Dn, DPR:$Dm)>, + Requires<[HasVFP4]>; +def : Pat<(f32 (fma SPR:$Sn, SPR:$Sm, (fneg SPR:$Sdin))), + (VFNMSS SPR:$Sdin, SPR:$Sn, SPR:$Sm)>, + Requires<[HasVFP4]>; // (fneg (fma (fneg x), y, z)) -> (vfnms z, x, y) def : Pat<(fneg (f64 (fma (fneg DPR:$Dn), DPR:$Dm, DPR:$Ddin))), (VFNMSD DPR:$Ddin, DPR:$Dn, DPR:$Dm)>, -- cgit v1.1