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| author | Chris Lattner <sabre@nondot.org> | 2007-05-03 00:32:00 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-05-03 00:32:00 +0000 |
| commit | 72939126d43901e3d922535be4e12ef8ebf31611 (patch) | |
| tree | aab0ed5c15ad679c2c0ccd039291ef9ab80e5079 /lib/Target/ARM | |
| parent | f972db0f4f7a7a46ea88c7c6f2e9f2a34f512ae9 (diff) | |
| download | external_llvm-72939126d43901e3d922535be4e12ef8ebf31611.zip external_llvm-72939126d43901e3d922535be4e12ef8ebf31611.tar.gz external_llvm-72939126d43901e3d922535be4e12ef8ebf31611.tar.bz2 | |
match a reassociated form of fnmul. This implements CodeGen/ARM/fnmul.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36660 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM')
| -rw-r--r-- | lib/Target/ARM/ARMISelDAGToDAG.cpp | 1 | ||||
| -rw-r--r-- | lib/Target/ARM/ARMInstrVFP.td | 10 |
2 files changed, 9 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp index 8108ee4..79d5869 100644 --- a/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -27,6 +27,7 @@ #include "llvm/CodeGen/SelectionDAGISel.h" #include "llvm/CodeGen/SSARegMap.h" #include "llvm/Target/TargetLowering.h" +#include "llvm/Target/TargetOptions.h" #include "llvm/Support/Debug.h" using namespace llvm; diff --git a/lib/Target/ARM/ARMInstrVFP.td b/lib/Target/ARM/ARMInstrVFP.td index cac8e44..671e1a4 100644 --- a/lib/Target/ARM/ARMInstrVFP.td +++ b/lib/Target/ARM/ARMInstrVFP.td @@ -139,8 +139,7 @@ def FMULD : ADI<(ops DPR:$dst, DPR:$a, DPR:$b), def FMULS : ASI<(ops SPR:$dst, SPR:$a, SPR:$b), "fmuls $dst, $a, $b", [(set SPR:$dst, (fmul SPR:$a, SPR:$b))]>; - - + def FNMULD : ADI<(ops DPR:$dst, DPR:$a, DPR:$b), "fnmuld $dst, $a, $b", [(set DPR:$dst, (fneg (fmul DPR:$a, DPR:$b)))]>; @@ -149,6 +148,13 @@ def FNMULS : ASI<(ops SPR:$dst, SPR:$a, SPR:$b), "fnmuls $dst, $a, $b", [(set SPR:$dst, (fneg (fmul SPR:$a, SPR:$b)))]>; +// Match reassociated forms only if not sign dependent rounding. +def : Pat<(fmul (fneg DPR:$a), DPR:$b), + (FNMULD DPR:$a, DPR:$b)>, Requires<[NoHonorSignDependentRounding]>; +def : Pat<(fmul (fneg SPR:$a), SPR:$b), + (FNMULS SPR:$a, SPR:$b)>, Requires<[NoHonorSignDependentRounding]>; + + def FSUBD : ADI<(ops DPR:$dst, DPR:$a, DPR:$b), "fsubd $dst, $a, $b", [(set DPR:$dst, (fsub DPR:$a, DPR:$b))]>; |