Changes in directory llvm/lib/Target/ARM:
ARMISelDAGToDAG.cpp updated: 1.110 -> 1.111
ARMInstrVFP.td updated: 1.1 -> 1.2
---
Log message:
match a reassociated form of fnmul. This implements CodeGen/ARM/fnmul.ll
---
Diffs of the changes: (+9 -2)
ARMISelDAGToDAG.cpp | 1 +
ARMInstrVFP.td | 10 ++++++++--
2 files changed, 9 insertions(+), 2 deletions(-)
Index: llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
diff -u llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp:1.110
llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp:1.111
--- llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp:1.110 Mon Mar 19 02:48:02 2007
+++ llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp Wed May 2 19:32:00 2007
@@ -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;
Index: llvm/lib/Target/ARM/ARMInstrVFP.td
diff -u llvm/lib/Target/ARM/ARMInstrVFP.td:1.1
llvm/lib/Target/ARM/ARMInstrVFP.td:1.2
--- llvm/lib/Target/ARM/ARMInstrVFP.td:1.1 Fri Jan 19 01:51:42 2007
+++ llvm/lib/Target/ARM/ARMInstrVFP.td Wed May 2 19:32:00 2007
@@ -139,8 +139,7 @@
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 @@
"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))]>;
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