Add support for fmul node of type v4f32.
void %foo(<4 x float> * %a) {
entry:
%tmp1 = load <4 x float> * %a;
%tmp2 = mul <4 x float> %tmp1, %tmp1
store <4 x float> %tmp2, <4 x float> *%a
ret void
}
Is selected to:
_foo:
li r2, 0
lvx v0, r2, r3
vxor v1, v1, v1
vmaddfp v0, v0, v0, v1
stvx v0, r2, r3
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24701 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCInstrFormats.td b/lib/Target/PowerPC/PPCInstrFormats.td
index 96c969b..8b28e5f 100644
--- a/lib/Target/PowerPC/PPCInstrFormats.td
+++ b/lib/Target/PowerPC/PPCInstrFormats.td
@@ -602,6 +602,14 @@
let Inst{21-31} = xo;
}
+class VXForm_setzero<bits<11> xo, dag OL, string asmstr,
+ InstrItinClass itin, list<dag> pattern>
+ : VXForm_1<xo, OL, asmstr, itin, pattern> {
+ let VA = VD;
+ let VB = VD;
+}
+
+
class VXForm_2<bits<11> xo, dag OL, string asmstr,
InstrItinClass itin, list<dag> pattern>
: I<4, OL, asmstr, itin> {
diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td
index 3ea0920..1a30985 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/lib/Target/PowerPC/PPCInstrInfo.td
@@ -897,6 +897,16 @@
def VSUBFP : VXForm_1<74, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
"vsubfp $vD, $vA, $vB", VecFP,
[(set VRRC:$vD, (fsub VRRC:$vA, VRRC:$vB))]>;
+def VXOR : VXForm_1<1220, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
+ "vxor $vD, $vA, $vB", VecFP,
+ []>;
+
+// VX-Form Pseudo Instructions
+
+def V_SET0 : VXForm_setzero<1220, (ops VRRC:$vD),
+ "vxor $vD, $vD, $vD", VecFP,
+ []>;
+
//===----------------------------------------------------------------------===//
// PowerPC Instruction Patterns
@@ -951,6 +961,9 @@
def : Pat<(add GPRC:$in, (PPChi tconstpool:$g, 0)),
(ADDIS GPRC:$in, tconstpool:$g)>;
+def : Pat<(fmul VRRC:$vA, VRRC:$vB),
+ (VMADDFP VRRC:$vA, (V_SET0), VRRC:$vB)>;
+
// Fused multiply add and multiply sub for packed float. These are represented
// separately from the real instructions above, for operations that must have
// the additional precision, such as Newton-Rhapson (used by divide, sqrt)