[llvm-commits] [llvm] r173401 - in /llvm/trunk: lib/Target/Mips/MipsInstrFPU.td test/CodeGen/Mips/brdelayslot.ll
Akira Hatanaka
ahatanaka at mips.com
Thu Jan 24 16:20:39 PST 2013
Author: ahatanak
Date: Thu Jan 24 18:20:39 2013
New Revision: 173401
URL: http://llvm.org/viewvc/llvm-project?rev=173401&view=rev
Log:
[mips] Set flag neverHasSideEffects flag on some of the floating point instructions.
Modified:
llvm/trunk/lib/Target/Mips/MipsInstrFPU.td
llvm/trunk/test/CodeGen/Mips/brdelayslot.ll
Modified: llvm/trunk/lib/Target/Mips/MipsInstrFPU.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsInstrFPU.td?rev=173401&r1=173400&r2=173401&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsInstrFPU.td (original)
+++ llvm/trunk/lib/Target/Mips/MipsInstrFPU.td Thu Jan 24 18:20:39 2013
@@ -107,7 +107,8 @@
class ABSS_FT<string opstr, RegisterClass DstRC, RegisterClass SrcRC,
InstrItinClass Itin, SDPatternOperator OpNode= null_frag> :
InstSE<(outs DstRC:$fd), (ins SrcRC:$fs), !strconcat(opstr, "\t$fd, $fs"),
- [(set DstRC:$fd, (OpNode SrcRC:$fs))], Itin, FrmFR>;
+ [(set DstRC:$fd, (OpNode SrcRC:$fs))], Itin, FrmFR>,
+ NeverHasSideEffects;
multiclass ABSS_M<string opstr, InstrItinClass Itin,
SDPatternOperator OpNode= null_frag> {
@@ -213,15 +214,13 @@
def TRUNC_W_S : ABSS_FT<"trunc.w.s", FGR32, FGR32, IIFcvt>, ABSS_FM<0xd, 16>;
def CEIL_W_S : ABSS_FT<"ceil.w.s", FGR32, FGR32, IIFcvt>, ABSS_FM<0xe, 16>;
def FLOOR_W_S : ABSS_FT<"floor.w.s", FGR32, FGR32, IIFcvt>, ABSS_FM<0xf, 16>;
-def CVT_W_S : ABSS_FT<"cvt.w.s", FGR32, FGR32, IIFcvt>, ABSS_FM<0x24, 16>,
- NeverHasSideEffects;
+def CVT_W_S : ABSS_FT<"cvt.w.s", FGR32, FGR32, IIFcvt>, ABSS_FM<0x24, 16>;
defm ROUND_W : ROUND_M<"round.w.d", IIFcvt>, ABSS_FM<0xc, 17>;
defm TRUNC_W : ROUND_M<"trunc.w.d", IIFcvt>, ABSS_FM<0xd, 17>;
defm CEIL_W : ROUND_M<"ceil.w.d", IIFcvt>, ABSS_FM<0xe, 17>;
defm FLOOR_W : ROUND_M<"floor.w.d", IIFcvt>, ABSS_FM<0xf, 17>;
-defm CVT_W : ROUND_M<"cvt.w.d", IIFcvt>, ABSS_FM<0x24, 17>,
- NeverHasSideEffects;
+defm CVT_W : ROUND_M<"cvt.w.d", IIFcvt>, ABSS_FM<0x24, 17>;
let Predicates = [IsFP64bit, HasStdEnc], DecoderNamespace = "Mips64" in {
def ROUND_L_S : ABSS_FT<"round.l.s", FGR64, FGR32, IIFcvt>, ABSS_FM<0x8, 16>;
@@ -238,19 +237,16 @@
}
def CVT_S_W : ABSS_FT<"cvt.s.w", FGR32, FGR32, IIFcvt>, ABSS_FM<0x20, 20>;
-def CVT_L_S : ABSS_FT<"cvt.l.s", FGR64, FGR32, IIFcvt>, ABSS_FM<0x25, 16>,
- NeverHasSideEffects;
-def CVT_L_D64: ABSS_FT<"cvt.l.d", FGR64, FGR64, IIFcvt>, ABSS_FM<0x25, 17>,
- NeverHasSideEffects;
+def CVT_L_S : ABSS_FT<"cvt.l.s", FGR64, FGR32, IIFcvt>, ABSS_FM<0x25, 16>;
+def CVT_L_D64: ABSS_FT<"cvt.l.d", FGR64, FGR64, IIFcvt>, ABSS_FM<0x25, 17>;
-let Predicates = [NotFP64bit, HasStdEnc], neverHasSideEffects = 1 in {
+let Predicates = [NotFP64bit, HasStdEnc] in {
def CVT_S_D32 : ABSS_FT<"cvt.s.d", FGR32, AFGR64, IIFcvt>, ABSS_FM<0x20, 17>;
def CVT_D32_W : ABSS_FT<"cvt.d.w", AFGR64, FGR32, IIFcvt>, ABSS_FM<0x21, 20>;
def CVT_D32_S : ABSS_FT<"cvt.d.s", AFGR64, FGR32, IIFcvt>, ABSS_FM<0x21, 16>;
}
-let Predicates = [IsFP64bit, HasStdEnc], DecoderNamespace = "Mips64",
- neverHasSideEffects = 1 in {
+let Predicates = [IsFP64bit, HasStdEnc], DecoderNamespace = "Mips64" in {
def CVT_S_D64 : ABSS_FT<"cvt.s.d", FGR32, FGR64, IIFcvt>, ABSS_FM<0x20, 17>;
def CVT_S_L : ABSS_FT<"cvt.s.l", FGR32, FGR64, IIFcvt>, ABSS_FM<0x20, 21>;
def CVT_D64_W : ABSS_FT<"cvt.d.w", FGR64, FGR32, IIFcvt>, ABSS_FM<0x21, 20>;
Modified: llvm/trunk/test/CodeGen/Mips/brdelayslot.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/Mips/brdelayslot.ll?rev=173401&r1=173400&r2=173401&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/Mips/brdelayslot.ll (original)
+++ llvm/trunk/test/CodeGen/Mips/brdelayslot.ll Thu Jan 24 18:20:39 2013
@@ -67,3 +67,16 @@
ret void
}
+; Check that delay slot filler can place mov.s or mov.d in delay slot.
+;
+; Default: foo6:
+; Default-NOT: nop
+
+define void @foo6(float %a0, double %a1) nounwind {
+entry:
+ tail call void @foo7(double %a1, float %a0) nounwind
+ ret void
+}
+
+declare void @foo7(double, float)
+
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