mirror of
https://github.com/golang/go
synced 2024-11-20 06:54:42 -07:00
cmd/compile: optimize ARM code with NMULF/NMULD
NMULF and NMULD are efficient FP instructions, and the go compiler can use them to generate better code. The benchmark tests of my patch did not show general change, but big improvement in special cases. 1.A special test case improved 12.6%. https://github.com/benshi001/ugo1/blob/master/fpmul_test.go name old time/op new time/op delta FPMul-4 398µs ± 1% 348µs ± 1% -12.64% (p=0.000 n=40+40) 2. the compilecmp test showed little change. name old time/op new time/op delta Template 2.30s ± 1% 2.31s ± 1% ~ (p=0.754 n=17+19) Unicode 1.31s ± 3% 1.32s ± 5% ~ (p=0.265 n=20+20) GoTypes 7.73s ± 2% 7.73s ± 1% ~ (p=0.925 n=20+20) Compiler 37.0s ± 1% 37.3s ± 2% +0.79% (p=0.002 n=19+20) SSA 83.8s ± 4% 83.5s ± 2% ~ (p=0.964 n=20+17) Flate 1.43s ± 2% 1.44s ± 1% ~ (p=0.602 n=20+20) GoParser 1.82s ± 2% 1.81s ± 2% ~ (p=0.141 n=19+20) Reflect 5.08s ± 2% 5.08s ± 3% ~ (p=0.835 n=20+19) Tar 2.36s ± 1% 2.35s ± 1% ~ (p=0.195 n=18+17) XML 2.57s ± 2% 2.56s ± 1% ~ (p=0.283 n=20+17) [Geo mean] 4.74s 4.75s +0.05% name old user-time/op new user-time/op delta Template 2.75s ± 2% 2.75s ± 0% ~ (p=0.620 n=20+15) Unicode 1.59s ± 4% 1.60s ± 4% ~ (p=0.479 n=20+19) GoTypes 9.48s ± 1% 9.47s ± 1% ~ (p=0.743 n=20+20) Compiler 45.7s ± 1% 45.7s ± 1% ~ (p=0.482 n=19+20) SSA 109s ± 1% 109s ± 2% ~ (p=0.800 n=18+20) Flate 1.67s ± 3% 1.67s ± 3% ~ (p=0.598 n=19+18) GoParser 2.15s ± 4% 2.13s ± 3% ~ (p=0.153 n=20+20) Reflect 5.95s ± 2% 5.95s ± 2% ~ (p=0.961 n=19+20) Tar 2.93s ± 2% 2.92s ± 3% ~ (p=0.242 n=20+19) XML 3.02s ± 3% 3.04s ± 3% ~ (p=0.233 n=19+18) [Geo mean] 5.74s 5.74s -0.04% name old text-bytes new text-bytes delta HelloSize 588kB ± 0% 588kB ± 0% ~ (all equal) name old data-bytes new data-bytes delta HelloSize 5.46kB ± 0% 5.46kB ± 0% ~ (all equal) name old bss-bytes new bss-bytes delta HelloSize 72.9kB ± 0% 72.9kB ± 0% ~ (all equal) name old exe-bytes new exe-bytes delta HelloSize 1.03MB ± 0% 1.03MB ± 0% ~ (all equal) 3. The go1 benchmark showed little change in total. name old time/op new time/op delta BinaryTree17-4 41.8s ± 1% 41.8s ± 1% ~ (p=0.388 n=40+39) Fannkuch11-4 24.1s ± 1% 24.1s ± 1% ~ (p=0.077 n=40+40) FmtFprintfEmpty-4 834ns ± 1% 831ns ± 1% -0.31% (p=0.002 n=40+37) FmtFprintfString-4 1.34µs ± 1% 1.34µs ± 0% ~ (p=0.387 n=40+40) FmtFprintfInt-4 1.44µs ± 1% 1.44µs ± 1% ~ (p=0.421 n=40+40) FmtFprintfIntInt-4 2.09µs ± 0% 2.09µs ± 1% ~ (p=0.589 n=40+39) FmtFprintfPrefixedInt-4 2.32µs ± 1% 2.33µs ± 1% +0.15% (p=0.001 n=40+40) FmtFprintfFloat-4 4.51µs ± 0% 4.44µs ± 1% -1.50% (p=0.000 n=40+40) FmtManyArgs-4 7.94µs ± 0% 7.97µs ± 0% +0.36% (p=0.001 n=32+40) GobDecode-4 104ms ± 1% 102ms ± 2% -1.27% (p=0.000 n=39+37) GobEncode-4 90.5ms ± 1% 90.9ms ± 2% +0.40% (p=0.006 n=37+40) Gzip-4 4.10s ± 2% 4.08s ± 1% -0.30% (p=0.004 n=40+40) Gunzip-4 603ms ± 0% 602ms ± 1% ~ (p=0.303 n=37+40) HTTPClientServer-4 672µs ± 3% 658µs ± 2% -2.08% (p=0.000 n=39+37) JSONEncode-4 238ms ± 1% 239ms ± 0% +0.26% (p=0.001 n=40+25) JSONDecode-4 884ms ± 1% 885ms ± 1% +0.16% (p=0.012 n=40+40) Mandelbrot200-4 49.3ms ± 0% 49.3ms ± 0% ~ (p=0.588 n=40+38) GoParse-4 46.3ms ± 1% 46.4ms ± 2% ~ (p=0.487 n=40+40) RegexpMatchEasy0_32-4 1.28µs ± 1% 1.28µs ± 0% +0.12% (p=0.003 n=40+40) RegexpMatchEasy0_1K-4 7.78µs ± 5% 7.78µs ± 4% ~ (p=0.825 n=40+40) RegexpMatchEasy1_32-4 1.29µs ± 1% 1.29µs ± 0% ~ (p=0.659 n=40+40) RegexpMatchEasy1_1K-4 10.3µs ± 3% 10.4µs ± 2% ~ (p=0.266 n=40+40) RegexpMatchMedium_32-4 2.05µs ± 1% 2.05µs ± 0% -0.18% (p=0.002 n=40+28) RegexpMatchMedium_1K-4 533µs ± 1% 534µs ± 1% ~ (p=0.397 n=37+40) RegexpMatchHard_32-4 28.9µs ± 1% 28.9µs ± 1% -0.22% (p=0.002 n=40+40) RegexpMatchHard_1K-4 868µs ± 1% 870µs ± 1% +0.21% (p=0.015 n=40+40) Revcomp-4 67.3ms ± 1% 67.2ms ± 2% ~ (p=0.262 n=38+39) Template-4 1.07s ± 1% 1.07s ± 1% ~ (p=0.276 n=40+40) TimeParse-4 7.16µs ± 1% 7.16µs ± 1% ~ (p=0.610 n=39+40) TimeFormat-4 13.3µs ± 1% 13.3µs ± 1% ~ (p=0.617 n=38+40) [Geo mean] 720µs 719µs -0.13% name old speed new speed delta GobDecode-4 7.39MB/s ± 1% 7.49MB/s ± 2% +1.25% (p=0.000 n=39+38) GobEncode-4 8.48MB/s ± 1% 8.45MB/s ± 2% -0.40% (p=0.005 n=37+40) Gzip-4 4.74MB/s ± 2% 4.75MB/s ± 1% +0.30% (p=0.018 n=40+40) Gunzip-4 32.2MB/s ± 0% 32.2MB/s ± 1% ~ (p=0.272 n=36+40) JSONEncode-4 8.15MB/s ± 1% 8.13MB/s ± 0% -0.26% (p=0.003 n=40+25) JSONDecode-4 2.19MB/s ± 1% 2.19MB/s ± 1% ~ (p=0.676 n=40+40) GoParse-4 1.25MB/s ± 2% 1.25MB/s ± 2% ~ (p=0.823 n=40+40) RegexpMatchEasy0_32-4 25.1MB/s ± 1% 25.1MB/s ± 0% -0.12% (p=0.006 n=40+40) RegexpMatchEasy0_1K-4 132MB/s ± 5% 132MB/s ± 5% ~ (p=0.821 n=40+40) RegexpMatchEasy1_32-4 24.7MB/s ± 1% 24.7MB/s ± 0% ~ (p=0.630 n=40+40) RegexpMatchEasy1_1K-4 99.1MB/s ± 3% 98.8MB/s ± 2% ~ (p=0.268 n=40+40) RegexpMatchMedium_32-4 487kB/s ± 2% 490kB/s ± 0% +0.51% (p=0.001 n=40+40) RegexpMatchMedium_1K-4 1.92MB/s ± 1% 1.92MB/s ± 1% ~ (p=0.208 n=39+40) RegexpMatchHard_32-4 1.11MB/s ± 1% 1.11MB/s ± 0% +0.36% (p=0.000 n=40+33) RegexpMatchHard_1K-4 1.18MB/s ± 1% 1.18MB/s ± 1% ~ (p=0.207 n=40+37) Revcomp-4 37.8MB/s ± 1% 37.8MB/s ± 2% ~ (p=0.276 n=38+39) Template-4 1.82MB/s ± 1% 1.81MB/s ± 1% ~ (p=0.122 n=38+40) [Geo mean] 6.81MB/s 6.81MB/s +0.06% fixes #19843 Change-Id: Ief3a0c2b15f59d40c7b40f2784eeb71196685b59 Reviewed-on: https://go-review.googlesource.com/61150 Reviewed-by: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Ben Shi
Cherry Zhang
parent
538b4bab3d
commit
2899c3e8cb
@ -184,6 +184,8 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) {
|
||||
ssa.OpARMSUBD,
|
||||
ssa.OpARMMULF,
|
||||
ssa.OpARMMULD,
|
||||
ssa.OpARMNMULF,
|
||||
ssa.OpARMNMULD,
|
||||
ssa.OpARMDIVF,
|
||||
ssa.OpARMDIVD:
|
||||
r := v.Reg()
|
||||
|
||||
@ -850,6 +850,7 @@
|
||||
(SRAconst [c] (MOVWconst [d])) -> (MOVWconst [int64(int32(d)>>uint64(c))])
|
||||
(MUL (MOVWconst [c]) (MOVWconst [d])) -> (MOVWconst [int64(int32(c*d))])
|
||||
(MULA (MOVWconst [c]) (MOVWconst [d]) a) -> (ADDconst [int64(int32(c*d))] a)
|
||||
(MULS (MOVWconst [c]) (MOVWconst [d]) a) -> (SUBconst [int64(int32(c*d))] a)
|
||||
(Select0 (CALLudiv (MOVWconst [c]) (MOVWconst [d]))) -> (MOVWconst [int64(uint32(c)/uint32(d))])
|
||||
(Select1 (CALLudiv (MOVWconst [c]) (MOVWconst [d]))) -> (MOVWconst [int64(uint32(c)%uint32(d))])
|
||||
(ANDconst [c] (MOVWconst [d])) -> (MOVWconst [c&d])
|
||||
@ -1240,6 +1241,13 @@
|
||||
(SUB a (MUL x y)) && objabi.GOARM == 7 -> (MULS x y a)
|
||||
(RSB (MUL x y) a) && objabi.GOARM == 7 -> (MULS x y a)
|
||||
|
||||
(NEGF (MULF x y)) && objabi.GOARM >= 6 -> (NMULF x y)
|
||||
(NEGD (MULD x y)) && objabi.GOARM >= 6 -> (NMULD x y)
|
||||
(MULF (NEGF x) y) && objabi.GOARM >= 6 -> (NMULF x y)
|
||||
(MULD (NEGD x) y) && objabi.GOARM >= 6 -> (NMULD x y)
|
||||
(NMULF (NEGF x) y) -> (MULF x y)
|
||||
(NMULD (NEGD x) y) -> (MULD x y)
|
||||
|
||||
(AND x (MVN y)) -> (BIC x y)
|
||||
|
||||
// simplification with *shift ops
|
||||
|
||||
@ -170,14 +170,16 @@ func init() {
|
||||
{name: "MULA", argLength: 3, reg: gp31, asm: "MULA"}, // arg0 * arg1 + arg2
|
||||
{name: "MULS", argLength: 3, reg: gp31, asm: "MULS"}, // arg2 - arg0 * arg1
|
||||
|
||||
{name: "ADDF", argLength: 2, reg: fp21, asm: "ADDF", commutative: true}, // arg0 + arg1
|
||||
{name: "ADDD", argLength: 2, reg: fp21, asm: "ADDD", commutative: true}, // arg0 + arg1
|
||||
{name: "SUBF", argLength: 2, reg: fp21, asm: "SUBF"}, // arg0 - arg1
|
||||
{name: "SUBD", argLength: 2, reg: fp21, asm: "SUBD"}, // arg0 - arg1
|
||||
{name: "MULF", argLength: 2, reg: fp21, asm: "MULF", commutative: true}, // arg0 * arg1
|
||||
{name: "MULD", argLength: 2, reg: fp21, asm: "MULD", commutative: true}, // arg0 * arg1
|
||||
{name: "DIVF", argLength: 2, reg: fp21, asm: "DIVF"}, // arg0 / arg1
|
||||
{name: "DIVD", argLength: 2, reg: fp21, asm: "DIVD"}, // arg0 / arg1
|
||||
{name: "ADDF", argLength: 2, reg: fp21, asm: "ADDF", commutative: true}, // arg0 + arg1
|
||||
{name: "ADDD", argLength: 2, reg: fp21, asm: "ADDD", commutative: true}, // arg0 + arg1
|
||||
{name: "SUBF", argLength: 2, reg: fp21, asm: "SUBF"}, // arg0 - arg1
|
||||
{name: "SUBD", argLength: 2, reg: fp21, asm: "SUBD"}, // arg0 - arg1
|
||||
{name: "MULF", argLength: 2, reg: fp21, asm: "MULF", commutative: true}, // arg0 * arg1
|
||||
{name: "MULD", argLength: 2, reg: fp21, asm: "MULD", commutative: true}, // arg0 * arg1
|
||||
{name: "NMULF", argLength: 2, reg: fp21, asm: "NMULF", commutative: true}, // -(arg0 * arg1)
|
||||
{name: "NMULD", argLength: 2, reg: fp21, asm: "NMULD", commutative: true}, // -(arg0 * arg1)
|
||||
{name: "DIVF", argLength: 2, reg: fp21, asm: "DIVF"}, // arg0 / arg1
|
||||
{name: "DIVD", argLength: 2, reg: fp21, asm: "DIVD"}, // arg0 / arg1
|
||||
|
||||
{name: "AND", argLength: 2, reg: gp21, asm: "AND", commutative: true}, // arg0 & arg1
|
||||
{name: "ANDconst", argLength: 1, reg: gp11, asm: "AND", aux: "Int32"}, // arg0 & auxInt
|
||||
|
||||
@ -703,6 +703,8 @@ const (
|
||||
OpARMSUBD
|
||||
OpARMMULF
|
||||
OpARMMULD
|
||||
OpARMNMULF
|
||||
OpARMNMULD
|
||||
OpARMDIVF
|
||||
OpARMDIVD
|
||||
OpARMAND
|
||||
@ -8592,6 +8594,36 @@ var opcodeTable = [...]opInfo{
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "NMULF",
|
||||
argLen: 2,
|
||||
commutative: true,
|
||||
asm: arm.ANMULF,
|
||||
reg: regInfo{
|
||||
inputs: []inputInfo{
|
||||
{0, 4294901760}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15
|
||||
{1, 4294901760}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15
|
||||
},
|
||||
outputs: []outputInfo{
|
||||
{0, 4294901760}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "NMULD",
|
||||
argLen: 2,
|
||||
commutative: true,
|
||||
asm: arm.ANMULD,
|
||||
reg: regInfo{
|
||||
inputs: []inputInfo{
|
||||
{0, 4294901760}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15
|
||||
{1, 4294901760}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15
|
||||
},
|
||||
outputs: []outputInfo{
|
||||
{0, 4294901760}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "DIVF",
|
||||
argLen: 2,
|
||||
|
||||
@ -201,8 +201,12 @@ func rewriteValueARM(v *Value) bool {
|
||||
return rewriteValueARM_OpARMMUL_0(v) || rewriteValueARM_OpARMMUL_10(v) || rewriteValueARM_OpARMMUL_20(v)
|
||||
case OpARMMULA:
|
||||
return rewriteValueARM_OpARMMULA_0(v) || rewriteValueARM_OpARMMULA_10(v) || rewriteValueARM_OpARMMULA_20(v)
|
||||
case OpARMMULD:
|
||||
return rewriteValueARM_OpARMMULD_0(v)
|
||||
case OpARMMULF:
|
||||
return rewriteValueARM_OpARMMULF_0(v)
|
||||
case OpARMMULS:
|
||||
return rewriteValueARM_OpARMMULS_0(v) || rewriteValueARM_OpARMMULS_10(v)
|
||||
return rewriteValueARM_OpARMMULS_0(v) || rewriteValueARM_OpARMMULS_10(v) || rewriteValueARM_OpARMMULS_20(v)
|
||||
case OpARMMVN:
|
||||
return rewriteValueARM_OpARMMVN_0(v)
|
||||
case OpARMMVNshiftLL:
|
||||
@ -217,6 +221,14 @@ func rewriteValueARM(v *Value) bool {
|
||||
return rewriteValueARM_OpARMMVNshiftRL_0(v)
|
||||
case OpARMMVNshiftRLreg:
|
||||
return rewriteValueARM_OpARMMVNshiftRLreg_0(v)
|
||||
case OpARMNEGD:
|
||||
return rewriteValueARM_OpARMNEGD_0(v)
|
||||
case OpARMNEGF:
|
||||
return rewriteValueARM_OpARMNEGF_0(v)
|
||||
case OpARMNMULD:
|
||||
return rewriteValueARM_OpARMNMULD_0(v)
|
||||
case OpARMNMULF:
|
||||
return rewriteValueARM_OpARMNMULF_0(v)
|
||||
case OpARMNotEqual:
|
||||
return rewriteValueARM_OpARMNotEqual_0(v)
|
||||
case OpARMOR:
|
||||
@ -9573,6 +9585,88 @@ func rewriteValueARM_OpARMMULA_20(v *Value) bool {
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMMULD_0(v *Value) bool {
|
||||
// match: (MULD (NEGD x) y)
|
||||
// cond: objabi.GOARM >= 6
|
||||
// result: (NMULD x y)
|
||||
for {
|
||||
_ = v.Args[1]
|
||||
v_0 := v.Args[0]
|
||||
if v_0.Op != OpARMNEGD {
|
||||
break
|
||||
}
|
||||
x := v_0.Args[0]
|
||||
y := v.Args[1]
|
||||
if !(objabi.GOARM >= 6) {
|
||||
break
|
||||
}
|
||||
v.reset(OpARMNMULD)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
// match: (MULD y (NEGD x))
|
||||
// cond: objabi.GOARM >= 6
|
||||
// result: (NMULD x y)
|
||||
for {
|
||||
_ = v.Args[1]
|
||||
y := v.Args[0]
|
||||
v_1 := v.Args[1]
|
||||
if v_1.Op != OpARMNEGD {
|
||||
break
|
||||
}
|
||||
x := v_1.Args[0]
|
||||
if !(objabi.GOARM >= 6) {
|
||||
break
|
||||
}
|
||||
v.reset(OpARMNMULD)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMMULF_0(v *Value) bool {
|
||||
// match: (MULF (NEGF x) y)
|
||||
// cond: objabi.GOARM >= 6
|
||||
// result: (NMULF x y)
|
||||
for {
|
||||
_ = v.Args[1]
|
||||
v_0 := v.Args[0]
|
||||
if v_0.Op != OpARMNEGF {
|
||||
break
|
||||
}
|
||||
x := v_0.Args[0]
|
||||
y := v.Args[1]
|
||||
if !(objabi.GOARM >= 6) {
|
||||
break
|
||||
}
|
||||
v.reset(OpARMNMULF)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
// match: (MULF y (NEGF x))
|
||||
// cond: objabi.GOARM >= 6
|
||||
// result: (NMULF x y)
|
||||
for {
|
||||
_ = v.Args[1]
|
||||
y := v.Args[0]
|
||||
v_1 := v.Args[1]
|
||||
if v_1.Op != OpARMNEGF {
|
||||
break
|
||||
}
|
||||
x := v_1.Args[0]
|
||||
if !(objabi.GOARM >= 6) {
|
||||
break
|
||||
}
|
||||
v.reset(OpARMNMULF)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMMULS_0(v *Value) bool {
|
||||
b := v.Block
|
||||
_ = b
|
||||
@ -10055,6 +10149,30 @@ func rewriteValueARM_OpARMMULS_10(v *Value) bool {
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMMULS_20(v *Value) bool {
|
||||
// match: (MULS (MOVWconst [c]) (MOVWconst [d]) a)
|
||||
// cond:
|
||||
// result: (SUBconst [int64(int32(c*d))] a)
|
||||
for {
|
||||
_ = v.Args[2]
|
||||
v_0 := v.Args[0]
|
||||
if v_0.Op != OpARMMOVWconst {
|
||||
break
|
||||
}
|
||||
c := v_0.AuxInt
|
||||
v_1 := v.Args[1]
|
||||
if v_1.Op != OpARMMOVWconst {
|
||||
break
|
||||
}
|
||||
d := v_1.AuxInt
|
||||
a := v.Args[2]
|
||||
v.reset(OpARMSUBconst)
|
||||
v.AuxInt = int64(int32(c * d))
|
||||
v.AddArg(a)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMMVN_0(v *Value) bool {
|
||||
// match: (MVN (MOVWconst [c]))
|
||||
// cond:
|
||||
@ -10272,6 +10390,120 @@ func rewriteValueARM_OpARMMVNshiftRLreg_0(v *Value) bool {
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMNEGD_0(v *Value) bool {
|
||||
// match: (NEGD (MULD x y))
|
||||
// cond: objabi.GOARM >= 6
|
||||
// result: (NMULD x y)
|
||||
for {
|
||||
v_0 := v.Args[0]
|
||||
if v_0.Op != OpARMMULD {
|
||||
break
|
||||
}
|
||||
_ = v_0.Args[1]
|
||||
x := v_0.Args[0]
|
||||
y := v_0.Args[1]
|
||||
if !(objabi.GOARM >= 6) {
|
||||
break
|
||||
}
|
||||
v.reset(OpARMNMULD)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMNEGF_0(v *Value) bool {
|
||||
// match: (NEGF (MULF x y))
|
||||
// cond: objabi.GOARM >= 6
|
||||
// result: (NMULF x y)
|
||||
for {
|
||||
v_0 := v.Args[0]
|
||||
if v_0.Op != OpARMMULF {
|
||||
break
|
||||
}
|
||||
_ = v_0.Args[1]
|
||||
x := v_0.Args[0]
|
||||
y := v_0.Args[1]
|
||||
if !(objabi.GOARM >= 6) {
|
||||
break
|
||||
}
|
||||
v.reset(OpARMNMULF)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMNMULD_0(v *Value) bool {
|
||||
// match: (NMULD (NEGD x) y)
|
||||
// cond:
|
||||
// result: (MULD x y)
|
||||
for {
|
||||
_ = v.Args[1]
|
||||
v_0 := v.Args[0]
|
||||
if v_0.Op != OpARMNEGD {
|
||||
break
|
||||
}
|
||||
x := v_0.Args[0]
|
||||
y := v.Args[1]
|
||||
v.reset(OpARMMULD)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
// match: (NMULD y (NEGD x))
|
||||
// cond:
|
||||
// result: (MULD x y)
|
||||
for {
|
||||
_ = v.Args[1]
|
||||
y := v.Args[0]
|
||||
v_1 := v.Args[1]
|
||||
if v_1.Op != OpARMNEGD {
|
||||
break
|
||||
}
|
||||
x := v_1.Args[0]
|
||||
v.reset(OpARMMULD)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMNMULF_0(v *Value) bool {
|
||||
// match: (NMULF (NEGF x) y)
|
||||
// cond:
|
||||
// result: (MULF x y)
|
||||
for {
|
||||
_ = v.Args[1]
|
||||
v_0 := v.Args[0]
|
||||
if v_0.Op != OpARMNEGF {
|
||||
break
|
||||
}
|
||||
x := v_0.Args[0]
|
||||
y := v.Args[1]
|
||||
v.reset(OpARMMULF)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
// match: (NMULF y (NEGF x))
|
||||
// cond:
|
||||
// result: (MULF x y)
|
||||
for {
|
||||
_ = v.Args[1]
|
||||
y := v.Args[0]
|
||||
v_1 := v.Args[1]
|
||||
if v_1.Op != OpARMNEGF {
|
||||
break
|
||||
}
|
||||
x := v_1.Args[0]
|
||||
v.reset(OpARMMULF)
|
||||
v.AddArg(x)
|
||||
v.AddArg(y)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
func rewriteValueARM_OpARMNotEqual_0(v *Value) bool {
|
||||
// match: (NotEqual (FlagEQ))
|
||||
// cond:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user