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path: root/src/cmd/compile/internal/ssa/gen/ARMOps.go
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Diffstat (limited to 'src/cmd/compile/internal/ssa/gen/ARMOps.go')
-rw-r--r--src/cmd/compile/internal/ssa/gen/ARMOps.go66
1 files changed, 32 insertions, 34 deletions
diff --git a/src/cmd/compile/internal/ssa/gen/ARMOps.go b/src/cmd/compile/internal/ssa/gen/ARMOps.go
index 865dc1034e..f1774c6be0 100644
--- a/src/cmd/compile/internal/ssa/gen/ARMOps.go
+++ b/src/cmd/compile/internal/ssa/gen/ARMOps.go
@@ -61,7 +61,6 @@ var regNamesARM = []string{
"F15", // tmp
// pseudo-registers
- "FLAGS",
"SB",
}
@@ -93,42 +92,40 @@ func init() {
gpsp = gp | buildReg("SP")
gpspg = gpg | buildReg("SP")
gpspsbg = gpspg | buildReg("SB")
- flags = buildReg("FLAGS")
fp = buildReg("F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15")
- callerSave = gp | fp | flags | buildReg("g") // runtime.setg (and anything calling it) may clobber g
+ callerSave = gp | fp | buildReg("g") // runtime.setg (and anything calling it) may clobber g
)
// Common regInfo
var (
- gp01 = regInfo{inputs: []regMask{}, outputs: []regMask{gp}}
+ gp01 = regInfo{inputs: nil, outputs: []regMask{gp}}
gp11 = regInfo{inputs: []regMask{gpg}, outputs: []regMask{gp}}
- gp11carry = regInfo{inputs: []regMask{gpg}, outputs: []regMask{flags, gp}}
+ gp11carry = regInfo{inputs: []regMask{gpg}, outputs: []regMask{0, gp}}
gp11sp = regInfo{inputs: []regMask{gpspg}, outputs: []regMask{gp}}
- gp1flags = regInfo{inputs: []regMask{gpg}, outputs: []regMask{flags}}
- gp1flags1 = regInfo{inputs: []regMask{gp, flags}, outputs: []regMask{gp}}
+ gp1flags = regInfo{inputs: []regMask{gpg}}
+ gp1flags1 = regInfo{inputs: []regMask{gp}, outputs: []regMask{gp}}
gp21 = regInfo{inputs: []regMask{gpg, gpg}, outputs: []regMask{gp}}
- gp21cf = regInfo{inputs: []regMask{gpg, gpg}, outputs: []regMask{gp}, clobbers: flags} // cf: clobbers flags
- gp21carry = regInfo{inputs: []regMask{gpg, gpg}, outputs: []regMask{flags, gp}}
- gp2flags = regInfo{inputs: []regMask{gpg, gpg}, outputs: []regMask{flags}}
- gp2flags1 = regInfo{inputs: []regMask{gp, gp, flags}, outputs: []regMask{gp}}
+ gp21carry = regInfo{inputs: []regMask{gpg, gpg}, outputs: []regMask{0, gp}}
+ gp2flags = regInfo{inputs: []regMask{gpg, gpg}}
+ gp2flags1 = regInfo{inputs: []regMask{gp, gp}, outputs: []regMask{gp}}
gp22 = regInfo{inputs: []regMask{gpg, gpg}, outputs: []regMask{gp, gp}}
gp31 = regInfo{inputs: []regMask{gp, gp, gp}, outputs: []regMask{gp}}
- gp31carry = regInfo{inputs: []regMask{gp, gp, gp}, outputs: []regMask{flags, gp}}
- gp3flags = regInfo{inputs: []regMask{gp, gp, gp}, outputs: []regMask{flags}}
- gp3flags1 = regInfo{inputs: []regMask{gp, gp, gp, flags}, outputs: []regMask{gp}}
+ gp31carry = regInfo{inputs: []regMask{gp, gp, gp}, outputs: []regMask{0, gp}}
+ gp3flags = regInfo{inputs: []regMask{gp, gp, gp}}
+ gp3flags1 = regInfo{inputs: []regMask{gp, gp, gp}, outputs: []regMask{gp}}
gpload = regInfo{inputs: []regMask{gpspsbg}, outputs: []regMask{gp}}
- gpstore = regInfo{inputs: []regMask{gpspsbg, gpg}, outputs: []regMask{}}
+ gpstore = regInfo{inputs: []regMask{gpspsbg, gpg}}
gp2load = regInfo{inputs: []regMask{gpspsbg, gpg}, outputs: []regMask{gp}}
- gp2store = regInfo{inputs: []regMask{gpspsbg, gpg, gpg}, outputs: []regMask{}}
- fp01 = regInfo{inputs: []regMask{}, outputs: []regMask{fp}}
+ gp2store = regInfo{inputs: []regMask{gpspsbg, gpg, gpg}}
+ fp01 = regInfo{inputs: nil, outputs: []regMask{fp}}
fp11 = regInfo{inputs: []regMask{fp}, outputs: []regMask{fp}}
- fp1flags = regInfo{inputs: []regMask{fp}, outputs: []regMask{flags}}
+ fp1flags = regInfo{inputs: []regMask{fp}}
fpgp = regInfo{inputs: []regMask{fp}, outputs: []regMask{gp}}
gpfp = regInfo{inputs: []regMask{gp}, outputs: []regMask{fp}}
fp21 = regInfo{inputs: []regMask{fp, fp}, outputs: []regMask{fp}}
- fp2flags = regInfo{inputs: []regMask{fp, fp}, outputs: []regMask{flags}}
+ fp2flags = regInfo{inputs: []regMask{fp, fp}}
fpload = regInfo{inputs: []regMask{gpspsbg}, outputs: []regMask{fp}}
- fpstore = regInfo{inputs: []regMask{gpspsbg, fp}, outputs: []regMask{}}
- readflags = regInfo{inputs: []regMask{flags}, outputs: []regMask{gp}}
+ fpstore = regInfo{inputs: []regMask{gpspsbg, fp}}
+ readflags = regInfo{inputs: nil, outputs: []regMask{gp}}
)
ops := []opData{
// binary ops
@@ -141,10 +138,10 @@ func init() {
{name: "MUL", argLength: 2, reg: gp21, asm: "MUL", commutative: true}, // arg0 * arg1
{name: "HMUL", argLength: 2, reg: gp21, asm: "MULL", commutative: true}, // (arg0 * arg1) >> 32, signed
{name: "HMULU", argLength: 2, reg: gp21, asm: "MULLU", commutative: true}, // (arg0 * arg1) >> 32, unsigned
- {name: "DIV", argLength: 2, reg: gp21cf, asm: "DIV"}, // arg0 / arg1, signed, soft div clobbers flags
- {name: "DIVU", argLength: 2, reg: gp21cf, asm: "DIVU"}, // arg0 / arg1, unsighed
- {name: "MOD", argLength: 2, reg: gp21cf, asm: "MOD"}, // arg0 % arg1, signed
- {name: "MODU", argLength: 2, reg: gp21cf, asm: "MODU"}, // arg0 % arg1, unsigned
+ {name: "DIV", argLength: 2, reg: gp21, asm: "DIV", clobberFlags: true}, // arg0 / arg1, signed, soft div clobbers flags
+ {name: "DIVU", argLength: 2, reg: gp21, asm: "DIVU", clobberFlags: true}, // arg0 / arg1, unsighed
+ {name: "MOD", argLength: 2, reg: gp21, asm: "MOD", clobberFlags: true}, // arg0 % arg1, signed
+ {name: "MODU", argLength: 2, reg: gp21, asm: "MODU", clobberFlags: true}, // arg0 % arg1, unsigned
{name: "ADDS", argLength: 2, reg: gp21carry, asm: "ADD", commutative: true}, // arg0 + arg1, set carry flag
{name: "ADDSconst", argLength: 1, reg: gp11carry, asm: "ADD", aux: "Int32"}, // arg0 + auxInt, set carry flag
@@ -190,7 +187,7 @@ func init() {
{name: "SLLconst", argLength: 1, reg: gp11, asm: "SLL", aux: "Int32"}, // arg0 << auxInt
{name: "SRL", argLength: 2, reg: gp21, asm: "SRL"}, // arg0 >> arg1, unsigned, shift amount is mod 256
{name: "SRLconst", argLength: 1, reg: gp11, asm: "SRL", aux: "Int32"}, // arg0 >> auxInt, unsigned
- {name: "SRA", argLength: 2, reg: gp21cf, asm: "SRA"}, // arg0 >> arg1, signed, shift amount is mod 256
+ {name: "SRA", argLength: 2, reg: gp21, asm: "SRA"}, // arg0 >> arg1, signed, shift amount is mod 256
{name: "SRAconst", argLength: 1, reg: gp11, asm: "SRA", aux: "Int32"}, // arg0 >> auxInt, signed
{name: "SRRconst", argLength: 1, reg: gp11, aux: "Int32"}, // arg0 right rotate by auxInt bits
@@ -363,11 +360,11 @@ func init() {
{name: "SRAcond", argLength: 3, reg: gp2flags1, asm: "SRA"}, // arg0 >> 31 if flags indicates HS, arg0 >> arg1 otherwise, signed shift, arg2=flags
// function calls
- {name: "CALLstatic", argLength: 1, reg: regInfo{clobbers: callerSave}, aux: "SymOff"}, // call static function aux.(*gc.Sym). arg0=mem, auxint=argsize, returns mem
- {name: "CALLclosure", argLength: 3, reg: regInfo{inputs: []regMask{gpsp, buildReg("R7"), 0}, clobbers: callerSave}, aux: "Int64"}, // call function via closure. arg0=codeptr, arg1=closure, arg2=mem, auxint=argsize, returns mem
- {name: "CALLdefer", argLength: 1, reg: regInfo{clobbers: callerSave}, aux: "Int64"}, // call deferproc. arg0=mem, auxint=argsize, returns mem
- {name: "CALLgo", argLength: 1, reg: regInfo{clobbers: callerSave}, aux: "Int64"}, // call newproc. arg0=mem, auxint=argsize, returns mem
- {name: "CALLinter", argLength: 2, reg: regInfo{inputs: []regMask{gp}, clobbers: callerSave}, aux: "Int64"}, // call fn by pointer. arg0=codeptr, arg1=mem, auxint=argsize, returns mem
+ {name: "CALLstatic", argLength: 1, reg: regInfo{clobbers: callerSave}, aux: "SymOff", clobberFlags: true}, // call static function aux.(*gc.Sym). arg0=mem, auxint=argsize, returns mem
+ {name: "CALLclosure", argLength: 3, reg: regInfo{inputs: []regMask{gpsp, buildReg("R7"), 0}, clobbers: callerSave}, aux: "Int64", clobberFlags: true}, // call function via closure. arg0=codeptr, arg1=closure, arg2=mem, auxint=argsize, returns mem
+ {name: "CALLdefer", argLength: 1, reg: regInfo{clobbers: callerSave}, aux: "Int64", clobberFlags: true}, // call deferproc. arg0=mem, auxint=argsize, returns mem
+ {name: "CALLgo", argLength: 1, reg: regInfo{clobbers: callerSave}, aux: "Int64", clobberFlags: true}, // call newproc. arg0=mem, auxint=argsize, returns mem
+ {name: "CALLinter", argLength: 2, reg: regInfo{inputs: []regMask{gp}, clobbers: callerSave}, aux: "Int64", clobberFlags: true}, // call fn by pointer. arg0=codeptr, arg1=mem, auxint=argsize, returns mem
// pseudo-ops
{name: "LoweredNilCheck", argLength: 2, reg: regInfo{inputs: []regMask{gpg}}}, // panic if arg0 is nil. arg1=mem.
@@ -430,8 +427,9 @@ func init() {
argLength: 4,
reg: regInfo{
inputs: []regMask{buildReg("R1"), gp, gp},
- clobbers: buildReg("R1 FLAGS"),
+ clobbers: buildReg("R1"),
},
+ clobberFlags: true,
},
// large or unaligned move
@@ -450,8 +448,9 @@ func init() {
argLength: 4,
reg: regInfo{
inputs: []regMask{buildReg("R2"), buildReg("R1"), gp},
- clobbers: buildReg("R1 R2 FLAGS"),
+ clobbers: buildReg("R1 R2"),
},
+ clobberFlags: true,
},
// Scheduler ensures LoweredGetClosurePtr occurs only in entry block,
@@ -506,7 +505,6 @@ func init() {
regnames: regNamesARM,
gpregmask: gp,
fpregmask: fp,
- flagmask: flags,
framepointerreg: -1, // not used
})
}
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