SQRTF - Code Search

test/codegen/math.go

	return math.Sqrt(x)
}

func sqrt32(x float32) float32 {
	// amd64:"SQRTSS"
	// 386/sse2:"SQRTSS" 386/softfloat:-"SQRTS"
	// arm64:"FSQRTS"
	// arm/7:"SQRTF"
	// mips/hardfloat:"SQRTF" mips/softfloat:-"SQRTF"
	// mips64/hardfloat:"SQRTF" mips64/softfloat:-"SQRTF"
	// wasm:"F32Sqrt"
	// ppc64x:"FSQRTS"
	// riscv64: "FSQRTS"
	return float32(math.Sqrt(float64(x)))
}

// Check that it's using integer registers

Registered: Wed Jun 12 16:32:35 UTC 2024

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github.com/golang/go

src/cmd/internal/obj/mips/anames.go

	"NEGF",
	"NEGW",
	"NEGV",
	"NOOP",
	"NOR",
	"OR",
	"REM",
	"REMU",
	"RFE",
	"ROTR",
	"ROTRV",
	"SC",
	"SCV",
	"SEB",
	"SEH",
	"SGT",
	"SGTU",
	"SLL",
	"SQRTD",
	"SQRTF",
	"SRA",
	"SRL",
	"SUB",
	"SUBD",
	"SUBF",
	"SUBU",
	"SUBW",
	"SYNC",
	"SYSCALL",
	"TEQ",
	"TLBP",
	"TLBR",
	"TLBWI",
	"TLBWR",
	"TNE",
	"WORD",
	"WSBH",
	"XOR",

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github.com/golang/go

src/cmd/internal/obj/loong64/anames.go

	"MULH",
	"MULHU",
	"MULW",
	"NEGD",
	"NEGF",
	"NEGW",
	"NEGV",
	"NOOP",
	"NOR",
	"OR",
	"REM",
	"REMU",
	"RFE",
	"SC",
	"SCV",
	"SGT",
	"SGTU",
	"SLL",
	"SQRTD",
	"SQRTF",
	"SRA",
	"SRL",
	"ROTR",
	"SUB",
	"SUBD",
	"SUBF",
	"SUBU",
	"SUBW",
	"DBAR",
	"SYSCALL",
	"TEQ",
	"TNE",
	"WORD",
	"XOR",
	"MASKEQZ",
	"MASKNEZ",
	"MOVV",

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github.com/golang/go

src/cmd/asm/internal/asm/testdata/loong64enc1.s

	MOVWD	F4, F5			// 85201d01
	MOVDW	F4, F5			// 85081b01
	NEGF	F4, F5			// 85141401
	NEGD	F4, F5			// 85181401
	ABSD	F4, F5			// 85081401
	TRUNCDW	F4, F5			// 85881a01
	TRUNCFW	F4, F5			// 85841a01
	SQRTF	F4, F5			// 85441401
	SQRTD	F4, F5			// 85481401

	DBAR	 			// 00007238
	NOOP	 			// 00004003

	MOVWR	R4, result+16(FP) 	// 6460402f
	MOVWR	R4, 1(R5) 		// a404402f
	MOVWR	y+8(FP), R4 		// 6440402e

Registered: Wed Jun 12 16:32:35 UTC 2024

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github.com/golang/go

src/cmd/compile/internal/ssa/_gen/MIPSOps.go

		{name: "ABSD", argLength: 1, reg: fp11, asm: "ABSD"},   // abs(arg0), float64
		{name: "SQRTD", argLength: 1, reg: fp11, asm: "SQRTD"}, // sqrt(arg0), float64
		{name: "SQRTF", argLength: 1, reg: fp11, asm: "SQRTF"}, // sqrt(arg0), float32

		// shifts
		{name: "SLL", argLength: 2, reg: gp21, asm: "SLL"},                    // arg0 << arg1, shift amount is mod 32

Registered: Wed Jun 12 16:32:35 UTC 2024

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github.com/golang/go

src/cmd/compile/internal/ssa/_gen/LOONG64Ops.go

		{name: "NEGD", argLength: 1, reg: fp11, asm: "NEGD"},   // -arg0, float64
		{name: "SQRTD", argLength: 1, reg: fp11, asm: "SQRTD"}, // sqrt(arg0), float64
		{name: "SQRTF", argLength: 1, reg: fp11, asm: "SQRTF"}, // sqrt(arg0), float32

		{name: "MASKEQZ", argLength: 2, reg: gp21, asm: "MASKEQZ"}, // returns 0 if arg1 == 0, otherwise returns arg0

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github.com/golang/go

src/cmd/compile/internal/ssa/_gen/MIPS64Ops.go

		{name: "ABSD", argLength: 1, reg: fp11, asm: "ABSD"},   // abs(arg0), float64
		{name: "SQRTD", argLength: 1, reg: fp11, asm: "SQRTD"}, // sqrt(arg0), float64
		{name: "SQRTF", argLength: 1, reg: fp11, asm: "SQRTF"}, // sqrt(arg0), float32

		// shifts
		{name: "SLLV", argLength: 2, reg: gp21, asm: "SLLV"},                    // arg0 << arg1, shift amount is mod 64

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github.com/golang/go

src/cmd/vendor/golang.org/x/arch/arm/armasm/plan9x.go

	{VNEG_EQ_F32, []int{1, 0}, "VNEG", "NEGF"},
	{VNEG_EQ_F64, []int{1, 0}, "VNEG", "NEGD"},
	{VABS_EQ_F32, []int{1, 0}, "VABS", "ABSF"},
	{VABS_EQ_F64, []int{1, 0}, "VABS", "ABSD"},
	{VSQRT_EQ_F32, []int{1, 0}, "VSQRT", "SQRTF"},
	{VSQRT_EQ_F64, []int{1, 0}, "VSQRT", "SQRTD"},
	{VCMP_EQ_F32, []int{1, 0}, "VCMP", "CMPF"},
	{VCMP_EQ_F64, []int{1, 0}, "VCMP", "CMPD"},
	{VCMP_E_EQ_F32, []int{1, 0}, "VCMP.E", "CMPF"},

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github.com/golang/go

src/cmd/compile/internal/ssa/_gen/ARMOps.go

		{name: "NEGD", argLength: 1, reg: fp11, asm: "NEGD"},   // -arg0, float64
		{name: "SQRTD", argLength: 1, reg: fp11, asm: "SQRTD"}, // sqrt(arg0), float64
		{name: "SQRTF", argLength: 1, reg: fp11, asm: "SQRTF"}, // sqrt(arg0), float32
		{name: "ABSD", argLength: 1, reg: fp11, asm: "ABSD"},   // abs(arg0), float64

		{name: "CLZ", argLength: 1, reg: gp11, asm: "CLZ"},     // count leading zero

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github.com/golang/go

src/cmd/compile/internal/ssa/_gen/LOONG64.rules

// unary ops
(Neg(64|32|16|8) ...) => (NEGV ...)
(Neg(32|64)F ...) => (NEG(F|D) ...)

(Com(64|32|16|8) x) => (NOR (MOVVconst [0]) x)

(Sqrt ...) => (SQRTD ...)
(Sqrt32 ...) => (SQRTF ...)

// boolean ops -- booleans are represented with 0=false, 1=true
(AndB ...) => (AND ...)
(OrB ...) => (OR ...)
(EqB x y) => (XOR (MOVVconst [1]) (XOR <typ.Bool> x y))
(NeqB ...) => (XOR ...)

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