簡(jiǎn)單的代碼遞歸和尾部package mainimport "fmt"func TailRecursive(number int, product int) int {? ? product = product + number? ? if number == 1 {? ? ? ? return product? ? }? ? return TailRecursive(number-1, product)}func main() {? ? answer := TailRecursive(5, 0)? ? fmt.Printf("Recursive: %d\n", answer)}當(dāng)我嘗試工具編譯時(shí)go tool compile 6g -S ./g9.go > assembly.asm我懂了?cat assembly.asm?6g:0:0: open 6g: no such file or directory我的內(nèi)核架構(gòu)x86_64 x86_64 x86_64 GNU/Linux如何使用 go tool compile 獲得正確的匯編輸出？
1 回答
ITMISS
TA貢獻(xiàn)1871條經(jīng)驗(yàn) 獲得超8個(gè)贊
放下 6g（現(xiàn)在稱為compile）
go tool compile -S ./g9.go > assembly.asm
輸出
"".TailRecursive STEXT size=107 args=0x18 locals=0x20
0x0000 00000 (g9.go:5) TEXT "".TailRecursive(SB), $32-24
0x0000 00000 (g9.go:5) MOVQ (TLS), CX
0x0009 00009 (g9.go:5) CMPQ SP, 16(CX)
0x000d 00013 (g9.go:5) JLS 100
0x000f 00015 (g9.go:5) SUBQ $32, SP
0x0013 00019 (g9.go:5) MOVQ BP, 24(SP)
0x0018 00024 (g9.go:5) LEAQ 24(SP), BP
0x001d 00029 (g9.go:5) FUNCDATA $0, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
0x001d 00029 (g9.go:5) FUNCDATA $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
0x001d 00029 (g9.go:5) FUNCDATA $3, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
0x001d 00029 (g9.go:7) PCDATA $2, $0
0x001d 00029 (g9.go:7) PCDATA $0, $0
0x001d 00029 (g9.go:7) MOVQ "".number+40(SP), AX
0x0022 00034 (g9.go:7) MOVQ "".product+48(SP), CX
0x0027 00039 (g9.go:7) ADDQ AX, CX
0x002a 00042 (g9.go:9) CMPQ AX, $1
0x002e 00046 (g9.go:9) JNE 63
0x0030 00048 (g9.go:11) MOVQ CX, "".~r2+56(SP)
0x0035 00053 (g9.go:11) MOVQ 24(SP), BP
0x003a 00058 (g9.go:11) ADDQ $32, SP
0x003e 00062 (g9.go:11) RET
...
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