diff options
Diffstat (limited to 'src/runtime/memclr_amd64.s')
| -rw-r--r-- | src/runtime/memclr_amd64.s | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/src/runtime/memclr_amd64.s b/src/runtime/memclr_amd64.s index 94a2c7f23..ec24f1db2 100644 --- a/src/runtime/memclr_amd64.s +++ b/src/runtime/memclr_amd64.s @@ -15,30 +15,30 @@ TEXT runtime·memclr(SB), NOSPLIT, $0-16 XORQ AX, AX // MOVOU seems always faster than REP STOSQ. -clr_tail: +tail: TESTQ BX, BX - JEQ clr_0 + JEQ _0 CMPQ BX, $2 - JBE clr_1or2 + JBE _1or2 CMPQ BX, $4 - JBE clr_3or4 + JBE _3or4 CMPQ BX, $8 - JBE clr_5through8 + JBE _5through8 CMPQ BX, $16 - JBE clr_9through16 + JBE _9through16 PXOR X0, X0 CMPQ BX, $32 - JBE clr_17through32 + JBE _17through32 CMPQ BX, $64 - JBE clr_33through64 + JBE _33through64 CMPQ BX, $128 - JBE clr_65through128 + JBE _65through128 CMPQ BX, $256 - JBE clr_129through256 + JBE _129through256 // TODO: use branch table and BSR to make this just a single dispatch // TODO: for really big clears, use MOVNTDQ. -clr_loop: +loop: MOVOU X0, 0(DI) MOVOU X0, 16(DI) MOVOU X0, 32(DI) @@ -58,38 +58,38 @@ clr_loop: SUBQ $256, BX ADDQ $256, DI CMPQ BX, $256 - JAE clr_loop - JMP clr_tail + JAE loop + JMP tail -clr_1or2: +_1or2: MOVB AX, (DI) MOVB AX, -1(DI)(BX*1) RET -clr_0: +_0: RET -clr_3or4: +_3or4: MOVW AX, (DI) MOVW AX, -2(DI)(BX*1) RET -clr_5through8: +_5through8: MOVL AX, (DI) MOVL AX, -4(DI)(BX*1) RET -clr_9through16: +_9through16: MOVQ AX, (DI) MOVQ AX, -8(DI)(BX*1) RET -clr_17through32: +_17through32: MOVOU X0, (DI) MOVOU X0, -16(DI)(BX*1) RET -clr_33through64: +_33through64: MOVOU X0, (DI) MOVOU X0, 16(DI) MOVOU X0, -32(DI)(BX*1) MOVOU X0, -16(DI)(BX*1) RET -clr_65through128: +_65through128: MOVOU X0, (DI) MOVOU X0, 16(DI) MOVOU X0, 32(DI) @@ -99,7 +99,7 @@ clr_65through128: MOVOU X0, -32(DI)(BX*1) MOVOU X0, -16(DI)(BX*1) RET -clr_129through256: +_129through256: MOVOU X0, (DI) MOVOU X0, 16(DI) MOVOU X0, 32(DI) |