diff options
author | Russ Cox <rsc@golang.org> | 2014-10-28 21:50:16 -0400 |
---|---|---|
committer | Russ Cox <rsc@golang.org> | 2014-10-28 21:50:16 -0400 |
commit | b55791e2008703b33883e48e72a347ba07a65486 (patch) | |
tree | 2dc3ed44dc71a1aa6af2d9fbe331464408104d79 /src/runtime/memclr_plan9_386.s | |
parent | 87b4149b22feb9d8d52da1730b455e39436a3a8d (diff) | |
download | go-b55791e2008703b33883e48e72a347ba07a65486.tar.gz go-b55791e2008703b33883e48e72a347ba07a65486.zip |
[dev.power64] cmd/5a, cmd/6a, cmd/8a, cmd/9a: make labels function-scoped
I removed support for jumping between functions years ago,
as part of doing the instruction layout for each function separately.
Given that, it makes sense to treat labels as function-scoped.
This lets each function have its own 'loop' label, for example.
Makes the assembly much cleaner and removes the last
reason anyone would reach for the 123(PC) form instead.
Note that this is on the dev.power64 branch, but it changes all
the assemblers. The change will ship in Go 1.5 (perhaps after
being ported into the new assembler).
Came up as part of CL 167730043.
LGTM=r
R=r
CC=austin, dave, golang-codereviews, minux
https://golang.org/cl/159670043
Diffstat (limited to 'src/runtime/memclr_plan9_386.s')
-rw-r--r-- | src/runtime/memclr_plan9_386.s | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/src/runtime/memclr_plan9_386.s b/src/runtime/memclr_plan9_386.s index b4b671f773..50f327b4ed 100644 --- a/src/runtime/memclr_plan9_386.s +++ b/src/runtime/memclr_plan9_386.s @@ -10,40 +10,40 @@ TEXT runtime·memclr(SB), NOSPLIT, $0-8 MOVL n+4(FP), BX XORL AX, AX -clr_tail: +tail: TESTL BX, BX - JEQ clr_0 + JEQ _0 CMPL BX, $2 - JBE clr_1or2 + JBE _1or2 CMPL BX, $4 - JBE clr_3or4 + JBE _3or4 CMPL BX, $8 - JBE clr_5through8 + JBE _5through8 CMPL BX, $16 - JBE clr_9through16 + JBE _9through16 MOVL BX, CX SHRL $2, CX REP STOSL ANDL $3, BX - JNE clr_tail + JNE tail RET -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: MOVL AX, (DI) MOVL AX, 4(DI) MOVL AX, -8(DI)(BX*1) |