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cmd/5g, cmd/6g, cmd/8g: restore occurrences of R replaced by nil in comments.

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R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/12842043
This commit is contained in:
Rémy Oudompheng 2013-08-14 21:24:48 +02:00
parent 54bdfc007f
commit 0d9db86f74
3 changed files with 11 additions and 11 deletions
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10
src/cmd/5g/peep.c
View File

@ -493,15 +493,15 @@ constprop(Adr *c1, Adr *v1, Flow *r)
/*
* shortprop eliminates redundant zero/sign extensions.
*
* MOVBS x, nil
* <no use nil>
* MOVBS nil, nil'
* MOVBS x, R
* <no use R>
* MOVBS R, R'
*
* changed to
*
* MOVBS x, nil
* MOVBS x, R
* ...
* MOVB nil, nil' (compiled to mov)
* MOVB R, R' (compiled to mov)
*
* MOVBS above can be a MOVBS, MOVBU, MOVHS or MOVHU.
*/

6
src/cmd/6g/peep.c
View File

@ -98,9 +98,9 @@ peep(Prog *firstp)
elimshortmov(g);
// constant propagation
// find MOV $con,nil followed by
// another MOV $con,nil without
// setting nil in the interim
// find MOV $con,R followed by
// another MOV $con,R without
// setting R in the interim
for(r=g->start; r!=nil; r=r->link) {
p = r->prog;
switch(p->as) {

6
src/cmd/8g/peep.c
View File

@ -97,9 +97,9 @@ peep(Prog *firstp)
elimshortmov(g);
// constant propagation
// find MOV $con,nil followed by
// another MOV $con,nil without
// setting nil in the interim
// find MOV $con,R followed by
// another MOV $con,R without
// setting R in the interim
for(r=g->start; r!=nil; r=r->link) {
p = r->prog;
switch(p->as) {