diff options
| author | Ondřej Surý <ondrej@sury.org> | 2011-08-03 16:54:30 +0200 |
|---|---|---|
| committer | Ondřej Surý <ondrej@sury.org> | 2011-08-03 16:54:30 +0200 |
| commit | 28592ee1ea1f5cdffcf85472f9de0285d928cf12 (patch) | |
| tree | 32944e18b23f7fe4a0818a694aa2a6dfb1835463 /src/cmd/8g/gsubr.c | |
| parent | e836bee4716dc0d4d913537ad3ad1925a7ac32d0 (diff) | |
| download | golang-upstream/59.tar.gz | |
Imported Upstream version 59upstream/59
Diffstat (limited to 'src/cmd/8g/gsubr.c')
| -rw-r--r-- | src/cmd/8g/gsubr.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/cmd/8g/gsubr.c b/src/cmd/8g/gsubr.c index a8d65cf22..a35c81eb1 100644 --- a/src/cmd/8g/gsubr.c +++ b/src/cmd/8g/gsubr.c @@ -100,6 +100,19 @@ patch(Prog *p, Prog *to) p->to.offset = to->loc; } +Prog* +unpatch(Prog *p) +{ + Prog *q; + + if(p->to.type != D_BRANCH) + fatal("unpatch: not a branch"); + q = p->to.branch; + p->to.branch = P; + p->to.offset = 0; + return q; +} + /* * start a new Prog list. */ |