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| author | Russ Cox <rsc@golang.org> | 2010-03-05 15:35:09 -0800 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2010-03-05 15:35:09 -0800 |
| commit | 6fbf0007b69f26ae9eeb6e14e40dc943013e20d5 (patch) | |
| tree | 67cf29cef444b0985c0a0350784166479abff782 /src/cmd/gc/walk.c | |
| parent | 62be41b9e6aec434582b7bc541e0eaed1e9631da (diff) | |
| download | golang-6fbf0007b69f26ae9eeb6e14e40dc943013e20d5.tar.gz | |
gc: better compilation of floating point +=
R=ken2
CC=golang-dev
http://codereview.appspot.com/255042
Diffstat (limited to 'src/cmd/gc/walk.c')
| -rw-r--r-- | src/cmd/gc/walk.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/cmd/gc/walk.c b/src/cmd/gc/walk.c index 2f151307a..5ee82eeac 100644 --- a/src/cmd/gc/walk.c +++ b/src/cmd/gc/walk.c @@ -823,10 +823,13 @@ walkexpr(Node **np, NodeList **init) } /* - * on 32-bit arch, rewrite 64-bit ops into l = l op r + * on 32-bit arch, rewrite 64-bit ops into l = l op r. + * on 386, rewrite float ops into l = l op r. + * TODO(rsc): Maybe this rewrite should be done always? */ et = n->left->type->etype; - if(widthptr == 4 && (et == TUINT64 || et == TINT64)) { + if((widthptr == 4 && (et == TUINT64 || et == TINT64)) || + (thechar == '8' && isfloat[et])) { l = safeexpr(n->left, init); r = nod(OAS, l, nod(n->etype, l, n->right)); typecheck(&r, Etop); |