diff options
| author | Russ Cox <rsc@golang.org> | 2010-06-30 20:34:31 -0700 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2010-06-30 20:34:31 -0700 |
| commit | ed39c764b886e2b19d07ccb265f6b2cf3535aa98 (patch) | |
| tree | c79d78f0c814839107af65bca1ea49a70de6d266 | |
| parent | 040f08184294daee78bea0d193aea945b1835be9 (diff) | |
| download | go-ed39c764b886e2b19d07ccb265f6b2cf3535aa98.tar.gz go-ed39c764b886e2b19d07ccb265f6b2cf3535aa98.zip | |
gc: do not crash on bad [...]T
Fixes #879.
R=ken2
CC=golang-dev
https://golang.org/cl/1678048
| -rw-r--r-- | src/cmd/gc/align.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/cmd/gc/align.c b/src/cmd/gc/align.c index 0d4fa991f3..1b9112d69a 100644 --- a/src/cmd/gc/align.c +++ b/src/cmd/gc/align.c @@ -225,6 +225,8 @@ dowidth(Type *t) uint64 cap; dowidth(t->type); + if(t->type->width == 0) + fatal("no width for type %T", t->type); if(tptr == TPTR32) cap = ((uint32)-1) / t->type->width; else @@ -275,6 +277,9 @@ dowidth(Type *t) break; } + // catch all for error cases; avoid divide by zero later + if(w == 0) + w = maxround; t->width = w; lineno = lno; |