commit | 29428e322d6f4eaccb7636e93f31f20cffcf7377 | [log] [tgz] |
---|---|---|
author | Rob Pike <r@golang.org> | Wed Jan 28 13:34:13 2015 -0800 |
committer | Rob Pike <r@golang.org> | Wed Jan 28 22:26:41 2015 +0000 |
tree | d8a46a98f27edff3ed6f5863bfdd21de837a8c44 | |
parent | 0012b83507f06d5ecb95cf40170b539d58f35881 [diff] |
[dev.cc] cmd/asm: check for overflow on multiply and left shift The internal size of integers is not part of the definition of the assembler, so if bits roll out the top it's a portability problem at best. If you need to use shift to create a mask, use & to restrict the bit count before shifting. That will make it portable, too. Change-Id: I24f9a4d2152c3f9f253e22ff75270fe50c18612b Reviewed-on: https://go-review.googlesource.com/3451 Reviewed-by: Russ Cox <rsc@golang.org>
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