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| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2019-06-19 23:50:33 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2019-06-19 23:50:33 +0200 |
| commit | 63191949b911658c3774e727061fcf166ad9ace2 (patch) | |
| tree | 4457246e240e6d4b82a7fbbee0aef1374c519bfe /sys/src/cmd/cc | |
| parent | 159f96c534563f26edeeb227cd00f1bdd3bd2596 (diff) | |
cc: remove nullwarn() from OCAST codegen, zap void casts
implicit casts would cause spurious "result of operation not used"
warnings such as ape's stdio putc() macro.
make (void) casts non-ops when the casted expression has no
side effects. this avoid spurious warning with ape's assert()
macro.
Diffstat (limited to 'sys/src/cmd/cc')
| -rw-r--r-- | sys/src/cmd/cc/com.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/src/cmd/cc/com.c b/sys/src/cmd/cc/com.c index 9fcf9861f..46a59d49a 100644 --- a/sys/src/cmd/cc/com.c +++ b/sys/src/cmd/cc/com.c @@ -1073,6 +1073,11 @@ loop: break; case OCAST: + if(n->type == types[TVOID] && !side(l)){ + n->left = Z; + n->type = T; + break; + } if(castucom(n)) warn(n, "32-bit unsigned complement zero-extended to 64 bits"); ccom(l); |