Hello, GCC implements -Wvla as "warn on every VLA" (this is useful to find every VLA, for example, if they are forbidden by coding guidelines). Currently Clang implements -Wvla as "warn on VLA when it is an extension".
The attached patch makes our behavior match GCC. The existing vla
extwarn is moved under -Wvla-extension and is still included into
-Wgnu.
-Wvla is disabled by default, so I don't think that this change will
cause much fallout.
This fixes PR5953.
Dmitri
--
main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
(j){printf("%d\n",i);}}} /*Dmitri Gribenko <[email protected]>*/
implement-wvla-correctly-v1.patch
Description: Binary data
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