On 5/19/21 11:48 PM, Joern Wolfgang Rennecke wrote:
We set default for some target options in TARGET_OPTION_OPTIMIZATION_TABLE, but these can be overridden by specifying the corresponding explicit -mXXX / -mno-XXX options. When a function bears the attribue __attribute__ ((optimize("02"))) the target options are set to the default for that optimization level, which can be different from what was selected for the file as a whole. As handle_optimize_attribute is right now, it will thus clobber the target options, and with enable_checking it will then abort.The attached patch makes it save and restore the target options. Bootstrapped and regression tested on x86_64-pc-linux-gnu.
Btw. do you have a test-case we can add for this patch? Thanks, Martin
