https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95343
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Martin Jambor <jamb...@gcc.gnu.org>: https://gcc.gnu.org/g:61e4ee3f2c0e3d77602c87866cd5c0cfb81d5da2 commit r10-8421-g61e4ee3f2c0e3d77602c87866cd5c0cfb81d5da2 Author: Martin Jambor <mjam...@suse.cz> Date: Fri Jul 3 14:51:02 2020 +0200 ipa-sra: Prevent constructing debug info from wrong argument The mechanism generating debug info for removed parameters did not adjust index of the argument in the call statement to take into account extra arguments IPA-SRA might have produced when splitting a strucutre. This patch addresses that omission and stops gdb from showing incorrect value for the removed parameter and says "value optimized out" instead. The guality testcase will end up as UNSUPPORTED in the results which is how Richi told me on IRC we deal with this. It is possible to generate debug info to actually show the value of the removed parameter but so far my approaches to do just that seem toocontroversial (https://gcc.gnu.org/pipermail/gcc-patches/2020-May/546705.html), so before I come up with something better I'd like to push this to master and the gcc-10 branch in time for the GCC 10.2 release. gcc/ChangeLog: 2020-07-01 Martin Jambor <mjam...@suse.cz> PR debug/95343 * ipa-param-manipulation.c (ipa_param_adjustments::modify_call): Adjust argument index if necessary. gcc/testsuite/ChangeLog: 2020-07-01 Martin Jambor <mjam...@suse.cz> PR debug/95343 * gcc.dg/guality/pr95343.c: New test. (cherry picked from commit 053c88093a45f175f446eda009f3312e4e508514)
