213cfa8d0a
This is similar to the earlier patch to avoid having MEM_EXPRs referencing global vars without varpool nodes, but this time the difference is that during gimplification some hashing actually created DECL_RTLs for the n VAR_DECL and the previous change was in the if above this when DECL_RTL is NULL and we are considering creating it. The following patch drops on the floor references to vars where we've optimized away the varpool node even when it has DECL_RTL. Bootstrapped/regtested on x86_64-linux and i686-linux, plus bootstrapped on those without the cfgexpand.cc change, reapplied it and rebuilt stage3 cc1/cc1plus, the resulting cc1/cc1plus binaries on both targets were identical except for the 16-byte executable_checksum (I've done the second bootstraps in the same directory as the first one after moving the previous one elsewhere, so pathnames were the same, just checksum hasn't been regenerated). So, at least on those binaries this patch doesn't affect debug info at all. 2022-05-19 Jakub Jelinek <jakub@redhat.com> PR debug/105630 * cfgexpand.cc (expand_debug_expr): For VAR_DECL, punt for global vars without symtab node even when they have DECL_RTL set. * gcc.dg/pr105630.c: New test. |
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