https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84682
Bug ID: 84682 Summary: internal compiler error: Segmentation fault (process_address_1) Product: gcc Version: 8.0.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: inline-asm Assignee: unassigned at gcc dot gnu.org Reporter: vegard.nossum at gmail dot com Target Milestone: --- Input: void b(char a) { asm("" : : "pIr" (a)); } Output: $ xgcc -x c++ -S -Wall - during RTL pass: reload <stdin>: In function 'void b(char)': <stdin>:3:1: internal compiler error: Segmentation fault 0x3155789 crash_signal /home/vegard/git/gcc/gcc/toplev.c:325 0x28a3e20 process_address_1 /home/vegard/git/gcc/gcc/lra-constraints.c:3424 0x28a7ba3 process_address /home/vegard/git/gcc/gcc/lra-constraints.c:3521 0x28a7ba3 curr_insn_transform /home/vegard/git/gcc/gcc/lra-constraints.c:3836 0x28bbf56 lra_constraints(bool) /home/vegard/git/gcc/gcc/lra-constraints.c:4877 0x282c524 lra(_IO_FILE*) /home/vegard/git/gcc/gcc/lra.c:2419 0x260b334 do_reload /home/vegard/git/gcc/gcc/ira.c:5465 0x260b334 execute /home/vegard/git/gcc/gcc/ira.c:5649 $ xgcc --version xgcc (GCC) 8.0.1 20180301 (experimental) Built from git c435a9e730c6e8f10da09d58b4fc9aaeb401b0d5 (r258097). Seems to have been introduced between 4.8.5 and 4.9.0. Test case was minimised by C-Reduce.