https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104637
Bug ID: 104637 Summary: ICE: maximum number of LRA assignment passes is achieved (30) with -Og -fno-forward-propagate -mavx Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 52489 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52489&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -Og -fno-forward-propagate -mavx testcase.c testcase.c: In function 'foo': testcase.c:12:5: warning: division by zero [-Wdiv-by-zero] 12 | u /= 0; | ^~ during RTL pass: reload testcase.c:16:1: internal compiler error: maximum number of LRA assignment passes is achieved (30) 16 | } | ^ 0x11b4d4c lra_assign(bool&) /repo/gcc-trunk/gcc/lra-assigns.cc:1694 0x11af12f lra(_IO_FILE*) /repo/gcc-trunk/gcc/lra.cc:2395 0x115fbc9 do_reload /repo/gcc-trunk/gcc/ira.cc:5940 0x115fbc9 execute /repo/gcc-trunk/gcc/ira.cc:6126 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.