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.
