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.
