https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86547
Bug ID: 86547
Summary: s390x: Maximum number of LRA assignment passes is
achieved (30) when compiling a small inline assembler
snippet
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: iii at linux dot ibm.com
CC: krebbel at gcc dot gnu.org
Target Milestone: ---
Shows up on master (6cfa970a):
$ cat test.c
int a;
struct {} __thread b;
void c() {
__asm__(""
:
: "r"(a), ""(b), ""(b), "r"(a), "r"(a), "m"(a), "m"(a), "m"(a),
"m"(a), "m"(a), "m"(a)
: "r12");
}
$ PATH=gcc:$PATH xgcc -c test.c
during RTL pass: reload
test.c: In function ‘c’:
test.c:8:1: internal compiler error: Maximum number of LRA assignment passes is
achieved (30)
}
^
0x1a2d43f lra_assign(bool&)
../../gcc/gcc/lra-assigns.c:1669
0x1a24e79 lra(_IO_FILE*)
../../gcc/gcc/lra.c:2482
0x19c147f do_reload
../../gcc/gcc/ira.c:5465
0x19c147f execute
../../gcc/gcc/ira.c:5649
