https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79728
Bug ID: 79728
Summary: ice in setup_pressure_classes, at ira.c:912
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
The following two lines of code:
$ more bug340.c
register a __asm__("xmm0");
fn1() {}
$
does this with a build of gcc trunk from revision 245750.
bug340.c:2:1: internal compiler error: in setup_pressure_classes, at ira.c:912
fn1() {}
^~~
0x9ed9e8 setup_pressure_classes
../../trunk/gcc/ira.c:912
0x9ed9e8 setup_allocno_and_important_classes
../../trunk/gcc/ira.c:1068
0x9ed9e8 find_reg_classes
../../trunk/gcc/ira.c:1428
0x9ed9e8 ira_init()
../../trunk/gcc/ira.c:1727
This seems to have been going wrong since sometime before revision 236961.
