http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53174
Bug #: 53174
Summary: ICE in expand_debug_expr
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: p...@mandriva.com.br
Created attachment 27271
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27271
ICE test case
I verified the problem happens in i586 with gcc 4.6.3,
x86_64 with gcc 4.6.1, 4.6.3 and a 4.7.0 snapshot.
The minimum set of options to cause the ICE is
g++ -c test.cc -O3 -g -ffast-math
changing either does not cause the crash.
backtrace in 4.6 looks like:
0x0000000000603185 in expand_debug_expr (exp=0x7ffff57dd790)
at ../../gcc/cfgexpand.c:2380
2380 enum machine_mode mode = TYPE_MODE (TREE_TYPE (exp));
and in 4.7:
0x000000000064bc1c in expand_debug_expr (exp=0x7ffff4a3a730)
at ../../gcc/cfgexpand.c:2615
2615 enum machine_mode mode = TYPE_MODE (TREE_TYPE (exp));
The testcase is adapted from demosaic_algos.cc from the
package from http://www.rawtherapee.com/
