https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69062
Bug ID: 69062
Summary: invalid PHI argument error with
ftree-parallelize-loops=2
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
Target Milestone: ---
Created attachment 37139
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37139&action=edit
ira-color.cc
$ gcc -O2 ira-color.cc -S -ftree-parallelize-loops=2
ira-color.cc: In function ‘<built-in>’:
ira-color.cc:69:8: error: invalid PHI argument
r < conflict_hregno + conflict_nregs; r++)
^
&conflicting_regs
ira-color.cc:69:8: error: location references block not in block tree
&conflicting_regs
prephitmp_39 = PHI <_40(16), &conflicting_regs(7)>
ira-color.cc:69:8: internal compiler error: verify_gimple failed
0x11b7aca verify_gimple_in_cfg(function*, bool)
/home/vries/gcc_versions/devel/src/gcc/tree-cfg.c:5119
0xf9c3d2 execute_function_todo
/home/vries/gcc_versions/devel/src/gcc/passes.c:1958
0xf9b4a5 do_per_function
/home/vries/gcc_versions/devel/src/gcc/passes.c:1645
0xf9c5ae execute_todo
/home/vries/gcc_versions/devel/src/gcc/passes.c:2010
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
