https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69069
Bug ID: 69069
Summary: missing phi argument 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 37175
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37175&action=edit
files.tgz
...
$ gcc -S -O2 -gnatp g-debpoo.adb -ftree-parallelize-loops=2
g-debpoo.adb: In function GNAT.DEBUG_POOLS.PRINT_INFO_STDOUT.INTERNAL�:
g-debpoo.adb:1713:4: error: PHI argument is missing for edge 108->136
for PHI node
.MEM_765 = PHI <(108), (135)>
+===========================GNAT BUG DETECTED==============================+
| 6.0.0 20151215 (experimental) (x86_64-pc-linux-gnu) verify_ssa failed |
| Error detected around g-debpoo.adb:1713:4 |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html. |
| Use a subject line meaningful to you and us to track the bug. |
| Include the entire contents of this bug box in the report. |
| Include the exact command that you entered. |
| Also include sources listed below. |
+==========================================================================+
raised TYPES.UNRECOVERABLE_ERROR : comperr.adb:406
...