[Bug tree-optimization/45071] New: [4.6 Regression] ICE: tree check: expected ssa_name, have integer_cst in inhibit_phi_insertion, at tree-ssa-pre.c:3278 with -ftree-pre -ftree-vectorize

[Bug tree-optimization/45071] New: [4.6 Regression] ICE: tree check: expected ssa_name, have integer_cst in inhibit_phi_insertion, at tree-ssa-pre.c:3278 with -ftree-pre -ftree-vectorize

[zsojka at seznam dot cz]

Command line:
$ gcc -O -ftree-pre -ftree-vectorize testcase.c
or
$ gcc -O2 -ftree-vectorize testcase.c
or
$ gcc -O3 testcase.c

Compiler output:
$ gcc -O -ftree-pre -ftree-vectorize testcase.c
testcase.c: In function 'f1':
testcase.c:27:1: internal compiler error: tree check: expected ssa_name, have
integer_cst in inhibit_phi_insertion, at tree-ssa-pre.c:3278
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r162456 - crash
r162056 - crash
r161659 - OK


-- 
           Summary: [4.6 Regression] ICE: tree check: expected ssa_name,
                    have integer_cst in inhibit_phi_insertion, at tree-ssa-
                    pre.c:3278 with -ftree-pre -ftree-vectorize
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45071

[Bug tree-optimization/45071] [4.6 Regression] ICE: tree check: expected ssa_name, have integer_cst in inhibit_phi_insertion, at tree-ssa-pre.c:3278 with -ftree-pre -ftree-vectorize

[zsojka at seznam dot cz]

------- Comment #1 from zsojka at seznam dot cz  2010-07-26 06:06 -------
Created an attachment (id=21309)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21309&action=view)
reduced testcase (from g++.dg/opt/new1.C)

Command line:
$ gcc -O -ftree-pre -ftree-vectorize pr45071.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45071

[Bug tree-optimization/45071] [4.6 Regression] ICE: tree check: expected ssa_name, have integer_cst in inhibit_phi_insertion, at tree-ssa-pre.c:3278 with -ftree-pre -ftree-vectorize

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2010-07-26 10:33 -------
I have a patch.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-07-26 10:33:53
               date|                            |
   Target Milestone|---                         |4.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45071

[Bug tree-optimization/45071] [4.6 Regression] ICE: tree check: expected ssa_name, have integer_cst in inhibit_phi_insertion, at tree-ssa-pre.c:3278 with -ftree-pre -ftree-vectorize

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-07-26 12:48 -------
Fixed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45071

[Bug tree-optimization/45071] [4.6 Regression] ICE: tree check: expected ssa_name, have integer_cst in inhibit_phi_insertion, at tree-ssa-pre.c:3278 with -ftree-pre -ftree-vectorize

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2010-07-26 12:49 -------
Subject: Bug 45071

Author: rguenth
Date: Mon Jul 26 12:48:37 2010
New Revision: 162534

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162534
Log:
2010-07-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/45071
        * tree-ssa-sccvn.c  (vn_reference_maybe_forwprop_address): Always
        adjust op->opcode.

        * gcc.dg/pr45071.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr45071.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45071