[Bug rtl-optimization/33347] [4.3 Regression] gcc.c-torture/compile/20000804-1.c ICEs at -O3 -funroll-loops

[Bug rtl-optimization/33347] [4.3 Regression] gcc.c-torture/compile/20000804-1.c ICEs at -O3 -funroll-loops

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2007-09-08 00:46 -------
ICE:

/home/apinski/src/local/gcc/gcc/testsuite/gcc.c-torture/compile/20000804-1.c:
In function 'f':^M
/home/apinski/src/local/gcc/gcc/testsuite/gcc.c-torture/compile/20000804-1.c:19:
error: invalid rtl sharing found in the insn^M
(insn 261 260 262 2
/home/apinski/src/local/gcc/gcc/testsuite/gcc.c-torture/compile/20000804-1.c:19
(set (subreg:TI (reg:CDI 372) 0)^M
        (unspec:TI [^M
                (subreg:TI (reg:CDI 372) 0)^M
                (reg:TI 377)^M
                (reg:TI 376)^M
            ] 17)) -1 (nil))^M
/home/apinski/src/local/gcc/gcc/testsuite/gcc.c-torture/compile/20000804-1.c:19:
error: shared rtx^M
(subreg:TI (reg:CDI 372) 0)^M
/home/apinski/src/local/gcc/gcc/testsuite/gcc.c-torture/compile/20000804-1.c:19:
internal compiler error: internal consistency failure^M
Please submit a full bug report,^M
with preprocessed source if appropriate.^M
See <http://gcc.gnu.org/bugs.html> for instructions.^M
compiler exited with status 1


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33347

[Bug rtl-optimization/33347] New: [4.3 Regression] gcc.c-torture/compile/20000804-1.c ICEs at -O3 -funroll-loops

[pinskia at gcc dot gnu dot org]

+FAIL: gcc.c-torture/compile/20000804-1.c  -O3 -fomit-frame-pointer
-funroll-loops  (internal compiler error)
+FAIL: gcc.c-torture/compile/20000804-1.c  -O3 -fomit-frame-pointer
-funroll-loops  (test for excess errors)
+FAIL: gcc.c-torture/compile/20000804-1.c  -O3 -fomit-frame-pointer
-funroll-all-loops -finline-functions  (internal compiler error)
+FAIL: gcc.c-torture/compile/20000804-1.c  -O3 -fomit-frame-pointer
-funroll-all-loops -finline-functions  (test for excess errors)

This showed up between revision 128143 and 128203


-- 
           Summary: [4.3 Regression] gcc.c-torture/compile/20000804-1.c ICEs
                    at -O3 -funroll-loops
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
GCC target triplet: spu-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33347

[Bug rtl-optimization/33347] [4.3 Regression] gcc.c-torture/compile/20000804-1.c ICEs at -O3 -funroll-loops

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-09-20 23:01 -------
(gdb) p *pass
$1 = {name = 0x88ddc09 "dce", gate = 0x8745bef <gate_ud_dce>, execute =
0x8745b5c <rest_of_handle_ud_dce>, sub = 0x0,
  next = 0x89003e0, static_pass_number = 163, tv_id = 105, properties_required
= 0, properties_provided = 0,
  properties_destroyed = 0, todo_flags_start = 524288, todo_flags_finish =
132099, letter = 119 'w'}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33347

[Bug rtl-optimization/33347] [4.3 Regression] gcc.c-torture/compile/20000804-1.c ICEs at -O3 -funroll-loops

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-09-20 23:02 -------
Ignore that the pass DCE just happens to have the checking after it.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33347

[Bug target/33347] [4.3 Regression] gcc.c-torture/compile/20000804-1.c ICEs at -O3 -funroll-loops

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2007-09-20 23:09 -------
Turns out this was a target issue, around line 640 of spu.c, we did:
    emit_insn (gen_selb (dst, dst, shift_reg, mask));

So I just added a copy_rtx around the dst.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pinskia at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
          Component|rtl-optimization            |target
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-09-20 23:09:58
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33347

[Bug target/33347] [4.3 Regression] gcc.c-torture/compile/20000804-1.c ICEs at -O3 -funroll-loops

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2007-09-28 22:41 -------
Subject: Bug 33347

Author: pinskia
Date: Fri Sep 28 22:41:20 2007
New Revision: 128874

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128874
Log:
2007-09-28  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/33347
        * config/spu/spu.c (spu_expand_insv): Call copy_rtx on the second
        argument to gen_selb.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/spu/spu.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33347

[Bug target/33347] [4.3 Regression] gcc.c-torture/compile/20000804-1.c ICEs at -O3 -funroll-loops

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2007-09-28 22:42 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33347