[Bug middle-end/50609] New: [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[Bug middle-end/50609] New: [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

             Bug #: 50609
           Summary: [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c
                    compilation,  -O2 -flto (ICE)
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hp@gcc.gnu.org
                CC: artyom.shinkaroff@gmail.com, hjl.tools@gmail.com,
                    hp@gcc.gnu.org
        Depends on: 50607


+++ This bug was initially created as a clone of Bug #50607 +++

See PR50607#c1.

The SEGV happens in lto1. Here's a gdb backtrace (N.B. optimized code on a
x86_64 host) running lto1 with "-melf -quiet -dumpdir
/tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/testsuite/gcc/ -dumpbase pr23135.x6
-auxbase-strip /tmp/ccSn7Zx5.lto.o -O2 -w -version -flto-partition=none
-fresolution=pr23135.res pr23135.o -o pr23135.s":

(gdb) r                                       
The program being debugged has been started already.
Start it from the beginning? (y or n) y

Starting program: /tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/lto1 -melf -quiet
-dumpdir /tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/testsuite/gcc/ -dumpbase
pr23135.x6 -auxbase-strip /tmp/ccSn7Zx5.lto.o -O2 -w -version
-flto-partition=none -fresolution=pr23135.res pr23135.o -o pr23135.s
GNU GIMPLE (GCC) version 4.7.0 20111003 (experimental) [trunk revision 179480]
(cris-elf)
        compiled by GNU C version 4.4.3 20100127 (Red Hat 4.4.3-4), GMP version
4.3.0, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU GIMPLE (GCC) version 4.7.0 20111003 (experimental) [trunk revision 179480]
(cris-elf)
        compiled by GNU C version 4.4.3 20100127 (Red Hat 4.4.3-4), GMP version
4.3.0, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096

Program received signal SIGSEGV, Segmentation fault.
fold_nonarray_ctor_reference (type=<value optimized out>, ctor=<value optimized
out>, offset=<value optimized out>, 
    size=32) at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:2834
2834          tree byte_offset = DECL_FIELD_OFFSET (cfield);
(gdb) bt
#0  fold_nonarray_ctor_reference (type=<value optimized out>, ctor=<value
optimized out>, 
    offset=<value optimized out>, size=32) at
/tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:2834
#1  fold_ctor_reference (type=<value optimized out>, ctor=<value optimized
out>, offset=<value optimized out>, size=32)
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:2923
#2  0x000000000062225c in fold_const_aggregate_ref_1 (t=0x7ffff7f7ca10,
valueize=0)
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:3017
#3  0x0000000000627c10 in maybe_fold_reference (expr=0x7ffff7f7ca10, is_lhs=0
'\000')
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:232
#4  0x00000000006292c1 in fold_stmt_1 (gsi=0x7fffffffdb00, inplace=0 '\000')
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:1168
#5  0x0000000000833b1a in optimize_stmt (bb=0x7ffff7f85478, si=...) at
/tmp/hpautotest-gcc1/gcc/gcc/tree-ssa-dom.c:2133
#6  0x00000000008347ad in dom_opt_enter_block (walk_data=<value optimized out>,
bb=0x7ffff7f85478)
    at /tmp/hpautotest-gcc1/gcc/gcc/tree-ssa-dom.c:1686
#7  0x00000000009d7228 in walk_dominator_tree (walk_data=0x7fffffffdc50,
bb=0x7ffff7f85478)
    at /tmp/hpautotest-gcc1/gcc/gcc/domwalk.c:188
#8  0x000000000082ed7d in tree_ssa_dominator_optimize () at
/tmp/hpautotest-gcc1/gcc/gcc/tree-ssa-dom.c:709
#9  0x00000000006f5f82 in execute_one_pass (pass=0xee6160) at
/tmp/hpautotest-gcc1/gcc/gcc/passes.c:2064
#10 0x00000000006f6295 in execute_pass_list (pass=0xee6160) at
/tmp/hpautotest-gcc1/gcc/gcc/passes.c:2119
#11 0x00000000006f62a7 in execute_pass_list (pass=0xe606e0) at
/tmp/hpautotest-gcc1/gcc/gcc/passes.c:2120
#12 0x00000000007d92f8 in tree_rest_of_compilation (fndecl=0x7ffff7f74800)
    at /tmp/hpautotest-gcc1/gcc/gcc/tree-optimize.c:420
#13 0x00000000004e836e in cgraph_expand_function (node=0x7ffff7f7f120)
    at /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1805
#14 0x00000000004eb72a in cgraph_expand_all_functions () at
/tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1864
#15 cgraph_optimize () at /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:2141
#16 0x0000000000475344 in lto_main () at
/tmp/hpautotest-gcc1/gcc/gcc/lto/lto.c:2868
#17 0x00000000007776a1 in compile_file () at
/tmp/hpautotest-gcc1/gcc/gcc/toplev.c:565
#18 do_compile () at /tmp/hpautotest-gcc1/gcc/gcc/toplev.c:1925
#19 0x0000000000778212 in toplev_main (argc=17, argv=0x7fffffffe008) at
/tmp/hpautotest-gcc1/gcc/gcc/toplev.c:2001
#20 0x00000037d421eb1d in __libc_start_main () from /lib64/libc.so.6
#21 0x0000000000459959 in _start ()

I'll re-run that with all *.o rebuilt with "-O0 -g3".

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2011-10-04 00:22:11 UTC ---
Last known working revision:first known failing 179447:179464, and 179462 is
the only related change in that range, so it's confirmed that's the revision
exposing or causing this regression.

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

--- Comment #2 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2011-10-04 01:50:59 UTC ---
So, at r179480, I get, for lto1 and everything related rebuilt with CFLAGS=-g3:

(gdb) set args -melf -quiet -dumpdir
/tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/testsuite/gcc/ -dumpbase pr23135.x6
-auxbase-strip /tmp/ccJhtPAy.lto.o -O2 -w -version -flto-partition=none
-fresolution=pr23135.res pr23135.o  -o pr23135.s
(gdb) r
Starting program: /tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/lto1 -melf -quiet
-dumpdir /tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/testsuite/gcc/ -dumpbase
pr23135.x6 -auxbase-strip /tmp/ccJhtPAy.lto.o -O2 -w -version
-flto-partition=none -fresolution=pr23135.res pr23135.o  -o pr23135.s
GNU GIMPLE (GCC) version 4.7.0 20111003 (experimental) [trunk revision 179480]
(cris-elf)
        compiled by GNU C version 4.4.3 20100127 (Red Hat 4.4.3-4), GMP version
4.3.0, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU GIMPLE (GCC) version 4.7.0 20111003 (experimental) [trunk revision 179480]
(cris-elf)
        compiled by GNU C version 4.4.3 20100127 (Red Hat 4.4.3-4), GMP version
4.3.0, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096

Program received signal SIGSEGV, Segmentation fault.
0x000000000078bae8 in fold_nonarray_ctor_reference (type=0x7ffff7ece5e8,
ctor=0x7ffff7f8dab0, offset=0, size=32)
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:2834
2834          tree byte_offset = DECL_FIELD_OFFSET (cfield);
Missing separate debuginfos, use: debuginfo-install glibc-2.11.1-1.x86_64
(gdb) p cfield
$1 = (tree) 0x0
(gdb) bt
#0  0x000000000078bae8 in fold_nonarray_ctor_reference (type=0x7ffff7ece5e8,
ctor=0x7ffff7f8dab0, offset=0, size=32)
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:2834
#1  0x000000000078c93d in fold_ctor_reference (type=0x7ffff7ece5e8,
ctor=0x7ffff7f8dab0, offset=0, size=32)
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:2923
#2  0x000000000078d210 in fold_const_aggregate_ref_1 (t=0x7ffff7f7ca10,
valueize=0)
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:3017
#3  0x000000000078d3dd in fold_const_aggregate_ref (t=0x7ffff7f7ca10)
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:3039
#4  0x000000000077e0ef in maybe_fold_reference (expr=0x7ffff7f7ca10, is_lhs=0
'\000')
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:232
#5  0x000000000077eeee in fold_gimple_assign (si=0x7fffffffdac0) at
/tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:298
#6  0x0000000000783a3e in fold_stmt_1 (gsi=0x7fffffffdac0, inplace=0 '\000')
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:1168
#7  0x00000000007843cc in fold_stmt (gsi=0x7fffffffdac0) at
/tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:1304
#8  0x0000000000af258f in optimize_stmt (bb=0x7ffff7f85478, si=...) at
/tmp/hpautotest-gcc1/gcc/gcc/tree-ssa-dom.c:2133
#9  0x0000000000af1254 in dom_opt_enter_block (walk_data=0x7fffffffdc70,
bb=0x7ffff7f85478)
    at /tmp/hpautotest-gcc1/gcc/gcc/tree-ssa-dom.c:1686
#10 0x0000000000d97b8c in walk_dominator_tree (walk_data=0x7fffffffdc70,
bb=0x7ffff7f85478)
    at /tmp/hpautotest-gcc1/gcc/gcc/domwalk.c:188
#11 0x0000000000aec22b in tree_ssa_dominator_optimize () at
/tmp/hpautotest-gcc1/gcc/gcc/tree-ssa-dom.c:709
#12 0x00000000008dabbb in execute_one_pass (pass=0x1377160) at
/tmp/hpautotest-gcc1/gcc/gcc/passes.c:2064
#13 0x00000000008dada9 in execute_pass_list (pass=0x1377160) at
/tmp/hpautotest-gcc1/gcc/gcc/passes.c:2119
#14 0x00000000008dadca in execute_pass_list (pass=0x12f0ba0) at
/tmp/hpautotest-gcc1/gcc/gcc/passes.c:2120
#15 0x0000000000a56d01 in tree_rest_of_compilation (fndecl=0x7ffff7f74800)
    at /tmp/hpautotest-gcc1/gcc/gcc/tree-optimize.c:420
#16 0x0000000000557390 in cgraph_expand_function (node=0x7ffff7f7f120)
    at /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1805
#17 0x000000000055754f in cgraph_expand_all_functions () at
/tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1864
#18 0x0000000000557ca1 in cgraph_optimize () at
/tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:2141
#19 0x000000000048e19a in lto_main () at
/tmp/hpautotest-gcc1/gcc/gcc/lto/lto.c:2868
#20 0x00000000009b0ca9 in compile_file () at
/tmp/hpautotest-gcc1/gcc/gcc/toplev.c:565
#21 0x00000000009b2fa3 in do_compile () at
/tmp/hpautotest-gcc1/gcc/gcc/toplev.c:1925
#22 0x00000000009b311a in toplev_main (argc=17, argv=0x7fffffffe008) at
/tmp/hpautotest-gcc1/gcc/gcc/toplev.c:2001
#23 0x0000000000490f90 in main (argc=17, argv=0x7fffffffe008) at
/tmp/hpautotest-gcc1/gcc/gcc/main.c:36

HTH!

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |cris-axis-elf
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-10-04
   Target Milestone|---                         |4.7.0
     Ever Confirmed|0                           |1

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-04 10:39:46 UTC ---
(gdb) bt
#0  0x000000000078bae8 in fold_nonarray_ctor_reference (type=0x7ffff7ece5e8,
ctor=0x7ffff7f8dab0, offset=0, size=32)
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:2834

can you show what ctor is here?  Thus, debug_tree (ctor)?

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW

--- Comment #4 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2011-10-04 14:19:28 UTC ---
(In reply to comment #3)
> can you show what ctor is here?  Thus, debug_tree (ctor)?

Program received signal SIGSEGV, Segmentation fault.
0x000000000078bae8 in fold_nonarray_ctor_reference (type=0x7ffff7ece5e8,
ctor=0x7ffff7f8dab0, offset=0, size=32)
    at /tmp/hpautotest-gcc1/gcc/gcc/gimple-fold.c:2834
2834          tree byte_offset = DECL_FIELD_OFFSET (cfield);
Missing separate debuginfos, use: debuginfo-install glibc-2.11.1-1.x86_64
(gdb) p type
$1 = (tree) 0x7ffff7ece5e8
(gdb) pt
 <integer_type 0x7ffff7ece5e8 int public SI
    size <integer_cst 0x7ffff7ec5b20 type <integer_type 0x7ffff7ece0a8
bitsizetype> constant 32>
    unit size <integer_cst 0x7ffff7ec5b40 type <integer_type 0x7ffff7ece000
sizetype> constant 4>
    align 8 symtab 0 alias set 2 canonical type 0x7ffff7ece5e8 precision 32 min
<integer_cst 0x7ffff7ec5e40 -2147483648> max <integer_cst 0x7ffff7ec5e60
2147483647>
    pointer_to_this <pointer_type 0x7ffff7edc2a0>>
(gdb) p ctor
$2 = (tree) 0x7ffff7f8dab0
(gdb) pt
 <constructor 0x7ffff7f8dab0
    type <vector_type 0x7ffff7f7d0a8 vecint
        type <integer_type 0x7ffff7ece5e8 int public SI
            size <integer_cst 0x7ffff7ec5b20 constant 32>
            unit size <integer_cst 0x7ffff7ec5b40 constant 4>
            align 8 symtab 0 alias set 2 canonical type 0x7ffff7ece5e8
precision 32 min <integer_cst 0x7ffff7ec5e40 -2147483648> max <integer_cst
0x7ffff7ec5e60 2147483647>
            pointer_to_this <pointer_type 0x7ffff7edc2a0>>
        DI
        size <integer_cst 0x7ffff7ec5fa0 constant 64>
        unit size <integer_cst 0x7ffff7ec5fc0 constant 8>
        align 64 symtab 0 alias set -1 canonical type 0x7ffff7f7d150 nunits 2
        pointer_to_this <pointer_type 0x7ffff7f7d5e8>>
    constant lngt 2
    val <integer_cst 0x7ffff7f75a80 type <integer_type 0x7ffff7ece5e8 int>
constant -150>
    val <integer_cst 0x7ffff7f75b60 type <integer_type 0x7ffff7ece5e8 int>
constant -100>>
(gdb)

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-04 14:41:04 UTC ---
Hm, this means we have an unfolded vector CONSTRUCTOR, we should have a
VECTOR_CST here.  Or the following, reproducible on x86_64 with -m32:

typedef int v4si __attribute__((vector_size(16)));
int x;
static const v4si v = { (int)&x, 2, 3, 4 };
int foo ()
{
  return v[0];
}

I have a patch.  You might want to check it.



Index: gcc/gimple-fold.c
===================================================================
--- gcc/gimple-fold.c   (revision 179505)
+++ gcc/gimple-fold.c   (working copy)
@@ -2747,10 +2747,12 @@ fold_array_ctor_reference (tree type, tr
   double_int low_bound, elt_size;
   double_int index, max_index;
   double_int access_index;
-  tree domain_type = TYPE_DOMAIN (TREE_TYPE (ctor));
+  tree domain_type = NULL_TREE;
   HOST_WIDE_INT inner_offset;

   /* Compute low bound and elt size.  */
+  if (TREE_CODE (ctor) == ARRAY_TYPE)
+    domain_type = TYPE_DOMAIN (TREE_TYPE (ctor));
   if (domain_type && TYPE_MIN_VALUE (domain_type))
     {
       /* Static constructors for variably sized objects makes no sense.  */
@@ -2917,7 +2919,8 @@ fold_ctor_reference (tree type, tree cto
   if (TREE_CODE (ctor) == CONSTRUCTOR)
     {

-      if (TREE_CODE (TREE_TYPE (ctor)) == ARRAY_TYPE)
+      if (TREE_CODE (TREE_TYPE (ctor)) == ARRAY_TYPE
+         || TREE_CODE (TREE_TYPE (ctor)) == VECTOR_TYPE)
        return fold_array_ctor_reference (type, ctor, offset, size);
       else
        return fold_nonarray_ctor_reference (type, ctor, offset, size);

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

--- Comment #6 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2011-10-04 15:32:22 UTC ---
Created attachment 25411
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25411
Same patch, just as an attachment, for those that want to re-use it.

In testing now.  Will know in 3h.

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[rguenther at suse dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

--- Comment #7 from rguenther at suse dot de <rguenther at suse dot de> 2011-10-04 15:50:37 UTC ---
On Tue, 4 Oct 2011, hp at gcc dot gnu.org wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609
> 
> --- Comment #6 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2011-10-04 15:32:22 UTC ---
> Created attachment 25411
>   --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25411
> Same patch, just as an attachment, for those that want to re-use it.

Has a typo btw, correct version posted here:

http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00230.html

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

--- Comment #8 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2011-10-04 20:05:17 UTC ---
(In reply to comment #7)
> http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00230.html

This patch fixed the gcc.c-torture/execute/pr23135.c regression for cris-elf.
Thanks!

(So did the previous version, quite uninterestingly.  Neither affected the
regression in PR50607.)

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-05 09:31:44 UTC ---
Author: rguenth
Date: Wed Oct  5 09:31:40 2011
New Revision: 179540

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179540
Log:
2011-10-05  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/50609
    * gimple-fold.c (fold_array_ctor_reference): Also handle
    vector typed constructors.
    (fold_ctor_reference): Dispatch to fold_array_ctor_reference
    for vector typed constructors.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-fold.c

[Bug middle-end/50609] [4.7 Regression] FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50609

Richard Guenther <rguenth at gcc dot gnu.org> changed:

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

--- Comment #10 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-05 09:32:13 UTC ---
Fixed.