[Bug c/66063] New: under O2 level ,compiler ICE: internal compiler error: in build_int_cst_wide, at tree.c:1222

[Bug c/66063] New: under O2 level ,compiler ICE: internal compiler error: in build_int_cst_wide, at tree.c:1222

[huangcunjian at huawei dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66063

            Bug ID: 66063
           Summary: under O2 level ,compiler ICE: internal compiler error:
                    in build_int_cst_wide, at tree.c:1222
           Product: gcc
           Version: 4.7.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: huangcunjian at huawei dot com
  Target Milestone: ---

case context:
int main(){
__attribute__((vector_size(16)))l_605= {0x111,0x222,0x222,0x222};
l_605=(l_605>>1)>>1;
return 0;

}


target:
Target: x86_64-suse-linux


command:
 ../../compiler/hcc-x86_64-linux/bin/gcc-4.7 test_2.c 

compiler output:

test_2.c: In function ‘main’:
test_2.c:3:1: internal compiler error: in build_int_cst_wide, at tree.c:1222
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
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Subject: [Bug c/66064] New:=?UTF-8?Q? under O2 level ，x86-64 compiler ICE，informance：internal compiler error?=: in fold_convert_loc, at fold-const.c:1894
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66064

            Bug ID: 66064
           Summary: under O2 level ，x86-64 compiler
                    ICE，informance：internal compiler error: in
                    fold_convert_loc, at fold-const.c:1894
           Product: gcc
           Version: 4.7.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: huangcunjian at huawei dot com
  Target Milestone: ---

case context：
__attribute__ ((vector_size (16))) g_73 = {0x15FE687EL, 0x5827DF98L,
0xF8411272L, 0x235E695EL};
__attribute__ ((vector_size (16))) g_1124;

int func_1(void)
{  
    __attribute__ ((vector_size (16))) l_1117 = {0x15FE688EL, 0x5827DF98L,
0xF8411272L, 0x235E695EL};
    __attribute__ ((vector_size (16))) zhong = ( g_73 <= g_73);
         g_1124 = (((g_73 < l_1117) == (zhong)) << 9)    ;

    return 0;
}
target :x86_64-suse-linux
host: x86_64-suse-linux
build:x86_64-suse-linux

command:
../../compiler/hcc-x86_64-linux/bin/gcc-4.7 test_1.c -O2

output:
test_1.c:11:1: internal compiler error: in fold_convert_loc, at
fold-const.c:1894
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
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Subject: [Bug c++/60277] Bogus "inline function virtual ..." used but never defined
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id`277

Mikhail Maltsev <maltsevm at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |maltsevm at gmail dot com

--- Comment #3 from Mikhail Maltsev <maltsevm at gmail dot com> ---
I also wanted to report this bug (it reproduces on trunk), but found this
report and an old duplicate: PR11067 which is resolved as WONTFIX.

IMHO it's not too difficult to fix, including the case "f->Foo::func();"
(though I did not regtest the fix, so I can't say for sure).

The question is: should this warning be emitted or not? Clang does not produce
such warning.

[Bug c/66063] under O2 level ,compiler ICE: internal compiler error: in build_int_cst_wide, at tree.c:1222

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66063

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
             Status|UNCONFIRMED                 |RESOLVED
      Known to work|                            |4.9.0
            Version|4.7.1                       |4.8.4
         Resolution|---                         |FIXED
      Known to fail|                            |4.6.4, 4.7.3

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed, not a regression though, thus fixed.