[Bug target/44332] ICE: in copy_to_mode_reg, at explow.c:623 with -mno-sse2

[Bug target/44332] ICE: in copy_to_mode_reg, at explow.c:623 with -mno-sse2

[serowk at yandex dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44332

serowk at yandex dot ru changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |serowk at yandex dot ru

--- Comment #3 from serowk at yandex dot ru 2010-12-17 16:13:45 UTC ---
Appears with arm-iwmmx-linux-uclibcgnueabi-gcc 4.4.5

1.c:
#include <mmintrin.h>
#include <stdint.h>
#include <stdio.h>

__m64  do_some(__m64 a, int64_t count)
{
    return _mm_srli_pi16(a, count);
}

int main()
{
    __m64 a=(__m64)222LL;
    int64_t b=8;

    b=(int64_t)do_some(a, b);
    printf("%lli\n", b);

    return 0;
}

$ arm-iwmmx-linux-uclibcgnueabi-gcc 1.c -flax-vector-conversions
In file included from 1.c:1:
/opt/arm-iwmmx-linux-uclibcgnueabi/lib/gcc/arm-iwmmx-linux-uclibcgnueabi/4.4.5/include/mmintrin.h:
In function '_mm_srli_pi16':
/opt/arm-iwmmx-linux-uclibcgnueabi/lib/gcc/arm-iwmmx-linux-uclibcgnueabi/4.4.5/include/mmintrin.h:526:
internal compiler error: in copy_to_mode_reg, at explow.c:623
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug target/44332] ICE: in copy_to_mode_reg, at explow.c:623 with -mno-sse2

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44332

Steven Bosscher <steven at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
      Known to work|                            |4.8.0
         Resolution|                            |FIXED
      Known to fail|                            |4.7.1

--- Comment #4 from Steven Bosscher <steven at gcc dot gnu.org> 2012-11-11 20:53:21 UTC ---
Passes with GCC 4.7.1 and with current trunk (r193411). Both test cases
from comment #0 do not ICE anymore.

The bug from comment #3 is for another target and therefore unrelated.

[Bug target/44332] ICE: in copy_to_mode_reg, at explow.c:623 with -mno-sse2

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44332

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |DUPLICATE

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---


*** This bug has been marked as a duplicate of bug 47948 ***

[Bug target/44332] New: ICE: in copy_to_mode_reg, at explow.c:623 with -mno-sse2

[zsojka at seznam dot cz]

Compiler output:
$ gcc -mno-sse2 testcase.c
testcase.c: In function 'foo':
testcase.c:6:6: internal compiler error: in copy_to_mode_reg, at explow.c:635
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r160048 - crash
r153685 - crash
4.4 r158133 - crash

----- testcase.c -----
typedef __attribute__((vector_size(16))) char type;

extern void bar(type);
void foo(type x) { bar(x); }
----------------------


A bit different testcase gives:

$ gcc -mno-sse2 testcase2.c
testcase2.c: In function 'foo':
testcase2.c:4:29: internal compiler error: in emit_move_insn, at expr.c:3428
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

----- testcase2.c -----
typedef __attribute__((vector_size(16))) char type;

extern void bar(type);
void foo(void) { type x; bar(x); }
-----------------------


-- 
           Summary: ICE: in copy_to_mode_reg, at explow.c:623 with -mno-sse2
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        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=44332

[Bug target/44332] ICE: in copy_to_mode_reg, at explow.c:623 with -mno-sse2

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2010-05-30 15:21 -------
Well, "doctor it hurts when I do that ..."


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44332

[Bug target/44332] ICE: in copy_to_mode_reg, at explow.c:623 with -mno-sse2

[steven at gcc dot gnu dot org]

------- Comment #2 from steven at gcc dot gnu dot org  2010-05-30 16:55 -------
Should not ICE, though.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44332