[Bug target/31535] New: ICE on attempt to put SPE vector variables in SDA

[Bug target/31535] New: ICE on attempt to put SPE vector variables in SDA

[m dot reszat at kostal dot com]

I ran the test case on 3.4.1 through 4.1.2, all with the same error message.
This bug may be related to #25160.

Test Case:
#include <spe.h>

__ev64_fs__ x;

int main(void)
{
   x = __ev_fsabs(x);
   return(0);
}

O.K., x put in .bss:
C:\Controller>powerpc-elf-eabispe-gcc -c -Wa,-alhs=test.lst -fverbose-asm
-msdata=eabi -G 7 test.c

ERR, x put in .sbss (GCC4.1.2):
C:\Controller>powerpc-elf-eabispe-gcc -c -Wa,-alhs=test.lst -fverbose-asm
-msdata=eabi -G 8 test.c
test.c: In function 'main':
test.c:10: internal compiler error: in print_operand, at
config/rs6000/rs6000.c:
10785
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: ICE on attempt to put SPE vector variables in SDA
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: m dot reszat at kostal dot com
  GCC host triplet: i686-pc-cygwin
GCC target triplet: powerpc-elf-eabispe


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31535

[Bug target/31535] ICE on attempt to put SPE vector variables in SDA

[m dot reszat at kostal dot com]

------- Comment #1 from m dot reszat at kostal dot com  2007-04-12 10:34 -------
SDA relative access renders useless for the vector load/store opcodes, as the
displacement is limited to +0..+248. Hence, the compiler should not try anyway. 

With this bug persisting, one has to limit SDA access to variables smaller than
8 bytes (-G 7), which makes the rest of the code less efficient.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31535

[Bug target/31535] ICE on attempt to put SPE vector variables in SDA

[froydnj at gcc dot gnu dot org]

------- Comment #2 from froydnj at gcc dot gnu dot org  2008-01-28 18:32 -------
Subject: Bug 31535

Author: froydnj
Date: Mon Jan 28 18:31:19 2008
New Revision: 131914

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=131914
Log:
gcc/
        PR 31535
        * config/rs6000/rs6000.c (small_data_operand): Vectors and floats
        are not legitimate small data references on SPE targets.

gcc/testsuite/
        PR 31535
        * gcc.target/powerpc/spe-small-data-1.c: New test.
        * gcc.target/powerpc/spe-small-data-2.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/powerpc/spe-small-data-1.c
    trunk/gcc/testsuite/gcc.target/powerpc/spe-small-data-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31535

[Bug target/31535] ICE on attempt to put SPE vector variables in SDA

[froydnj at gcc dot gnu dot org]

------- Comment #3 from froydnj at gcc dot gnu dot org  2008-11-12 14:32 -------
Fixed in 4.3.


-- 

froydnj at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31535