[Bug target/52154] New: va_arg with empty aligned structure fails for MIPS EABI32

[Bug target/52154] New: va_arg with empty aligned structure fails for MIPS EABI32

[rsandifo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52154

             Bug #: 52154
           Summary: va_arg with empty aligned structure fails for MIPS
                    EABI32
    Classification: Unclassified
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: rsandifo@gcc.gnu.org


Created attachment 26605
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26605
Failing testcase

The attached test fails on MIPS EABI32.  This doesn't seem to be a regression,
so a fix isn't suitable at this stage of 4.7.

[Bug target/52154] va_arg with empty aligned structure fails for MIPS EABI32

[rsandifo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52154

rsandifo@gcc.gnu.org <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |mipsisa*-*-elf*
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-02-07
     Ever Confirmed|0                           |1

[Bug target/52154] va_arg with empty aligned structure fails for MIPS EABI32

[rsandifo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52154

--- Comment #1 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 2012-02-07 19:15:15 UTC ---
Author: rsandifo
Date: Tue Feb  7 19:15:10 2012
New Revision: 183977

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183977
Log:
gcc/
    PR middle-end/24306
    * config/mips/mips.c (mips_std_gimplify_va_arg_expr): New function.
    (mips_gimplify_va_arg_expr): Call it instead of
    std_gimplify_va_arg_expr.

gcc/testsuite/
    PR middle-end/24306
    PR target/52154
    * lib/target-supports.exp (check_effective_target_mips_eabi): New.
    * gcc.target/mips/va-arg-1.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/mips/va-arg-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/mips/mips.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/lib/target-supports.exp