[Bug middle-end/37009] No need to align stack when incoming stack is aligned

[hjl at gcc dot gnu dot org]

------- Comment #2 from hjl at gcc dot gnu dot org  2008-08-04 13:53 -------
Subject: Bug 37009

Author: hjl
Date: Mon Aug  4 13:51:36 2008
New Revision: 138621

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=138621
Log:
gcc/

2008-08-04  H.J. Lu  <[EMAIL PROTECTED]>

        PR middle-end/37009
        * cfgexpand.c (expand_stack_alignment): Check parm_stack_boundary
        for incoming stack boundary.

        * function.c (assign_parm_find_entry_rtl): Update
        parm_stack_boundary.

        * function.h (rtl_data): Add parm_stack_boundary.

        * config/i386/i386.c (ix86_finalize_stack_realign_flags): Check
        parm_stack_boundary for incoming stack boundary.

gcc/testsuite/

2008-08-04  H.J. Lu  <[EMAIL PROTECTED]>

        PR middle-end/37009
        * gcc.dg/torture/stackalign/alloca-2.c: New.
        * gcc.dg/torture/stackalign/alloca-3.c: Likewise.
        * gcc.dg/torture/stackalign/vararg-3.c: Likewise.
        * gcc.target/i386/incoming-1.c: Likewise.
        * gcc.target/i386/incoming-2.c: Likewise.
        * gcc.target/i386/incoming-3.c: Likewise.
        * gcc.target/i386/incoming-4.c: Likewise.

Added:
    branches/stack/gcc/testsuite/gcc.dg/torture/stackalign/alloca-2.c
    branches/stack/gcc/testsuite/gcc.dg/torture/stackalign/alloca-3.c
    branches/stack/gcc/testsuite/gcc.dg/torture/stackalign/vararg-3.c
    branches/stack/gcc/testsuite/gcc.target/i386/incoming-1.c
    branches/stack/gcc/testsuite/gcc.target/i386/incoming-2.c
    branches/stack/gcc/testsuite/gcc.target/i386/incoming-3.c
    branches/stack/gcc/testsuite/gcc.target/i386/incoming-4.c
Modified:
    branches/stack/gcc/ChangeLog.stackalign
    branches/stack/gcc/cfgexpand.c
    branches/stack/gcc/config/i386/i386.c
    branches/stack/gcc/function.c
    branches/stack/gcc/function.h
    branches/stack/gcc/testsuite/ChangeLog.stackalign


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37009