CVS commit: src/external/gpl3/gcc/dist/gcc/config/i386

["Joerg Sonnenberger" <joerg%netbsd.org@localhost>]

Module Name:    src
Committed By:   joerg
Date:           Fri Sep 14 13:00:01 UTC 2012

Modified Files:
        src/external/gpl3/gcc/dist/gcc/config/i386: i386.c netbsd-elf.h
            netbsd64.h

Log Message:
Fix GCC to correctly implement the i386 psABI on NetBSD.
This consists of two parts:
- for NetBSD/i386 and NetBSD/AMD64 with -m32, use a default stack
  alignment of 23bit as specified by the ABI
- ensure that double and long long variables on the stack are by default
  only aligned to 32bit, if there is nothing else in the function
  needing a larger stack alignment

The combination ensures that SSE variables on the stack trigger the
realignment logic, but just using double or long long doesn't.


To generate a diff of this commit:
cvs rdiff -u -r1.1.1.1 -r1.2 \
    src/external/gpl3/gcc/dist/gcc/config/i386/i386.c \
    src/external/gpl3/gcc/dist/gcc/config/i386/netbsd64.h
cvs rdiff -u -r1.2 -r1.3 \
    src/external/gpl3/gcc/dist/gcc/config/i386/netbsd-elf.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.