gcc/ChangeLog:
2009-05-28 Dave Korn <dave.korn.cygwin@gmail.com>
PR target/37216
* configure.ac (HAVE_GAS_ALIGNED_COMM): Add autoconf test and
macro definition for support of three-operand format aligned
.comm directive in assembler on cygwin/pe/mingw target OS.
* configure: Regenerate.
* config.in: Regenerate.
* config/i386/winnt.c (i386_pe_asm_output_aligned_decl_common): Use
aligned form of .comm directive if -mpe-aligned-commons is in effect.
* config/i386/cygming.opt (-mpe-aligned-commons): Add new option.
* doc/invoke.texi (-mpe-aligned-commons): Document new target option.
* doc/tm.texi (ASM_OUTPUT_COMMON): Document zero size commons.
gcc/testsuite/ChangeLog:
2009-05-28 Dave Korn <dave.korn.cygwin@gmail.com>
Uros Bizjak <ubizjak@gmail.com>
Danny Smith <dansmister@gmail.com>
PR target/37216
* lib/target-supports.exp (check_effective_target_pe_aligned_commons):
New function.
* gcc.target/i386/pr37216.c: New test source file.
* gcc.dg/compat/struct-layout-1_generate.c (dg_options[]): No longer
use -fno-common for testing Cygwin and MinGW targets.
Co-Authored-By: Danny Smith <dansmister@gmail.com>
Co-Authored-By: Uros Bizjak <ubizjak@gmail.com>
From-SVN: r147950
