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| author | Jakub Jelinek <jakub@redhat.com> | 2000-06-09 16:31:54 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2000-06-09 16:31:54 +0200 |
| commit | e95b1e6a2ed1031b5ac054f4e457d001a981d726 (patch) | |
| tree | 7149b8de2f1865dbf6ad01309fa17d61e3392647 /gcc/configure.in | |
| parent | dba1acea53d877f27d60ff12cb99f2ff442aa358 (diff) | |
| download | gcc-e95b1e6a2ed1031b5ac054f4e457d001a981d726.zip gcc-e95b1e6a2ed1031b5ac054f4e457d001a981d726.tar.gz gcc-e95b1e6a2ed1031b5ac054f4e457d001a981d726.tar.bz2 | |
configure.in: Check whether gas supports -relax.
* configure.in: Check whether gas supports -relax.
* configure, config.in: Rebuilt.
* config/sparc/sparc.h (ASM_RELAX_SPEC): Define.
(EXTRA_SPECS): Add asm_relax.
(ASM_SPEC): Add %(asm_relax).
(TARGET_SWITCHES): Add -mrelax and -mno-relax.
* config/sparc/linux64.h (LINK_ARCH_SPEC): Rename to LINK_SPEC.
(LINK_SPEC): Pass -relax to linker unless -mno-relax or -r.
(ASM_SPEC): Add %(asm_relax).
* config/sparc/linux.h (LINK_SPEC, ASM_SPEC): Likewise.
* config/sparc/sparc.c (output_sibcall): If HAVE_AS_RELAX_OPTION,
never use sethi/jmpl for leaf tail calls. Use or with rs2 %g0
instead of mov, so that gas can further optimize it.
From-SVN: r34466
Diffstat (limited to 'gcc/configure.in')
| -rw-r--r-- | gcc/configure.in | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/configure.in b/gcc/configure.in index bc4cf07..9054054 100644 --- a/gcc/configure.in +++ b/gcc/configure.in @@ -4550,6 +4550,25 @@ case "$target" in [Define if your assembler supports .register.]) fi + AC_CACHE_CHECK([assembler supports -relax], + gcc_cv_as_relax_opt, [ + gcc_cv_as_relax_opt=unknown + if test x$gcc_cv_as != x; then + # Check if gas supports -relax + echo ".text" > conftest.s + if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then + gcc_cv_as_relax_opt=yes + else + gcc_cv_as_relax_opt=no + fi + rm -f conftest.s conftest.o + fi + ]) + if test "x$gcc_cv_as_relax_opt" = xyes; then + AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, + [Define if your assembler supports -relax option.]) + fi + case "$tm_file" in *64*) AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)], |