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| author | uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-03-14 21:03:59 +0000 |
|---|---|---|
| committer | uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-03-14 21:03:59 +0000 |
| commit | 735630ef5d264e0535d02bec3af5fd54f3f79f7b (patch) | |
| tree | 607098977428b569ac568220d0c2c564dc2232f5 /gcc/configure.ac | |
| parent | 2b28c6810695d870de9d3039beb6e7ab9a6bbd05 (diff) | |
| download | gcc-735630ef5d264e0535d02bec3af5fd54f3f79f7b.tar.gz | |
* configure.ac (HAVE_AS_IX86_SAHF): On x86 targets check whether
the configured assembler supports the sahf mnemonic.
* configure: Regenerate.
* config.in: Regenerate.
* config/i386/i386.md (x86_sahf_1): Depending on HAVE_AS_IX86_SAHF,
emit "sahf" or ".byte\t0x9e" as asm template.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@122931 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/configure.ac')
| -rw-r--r-- | gcc/configure.ac | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac index 768cff05208..18134cae8fb 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -2808,6 +2808,12 @@ foo: nop [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, [Define if your assembler supports the ffreep mnemonic.])]) + gcc_GAS_CHECK_FEATURE([sahf mnemonic], + gcc_cv_as_ix86_sahf,,, + [sahf],, + [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, + [Define if your assembler supports the sahf mnemonic.])]) + gcc_GAS_CHECK_FEATURE([different section symbol subtraction], gcc_cv_as_ix86_diff_sect_delta,,, [.section .rodata |