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| author | Uros Bizjak <ubizjak@gmail.com> | 2007-03-14 22:03:59 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2007-03-14 22:03:59 +0100 |
| commit | 38ca3765253c05cc3bdba77c942c2a00b0da132d (patch) | |
| tree | 607098977428b569ac568220d0c2c564dc2232f5 /gcc | |
| parent | e9f646295d8d233b95d43a60cf2e596f38469c3e (diff) | |
| download | gcc-38ca3765253c05cc3bdba77c942c2a00b0da132d.zip gcc-38ca3765253c05cc3bdba77c942c2a00b0da132d.tar.gz gcc-38ca3765253c05cc3bdba77c942c2a00b0da132d.tar.bz2 | |
configure.ac (HAVE_AS_IX86_SAHF): On x86 targets check whether the configured assembler supports the sahf mnemonic.
* 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.
From-SVN: r122931
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 10 | ||||
| -rw-r--r-- | gcc/config.in | 6 | ||||
| -rw-r--r-- | gcc/config/i386/i386.md | 2 | ||||
| -rwxr-xr-x | gcc/configure | 33 | ||||
| -rw-r--r-- | gcc/configure.ac | 6 |
5 files changed, 56 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 16f70d1..3cb3328 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,13 @@ +2007-03-14 Uros Bizjak <ubizjak@gmail.com> + + * 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. + 2007-03-14 Michael Meissner <michael.meissner@amd.com> PR 31018 diff --git a/gcc/config.in b/gcc/config.in index 9906ad7..69f7e9e 100644 --- a/gcc/config.in +++ b/gcc/config.in @@ -228,6 +228,12 @@ #endif +/* Define if your assembler supports the sahf mnemonic. */ +#ifndef USED_FOR_TARGET +#undef HAVE_AS_IX86_SAHF +#endif + + /* Define if your assembler supports the lituse_jsrdirect relocation. */ #ifndef USED_FOR_TARGET #undef HAVE_AS_JSRDIRECT_RELOCS diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index f3fb848..4d3120d 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -988,7 +988,7 @@ (unspec:CC [(match_operand:HI 0 "register_operand" "a")] UNSPEC_SAHF))] "TARGET_SAHF" - "sahf" + "* return HAVE_AS_IX86_SAHF ? \"sahf\" : \".byte\t0x9e\";" [(set_attr "length" "1") (set_attr "athlon_decode" "vector") (set_attr "amdfam10_decode" "direct") diff --git a/gcc/configure b/gcc/configure index 488794b..de3f628 100755 --- a/gcc/configure +++ b/gcc/configure @@ -15237,6 +15237,39 @@ _ACEOF fi + echo "$as_me:$LINENO: checking assembler for sahf mnemonic" >&5 +echo $ECHO_N "checking assembler for sahf mnemonic... $ECHO_C" >&6 +if test "${gcc_cv_as_ix86_sahf+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + gcc_cv_as_ix86_sahf=no + if test x$gcc_cv_as != x; then + echo 'sahf' > conftest.s + if { ac_try='$gcc_cv_as -o conftest.o conftest.s >&5' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } + then + gcc_cv_as_ix86_sahf=yes + else + echo "configure: failed program was" >&5 + cat conftest.s >&5 + fi + rm -f conftest.o conftest.s + fi +fi +echo "$as_me:$LINENO: result: $gcc_cv_as_ix86_sahf" >&5 +echo "${ECHO_T}$gcc_cv_as_ix86_sahf" >&6 +if test $gcc_cv_as_ix86_sahf = yes; then + +cat >>confdefs.h <<\_ACEOF +#define HAVE_AS_IX86_SAHF 1 +_ACEOF + +fi + echo "$as_me:$LINENO: checking assembler for different section symbol subtraction" >&5 echo $ECHO_N "checking assembler for different section symbol subtraction... $ECHO_C" >&6 if test "${gcc_cv_as_ix86_diff_sect_delta+set}" = set; then diff --git a/gcc/configure.ac b/gcc/configure.ac index 768cff0..18134ca 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 |