ChangeLog entry:

        * coretypes (MEMMODEL_MASK): New.
        * builtins.c (get_memmodel): Add val. Call target.memmodel_check
        and return new variable.
        (expand_builtin_atomic_exchange):  Mask memmodel values.
        (expand_builtin_atomic_compare_exchange): Ditto.
        (expand_builtin_atomic_load): Ditto.
        (expand_builtin_atomic_store): Ditto.
        (expand_builtin_atomic_clear): Ditto.
        * doc/extend.texi: Mention port-dependent memory model flags.
        * config/i386/cpuid.h (bit_HLE): New.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect
        HLE support.
        * config/i386/i386-protos.h (ix86_generate_hle_prefix): New.
        * config/i386/i386-c.c (ix86_target_macros_internal): Set
        HLE defines.
        (ix86_target_string)<-mhle>: New.
        (ix86_valid_target_attribute_inner_p)<OPT_mhle>: Ditto.
        * config/i386/i386.c (ix86_target_string)<OPTION_MASK_ISA_HLE>:
        New.
        (ix86_valid_target_attribute_inner_p)<OPT_mhle>: Ditto.
        (ix86_option_override_internal)<PTA_HLE>: New switch, set it
        enabled for generic, generic64 and core-avx2.
        (ix86_print_operand): Generate HLE lock prefixes.
        (ix86_memmodel_check): New.
        (TARGET_MEMMODEL_CHECK): Ditto.
        * config/i386/i386.h (OPTION_ISA_HLE): Ditto.
        (IX86_HLE_ACQUIRE): Ditto.
        (IX86_HLE_RELEASE): Ditto.
        * config/i386/i386.h (ix86_generate_hle_prefix): Ditto.
        * config/i386/i386.opt (mhle): Ditto.
        * config/i386/sync.md(atomic_compare_and_swap<mode>): Pass
        success model to instruction emitter.
        (atomic_fetch_add<mode>): Ditto.
        (atomic_exchange<mode>): Ditto.
        (atomic_add<mode>): Ditto.
        (atomic_sub<mode>): Ditto.
        (atomic_<code><mode>): Ditto.
        (*atomic_compare_and_swap_doubledi_pic): Ditto.
        (atomic_compare_and_swap_single<mode>): Define and use argument
        for success model.
        (atomic_compare_and_swap_double<mode>): Ditto.
        * configure.ac: Check if assembler support HLE prefixes.
        * configure: Regenerate.
        * config.in: Ditto.

testsuite/ChangeLog entry:

        * gcc.target/i386/hle-cmpxchg-acq-1.c: New.
        * gcc.target/i386/hle-cmpxchg-rel-1.c: Ditto.
        * gcc.target/i386/hle-add-acq-1.c: Ditto.
        * gcc.target/i386/hle-add-rel-1.c: Ditto.
        * gcc.target/i386/hle-and-acq-1.c: Ditto.
        * gcc.target/i386/hle-and-rel-1.c: Ditto.
        * gcc.target/i386/hle-or-acq-1.c: Ditto.
        * gcc.target/i386/hle-or-rel-1.c: Ditto.
        * gcc.target/i386/hle-sub-acq-1.c: Ditto.
        * gcc.target/i386/hle-sub-rel-1.c: Ditto.
        * gcc.target/i386/hle-xadd-acq-1.c: Ditto.
        * gcc.target/i386/hle-xadd-rel-1.c: Ditto.
        * gcc.target/i386/hle-xchg-acq-1.c: Ditto.
        * gcc.target/i386/hle-xchg-rel-1.c: Ditto.
        * gcc.target/i386/hle-xor-acq-1.c: Ditto.
        * gcc.target/i386/hle-xor-rel-1.c: Ditto.




git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@187051 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 33 insertions, 0 deletions

diff --git a/gcc/configure b/gcc/configure
index c1b0e465c35..223f21805e0 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -24628,6 +24628,39 @@ $as_echo "#define HAVE_AS_IX86_SAHF 1" >>confdefs.h
 
 fi
 
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for hle prefixes" >&5
+$as_echo_n "checking assembler for hle prefixes... " >&6; }
+if test "${gcc_cv_as_ix86_hle+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_ix86_hle=no
+  if test x$gcc_cv_as != x; then
+    $as_echo '.code64
+       lock xacquire cmpxchg %esi, (%rcx)
+       ' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_ix86_hle=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_hle" >&5
+$as_echo "$gcc_cv_as_ix86_hle" >&6; }
+if test $gcc_cv_as_ix86_hle = yes; then
+
+$as_echo "#define HAVE_AS_IX86_HLE 1" >>confdefs.h
+
+fi
+
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for swap suffix" >&5
 $as_echo_n "checking assembler for swap suffix... " >&6; }
 if test "${gcc_cv_as_ix86_swap+set}" = set; then :