re PR target/55948 (__atomic_clear / __atomic_store_n ignore HLE_RELEASE flags)

	PR target/55948
	* config/i386/sync.md (atomic_store<mode>_1): New pattern.
	(atomic_store<mode>): Call atomic_store<mode>_1 for IX86_HLE_RELEASE
	memmodel flag.

testsuite/ChangeLog

	PR target/55948
	* gcc.target/i386/hle-clear-rel.c: New file
	* gcc.target/i386/hle-store-rel.c: New file.

From-SVN: r195155

gcc/ChangeLog

+2012-01-14  Uros Bizjak  <ubizjak@gmail.com>
+	    Andi Kleen  <ak@linux.intel.com>
+
+	PR target/55948
+	* config/i386/sync.md (atomic_store<mode>_1): New pattern.
+	(atomic_store<mode>): Call atomic_store<mode>_1 for IX86_HLE_RELEASE
+	memmodel flag.
+
 2013-01-14  Georg-Johann Lay  <avr@gjlay.de>
 
 	* config/avr/avr-stdint.h: Remove trailing blanks.
@@ -7,7 +15,7 @@
 	* config/avr/avr-dimode.md: Same.
 	* config/avr/predicates.md: Same.
 	* config/avr/avr-c.c: Same.  And fix typo.
-	
+
 	* config/avr/avr-protos.h: Same.  And:
 	(function_arg_regno_p): Rename to avr_function_arg_regno_p.
 	(init_cumulative_args): Rename to avr_init_cumulative_args.

gcc/config/i386/sync.md

@@ -224,8 +224,12 @@
 	  DONE;
 	}
 
-      /* Otherwise use a normal store.  */
-      emit_move_insn (operands[0], operands[1]);
+      /* Otherwise use a store.  */
+      if (INTVAL (operands[2]) & IX86_HLE_RELEASE)
+	emit_insn (gen_atomic_store<mode>_1 (operands[0], operands[1],
+					     operands[2]));
+      else
+	emit_move_insn (operands[0], operands[1]);
     }
   /* ... followed by an MFENCE, if required.  */
   if (model == MEMMODEL_SEQ_CST)
@@ -233,6 +237,14 @@
   DONE;
 })
 
+(define_insn "atomic_store<mode>_1"
+  [(set (match_operand:ATOMIC 0 "memory_operand" "=m")
+	(unspec:ATOMIC [(match_operand:ATOMIC 1 "<nonmemory_operand>" "<r><i>")
+			(match_operand:SI 2 "const_int_operand")]
+		       UNSPEC_MOVA))]
+  ""
+  "%K2mov{<imodesuffix>}\t{%1, %0|%0, %1}")
+
 (define_insn_and_split "atomic_storedi_fpu"
   [(set (match_operand:DI 0 "memory_operand" "=m,m,m")
 	(unspec:DI [(match_operand:DI 1 "register_operand" "x,m,?r")]

gcc/testsuite/ChangeLog

+2012-01-14  Andi Kleen  <ak@linux.intel.com>
+
+	PR target/55948
+	* gcc.target/i386/hle-clear-rel.c: New file
+	* gcc.target/i386/hle-store-rel.c: New file.
+
 2013-01-14  Harald Anlauf  <anlauf@gmx.de>
 
 	* gfortran.dg/aint_anint_1.f90: Add dg-do run.
@@ -62,14 +68,13 @@
 
 2013-01-10  Richard Sandiford  <rdsandiford@googlemail.com>
 
-	Update copyright years
+	Update copyright years.
 
 2013-01-10  Aldy Hernandez  <aldyh@redhat.com>
 	    Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/55565
-	* gcc.target/powerpc/ppc-mov-1.c: Update scan-assembler-not
-	regex.
+	* gcc.target/powerpc/ppc-mov-1.c: Update scan-assembler-not regex.
 
 2013-01-10  Vladimir Makarov  <vmakarov@redhat.com>
 
@@ -140,7 +145,7 @@
 
 2013-01-09  Jan Hubicka  <jh@suse.cz>
 
-	PR tree-optimiation/55875
+	PR tree-optimization/55875
 	* gcc.c-torture/execute/pr55875.c: New testcase.
 	* g++.dg/torture/pr55875.C: New testcase.
 
@@ -181,14 +186,14 @@
 
 2013-01-08  James Greenhalgh  <james.greenhalgh@arm.com>
 
-	* gcc/testsuite/gcc.target/aarch64/vect-fcm-eq-d.c: New.
-	* gcc/testsuite/gcc.target/aarch64/vect-fcm-eq-f.c: Likewise.
-	* gcc/testsuite/gcc.target/aarch64/vect-fcm-ge-d.c: Likewise.
-	* gcc/testsuite/gcc.target/aarch64/vect-fcm-ge-f.c: Likewise.
-	* gcc/testsuite/gcc.target/aarch64/vect-fcm-gt-d.c: Likewise.
-	* gcc/testsuite/gcc.target/aarch64/vect-fcm-gt-f.c: Likewise.
-	* gcc/testsuite/gcc.target/aarch64/vect-fcm.x: Likewise.
-	* gcc/testsuite/lib/target-supports.exp
+	* gcc.target/aarch64/vect-fcm-eq-d.c: New.
+	* gcc.target/aarch64/vect-fcm-eq-f.c: Likewise.
+	* gcc.target/aarch64/vect-fcm-ge-d.c: Likewise.
+	* gcc.target/aarch64/vect-fcm-ge-f.c: Likewise.
+	* gcc.target/aarch64/vect-fcm-gt-d.c: Likewise.
+	* gcc.target/aarch64/vect-fcm-gt-f.c: Likewise.
+	* gcc.target/aarch64/vect-fcm.x: Likewise.
+	* lib/target-supports.exp
 	(check_effective_target_vect_cond): Enable for AArch64.
 
 2013-01-08  James Greenhalgh  <james.greenhalgh@arm.com>

gcc/testsuite/gcc.target/i386/hle-clear-rel.c

+/* { dg-do compile } */
+/* { dg-options "-mhle" } */
+/* { dg-final { scan-assembler "\[ \n\t\]+\(xrelease\|\.byte\[ \t\]+0xf3\)\[ \t\n\]+mov" } } */
+
+void
+hle_clear (char *p, int v)
+{
+  __atomic_clear (p, __ATOMIC_RELEASE | __ATOMIC_HLE_RELEASE);
+}

gcc/testsuite/gcc.target/i386/hle-store-rel.c

+/* { dg-do compile } */
+/* { dg-options "-mhle" } */
+/* { dg-final { scan-assembler "\[ \n\t\]+\(xrelease\|\.byte\[ \t\]+0xf3\)\[ \t\n\]+mov" } } */
+
+void
+hle_store (int *p, int v)
+{
+  __atomic_store_n (p, v, __ATOMIC_RELEASE | __ATOMIC_HLE_RELEASE);
+}