* doc/extend.texi (Raw read/write Functions): New section.

	* testsuite/gcc.target/frv/all-builtin-read8.c: New.
	* testsuite/gcc.target/frv/all-builtin-read16.c: New.
	* testsuite/gcc.target/frv/all-builtin-read32.c: New.
	* testsuite/gcc.target/frv/all-builtin-read64.c: New.
	* testsuite/gcc.target/frv/all-builtin-write8.c: New.
	* testsuite/gcc.target/frv/all-builtin-write16.c: New.
	* testsuite/gcc.target/frv/all-builtin-write32.c: New.
	* testsuite/gcc.target/frv/all-builtin-write64.c: New.
	* config/frv/frv.c: Add bdesc_loads global.
	Add bdesc_stores global.
	(frv_init_builtins): Add support for __builtin_{read/write}*.
	(frv_volatile_memref): New.
	(frv_expand_load_builtin): New.
	(frv_expand_store_builtin): New.
	* config/frv/frv.h (frv_builtins): Add FRV_BUILTIN_SCAN,
	FRV_BUILTIN_READ8, FRV_BUILTIN_READ16, FRV_BUILTIN_READ32,
	FRV_BUILTIN_READ64, FRV_BUILTIN_WRITE8, FRV_BUILTIN_WRITE16,
	FRV_BUILTIN_WRITE32, FRV_BUILTIN_WRITE64.
	* config/frv/frv.md (unspecs): Add UNSPEC_BUILTIN_LOAD,
	UNSPEC_BUILTIN_STORE, UNSPEC_OPTIONAL_MEMBAR.
	(builtin_read_<mode>): New.
	(builtin_write_<mode>): New.
	(builtin_write64): New.
	(optional_membar_<mode>): New.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@102388 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 44 insertions, 1 deletions

diff --git a/gcc/config/frv/frv.md b/gcc/config/frv/frv.md
index b8c37c51ed3..5b744bbc523 100644
--- a/gcc/config/frv/frv.md
+++ b/gcc/config/frv/frv.md
@@ -41,6 +41,9 @@
    (UNSPEC_EH_RETURN_EPILOGUE	6)
    (UNSPEC_GOT			7)
    (UNSPEC_LDD			8)
+   (UNSPEC_BUILTIN_LOAD		9)
+   (UNSPEC_BUILTIN_STORE	10)
+   (UNSPEC_OPTIONAL_MEMBAR	11)
 
    (UNSPEC_GETTLSOFF			200)
    (UNSPEC_TLS_LOAD_GOTTLSOFF12		201)
@@ -86,7 +89,9 @@
    (FDPIC_REG			15)
    ])
 
-
+(define_mode_macro IMODE [QI HI SI DI])
+(define_mode_attr IMODEsuffix [(QI "b") (HI "h") (SI "") (DI "d")])
+(define_mode_attr BREADsuffix [(QI "ub") (HI "uh") (SI "") (DI "d")])
 
 ;; ::::::::::::::::::::
 ;; ::
@@ -2162,7 +2167,45 @@
   else
     FAIL;
 }")
+
+;; The load part of a __builtin_read* function.
+;; Use UNSPECs to distinguish these patterns from normal moves.
+(define_insn "builtin_read_<mode>"
+  [(set (match_operand:SI 0 "register_operand" "=d")
+	(zero_extend:SI (unspec:IMODE
+			 [(match_operand:IMODE 1 "memory_operand" "m")]
+			 UNSPEC_BUILTIN_LOAD)))]
+  ""
+  "ld<BREADsuffix>%I1%U1 %M1,%0"
+  [(set_attr "length" "4")
+   (set_attr "type" "gload")])
+
+;; The store part of a __builtin_write* function.
+(define_insn "builtin_write_<mode>"
+  [(set (match_operand:IMODE 0 "memory_operand" "=m")
+	(unspec:IMODE [(match_operand:IMODE 1 "reg_or_0_operand" "dO")]
+		      UNSPEC_BUILTIN_STORE))]
+  ""
+  "st<IMODEsuffix>%I0%U0 %z1, %M0"
+  [(set_attr "length" "4")
+   (set_attr "type" "gstore")])
 
+;; This one has a different predicate for operand 1.
+(define_insn "builtin_write64"
+  [(set (match_operand:DI 0 "memory_operand" "=m")
+	(unspec:DI [(match_operand:DI 1 "register_operand" "d")]
+		   UNSPEC_BUILTIN_STORE))]
+  ""
+  "std%I0%U0 %z1, %M0"
+  [(set_attr "length" "4")
+   (set_attr "type" "gstore")])
+
+(define_insn "optional_membar_<mode>"
+  [(set (match_operand:IMODE 0 "memory_operand" "=m")
+	(unspec:IMODE [(const_int 0)] UNSPEC_OPTIONAL_MEMBAR))]
+  ""
+  "membar"
+  [(set_attr "length" "4")])
 
 ;; ::::::::::::::::::::
 ;; ::