constraints.md (I28): New constraint.

	* config/sh/constraints.md (I28): New constraint.
	* config/sh/sh.c (broken_move): Add support for movi20s.
	* config/sh/sh.md (movsi_ie): Add the alternative for
	movi20s.

	* gcc.target/sh/sh2a-movi20s.c: New test.


Co-Authored-By: Naveen.H.S <naveen.hs@kpitcummins.com>

From-SVN: r133514

6 files changed, 41 insertions, 5 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 071d094..7ca5028 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2008-03-25  Jayant Sonar  <Jayant.sonar@kpitcummins.com>
+	    Naveen.H.S  <naveen.hs@kpitcummins.com>
+
+	* config/sh/constraints.md (I28): New constraint.
+	* config/sh/sh.c (broken_move): Add support for movi20s.
+	* config/sh/sh.md (movsi_ie): Add the alternative for
+	movi20s.
+
 2008-03-25  Anil Paranjape  <anil.paranjape@kpitcummins.com>
 	    Jayant Sonar  <Jayant.sonar@kpitcummins.com>
 	    Naveen.H.S  <naveen.hs@kpitcummins.com>
diff --git a/gcc/config/sh/constraints.md b/gcc/config/sh/constraints.md
index 333c5be..7509fae 100644
--- a/gcc/config/sh/constraints.md
+++ b/gcc/config/sh/constraints.md
@@ -112,6 +112,12 @@
        (match_test "ival >= -524288 && ival <= 524287")
        (match_test "TARGET_SH2A")))
 
+(define_constraint "I28"
+  "A signed 28-bit constant, as used in SH2A movi20s."
+  (and (match_code "const_int")
+       (match_test "ival >=  -134217728 && ival <= 134217727")
+       (match_test "(ival & 255) == 0")
+       (match_test "TARGET_SH2A")))
 (define_constraint "J16"
   "0xffffffff00000000 or 0x00000000ffffffff."
   (and (match_code "const_int")
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index 57049ea..df959d8 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -3753,7 +3753,8 @@ broken_move (rtx insn)
 		&& FP_REGISTER_P (REGNO (SET_DEST (pat))))
 	  && ! (TARGET_SH2A
 		&& GET_MODE (SET_DEST (pat)) == SImode
-		&& satisfies_constraint_I20 (SET_SRC (pat)))
+		&& (satisfies_constraint_I20 (SET_SRC (pat))
+		   || satisfies_constraint_I28 (SET_SRC (pat))))
 	  && ! satisfies_constraint_I08 (SET_SRC (pat)))
 	return 1;
     }
diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md
index 6dae438..750e9d3 100644
--- a/gcc/config/sh/sh.md
+++ b/gcc/config/sh/sh.md
@@ -4937,9 +4937,9 @@ label:
 ;; TARGET_FMOVD is in effect, and mode switching is done before reload.
 (define_insn "movsi_ie"
   [(set (match_operand:SI 0 "general_movdst_operand"
-	    "=r,r,r,r,t,r,r,r,r,m,<,<,x,l,x,l,y,<,r,y,r,*f,y,*f,y")
+	    "=r,r,r,r,r,t,r,r,r,r,m,<,<,x,l,x,l,y,<,r,y,r,*f,y,*f,y")
 	(match_operand:SI 1 "general_movsrc_operand"
-	 "Q,r,I08,I20,r,mr,x,l,t,r,x,l,r,r,>,>,>,y,i,r,y,y,*f,*f,y"))]
+	 "Q,r,I08,I20,I28,r,mr,x,l,t,r,x,l,r,r,>,>,>,y,i,r,y,y,*f,*f,y"))]
   "(TARGET_SH2E || TARGET_SH2A)
    && (register_operand (operands[0], SImode)
        || register_operand (operands[1], SImode))"
@@ -4948,6 +4948,7 @@ label:
 	mov	%1,%0
 	mov	%1,%0
 	movi20	%1,%0
+	movi20s	%1,%0
 	cmp/pl	%1
 	mov.l	%1,%0
 	sts	%1,%0
@@ -4969,13 +4970,14 @@ label:
 	flds	%1,fpul
 	fmov	%1,%0
 	! move optimized away"
-  [(set_attr "type" "pcload_si,move,movi8,move,*,load_si,mac_gp,prget,arith,store,mac_mem,pstore,gp_mac,prset,mem_mac,pload,load,fstore,pcload_si,gp_fpul,fpul_gp,fmove,fmove,fmove,nil")
-   (set_attr "late_fp_use" "*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,yes,*,*,yes,*,*,*,*")
+  [(set_attr "type" "pcload_si,move,movi8,move,move,*,load_si,mac_gp,prget,arith,store,mac_mem,pstore,gp_mac,prset,mem_mac,pload,load,fstore,pcload_si,gp_fpul,fpul_gp,fmove,fmove,fmove,nil")
+   (set_attr "late_fp_use" "*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,yes,*,*,yes,*,*,*,*")
    (set_attr_alternative "length"
      [(const_int 2)
       (const_int 2)
       (const_int 2)
       (const_int 4)
+      (const_int 4)
       (const_int 2)
       (if_then_else
 	(ne (symbol_ref "TARGET_SH2A") (const_int 0))
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 103aaf2..7cee930 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-03-25  Jayant Sonar  <Jayant.sonar@kpitcummins.com>
+	    Naveen.H.S  <naveen.hs@kpitcummins.com>
+
+	* gcc.target/sh/sh2a-movi20s.c: New test.
+
 2008-03-25  Anil Paranjape  <anil.paranjape@kpitcummins.com>
 	    Jayant Sonar  <Jayant.sonar@kpitcummins.com>
 	    Naveen.H.S  <naveen.hs@kpitcummins.com>
diff --git a/gcc/testsuite/gcc.target/sh/sh2a-movi20s.c b/gcc/testsuite/gcc.target/sh/sh2a-movi20s.c
new file mode 100644
index 0000000..55d2f66
--- /dev/null
+++ b/gcc/testsuite/gcc.target/sh/sh2a-movi20s.c
@@ -0,0 +1,14 @@
+/* Testcase to check generation of 'MOVI20S #imm20, Rn'.  */
+/* { dg-do assemble {target sh*-*-*}}  */
+/* { dg-options "-O0" } */
+/* { dg-skip-if "" { "sh*-*-*" } "*" "-m2a -m2a-nofpu -m2a-single -m2a-single-only" }  */
+/* { dg-final { scan-assembler "movi20s"} }  */
+
+volatile long la;
+
+void
+testfun (void)
+{
+  la = -134217728;
+  la = 134217216;
+}