mips.md (compression): Add `micromips32' setting.

	* config/mips/mips.md (compression): Add `micromips32' setting.
	(enabled, length): Handle it.
	(shift_compression): Replace `micromips' with `micromips32' in
	the `compression' attribute.
	(*add<mode>3, sub<mode>3): Likewise.

From-SVN: r217728

gcc/ChangeLog

 2014-11-18  Maciej W. Rozycki  <macro@codesourcery.com>
 
+	* config/mips/mips.md (compression): Add `micromips32' setting.
+	(enabled, length): Handle it.
+	(shift_compression): Replace `micromips' with `micromips32' in
+	the `compression' attribute.
+	(*add<mode>3, sub<mode>3): Likewise.
+
+2014-11-18  Maciej W. Rozycki  <macro@codesourcery.com>
+
 	* gcc/config/mips/mips.md (*jump_absolute): Use a branch when in
 	range, a jump otherwise.
 

gcc/config/mips/mips.md

@@ -429,7 +429,7 @@
 		(const_string "yes")
 		(const_string "no")))
 
-(define_attr "compression" "none,all,micromips"
+(define_attr "compression" "none,all,micromips32,micromips"
   (const_string "none"))
 
 (define_attr "enabled" "no,yes"
@@ -440,7 +440,7 @@
 			   || TARGET_O32_FP64A_ABI")
 	      (eq_attr "dword_mode" "yes"))
 	 (const_string "no")
-	 (and (eq_attr "compression" "micromips")
+	 (and (eq_attr "compression" "micromips32,micromips")
 	      (match_test "!TARGET_MICROMIPS"))
 	 (const_string "no")]
 	(const_string "yes")))
@@ -526,7 +526,9 @@
 ;; but there are special cases for branches (which must be handled here)
 ;; and for compressed single instructions.
 (define_attr "length" ""
-   (cond [(and (eq_attr "compression" "micromips,all")
+   (cond [(and (ior (eq_attr "compression" "micromips,all")
+		    (and (eq_attr "compression" "micromips32")
+			 (eq_attr "mode" "SI,SF")))
 	       (eq_attr "dword_mode" "no")
 	       (match_test "TARGET_MICROMIPS"))
 	  (const_int 2)
@@ -979,8 +981,8 @@
 				  (xor "xori")
 				  (and "andi")])
 
-(define_code_attr shift_compression [(ashift "micromips")
-				     (lshiftrt "micromips")
+(define_code_attr shift_compression [(ashift "micromips32")
+				     (lshiftrt "micromips32")
 				     (ashiftrt "none")])
 
 ;; <fcond> is the c.cond.fmt condition associated with a particular code.
@@ -1163,7 +1165,7 @@
     return "<d>addiu\t%0,%1,%2";
 }
   [(set_attr "alu_type" "add")
-   (set_attr "compression" "micromips,*,micromips,micromips,micromips,micromips,*")
+   (set_attr "compression" "micromips32,*,micromips32,micromips32,micromips32,micromips32,*")
    (set_attr "mode" "<MODE>")])
 
 (define_insn "*add<mode>3_mips16"
@@ -1381,7 +1383,7 @@
   ""
   "<d>subu\t%0,%1,%2"
   [(set_attr "alu_type" "sub")
-   (set_attr "compression" "micromips,*")
+   (set_attr "compression" "micromips32,*")
    (set_attr "mode" "<MODE>")])
 
 (define_insn "*subsi3_extended"