[PATCH 4/9] rs6000: Clean up neg<mode>2

Segher Boessenkool segher@kernel.crashing.org
Sat Sep 20 18:24:00 GMT 2014


2014-09-20  Segher Boessenkool  <segher@kernel.crashing.org>

	* config/rs6000/rs6000.md (*neg<mode>2_internal): Delete.
	(two anonymous define_insn and two define_split): Delete.
	(*neg<mode>2, *neg<mode>2_dot, *neg<mode>2_dot2): New.


---
 gcc/config/rs6000/rs6000.md | 65 +++++++++++++++++++--------------------------
 1 file changed, 27 insertions(+), 38 deletions(-)

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 1a289d6..0bb1a66 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -1725,72 +1725,61 @@ (define_expand "sub<mode>3"
     }
 }")
 
+
 (define_expand "neg<mode>2"
   [(set (match_operand:SDI 0 "gpc_reg_operand" "")
 	(neg:SDI (match_operand:SDI 1 "gpc_reg_operand" "")))]
   ""
   "")
 
-(define_insn "*neg<mode>2_internal"
+(define_insn "*neg<mode>2"
   [(set (match_operand:GPR 0 "gpc_reg_operand" "=r")
 	(neg:GPR (match_operand:GPR 1 "gpc_reg_operand" "r")))]
   ""
   "neg %0,%1"
   [(set_attr "type" "add")])
 
-(define_insn ""
-  [(set (match_operand:CC 0 "cc_reg_operand" "=x,?y")
-	(compare:CC (neg:P (match_operand:P 1 "gpc_reg_operand" "r,r"))
+(define_insn_and_split "*neg<mode>2_dot"
+  [(set (match_operand:CC 2 "cc_reg_operand" "=x,?y")
+	(compare:CC (neg:GPR (match_operand:GPR 1 "gpc_reg_operand" "r,r"))
 		    (const_int 0)))
-   (clobber (match_scratch:P 2 "=r,r"))]
-  ""
+   (clobber (match_scratch:GPR 0 "=r,r"))]
+  "<MODE>mode == Pmode"
   "@
-   neg. %2,%1
+   neg. %0,%1
    #"
+  "&& reload_completed && cc_reg_not_cr0_operand (operands[2], CCmode)"
+  [(set (match_dup 0)
+	(neg:GPR (match_dup 1)))
+   (set (match_dup 2)
+	(compare:CC (match_dup 0)
+		    (const_int 0)))]
+  ""
   [(set_attr "type" "add")
    (set_attr "dot" "yes")
    (set_attr "length" "4,8")])
 
-(define_split
-  [(set (match_operand:CC 0 "cc_reg_not_cr0_operand" "")
-	(compare:CC (neg:P (match_operand:P 1 "gpc_reg_operand" ""))
-		    (const_int 0)))
-   (clobber (match_scratch:P 2 ""))]
-  "reload_completed"
-  [(set (match_dup 2)
-	(neg:P (match_dup 1)))
-   (set (match_dup 0)
-	(compare:CC (match_dup 2)
-		    (const_int 0)))]
-  "")
-
-(define_insn ""
+(define_insn_and_split "*neg<mode>2_dot2"
   [(set (match_operand:CC 2 "cc_reg_operand" "=x,?y")
-	(compare:CC (neg:P (match_operand:P 1 "gpc_reg_operand" "r,r"))
+	(compare:CC (neg:GPR (match_operand:GPR 1 "gpc_reg_operand" "r,r"))
 		    (const_int 0)))
-   (set (match_operand:P 0 "gpc_reg_operand" "=r,r")
-	(neg:P (match_dup 1)))]
-  ""
+   (set (match_operand:GPR 0 "gpc_reg_operand" "=r,r")
+	(neg:GPR (match_dup 1)))]
+  "<MODE>mode == Pmode"
   "@
    neg. %0,%1
    #"
-  [(set_attr "type" "add")
-   (set_attr "dot" "yes")
-   (set_attr "length" "4,8")])
-
-(define_split
-  [(set (match_operand:CC 2 "cc_reg_not_cr0_operand" "")
-	(compare:CC (neg:P (match_operand:P 1 "gpc_reg_operand" ""))
-		    (const_int 0)))
-   (set (match_operand:P 0 "gpc_reg_operand" "")
-	(neg:P (match_dup 1)))]
-  "reload_completed"
+  "&& reload_completed && cc_reg_not_cr0_operand (operands[2], CCmode)"
   [(set (match_dup 0)
-	(neg:P (match_dup 1)))
+	(neg:GPR (match_dup 1)))
    (set (match_dup 2)
 	(compare:CC (match_dup 0)
 		    (const_int 0)))]
-  "")
+  ""
+  [(set_attr "type" "add")
+   (set_attr "dot" "yes")
+   (set_attr "length" "4,8")])
+
 
 (define_insn "clz<mode>2"
   [(set (match_operand:GPR 0 "gpc_reg_operand" "=r")
-- 
1.8.1.4



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