From: Segher Boessenkool <segher@kernel.crashing.org>
Date: Fri, 5 Oct 2018 19:40:36 +0000 (+0200)
Subject: rs6000: Some mfcr pattern simplification
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a3a81f292256069546bc2b0b9ebddb229af117b1;p=gcc.git

rs6000: Some mfcr pattern simplification


	* config/rs6000/rs6000.md (unnamed mfcr scc_comparison_operator
	patterns): Merge SI and DI patterns to a GPR pattern.
	(unnamed define_insn and define_split for record form of that): Merge
	to a single define_insn_and_split pattern.

From-SVN: r264889
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 53c9c89ce9a..8d754af2201 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2018-10-05  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* config/rs6000/rs6000.md (unnamed mfcr scc_comparison_operator
+	patterns): Merge SI and DI patterns to a GPR pattern.
+	(unnamed define_insn and define_split for record form of that): Merge
+	to a single define_insn_and_split pattern.
+
 2018-10-05  David Malcolm  <dmalcolm@redhat.com>
 
 	PR c++/56856
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 5db3e57f347..0e7cf353af1 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -11765,10 +11765,10 @@
 ;; cases the insns below which don't use an intermediate CR field will
 ;; be used instead.
 (define_insn ""
-  [(set (match_operand:SI 0 "gpc_reg_operand" "=r")
-	(match_operator:SI 1 "scc_comparison_operator"
-			   [(match_operand 2 "cc_reg_operand" "y")
-			    (const_int 0)]))]
+  [(set (match_operand:GPR 0 "gpc_reg_operand" "=r")
+	(match_operator:GPR 1 "scc_comparison_operator"
+			    [(match_operand 2 "cc_reg_operand" "y")
+			     (const_int 0)]))]
   ""
   "mfcr %0%Q2\;rlwinm %0,%0,%J1,1"
   [(set (attr "type")
@@ -11778,21 +11778,7 @@
 	(const_string "mfcr")))
    (set_attr "length" "8")])
 
-(define_insn ""
-  [(set (match_operand:DI 0 "gpc_reg_operand" "=r")
-	(match_operator:DI 1 "scc_comparison_operator"
-			   [(match_operand 2 "cc_reg_operand" "y")
-			    (const_int 0)]))]
-  "TARGET_POWERPC64"
-  "mfcr %0%Q2\;rlwinm %0,%0,%J1,1"
-  [(set (attr "type")
-     (cond [(match_test "TARGET_MFCRF")
-		(const_string "mfcrf")
-	   ]
-	(const_string "mfcr")))
-   (set_attr "length" "8")])
-
-(define_insn ""
+(define_insn_and_split ""
   [(set (match_operand:CC 0 "cc_reg_operand" "=x,?y")
 	(compare:CC (match_operator:SI 1 "scc_comparison_operator"
 				       [(match_operand 2 "cc_reg_operand" "y,y")
@@ -11804,25 +11790,16 @@
   "@
    mfcr %3%Q2\;rlwinm. %3,%3,%J1,1
    #"
-  [(set_attr "type" "shift")
-   (set_attr "dot" "yes")
-   (set_attr "length" "8,16")])
-
-(define_split
-  [(set (match_operand:CC 0 "cc_reg_not_cr0_operand")
-	(compare:CC (match_operator:SI 1 "scc_comparison_operator"
-				       [(match_operand 2 "cc_reg_operand")
-					(const_int 0)])
-		    (const_int 0)))
-   (set (match_operand:SI 3 "gpc_reg_operand")
-	(match_op_dup 1 [(match_dup 2) (const_int 0)]))]
-  "TARGET_32BIT && reload_completed"
+  "&& reload_completed"
   [(set (match_dup 3)
 	(match_op_dup 1 [(match_dup 2) (const_int 0)]))
    (set (match_dup 0)
 	(compare:CC (match_dup 3)
 		    (const_int 0)))]
-  "")
+  ""
+  [(set_attr "type" "shift")
+   (set_attr "dot" "yes")
+   (set_attr "length" "8,16")])
 
 (define_insn ""
   [(set (match_operand:SI 0 "gpc_reg_operand" "=r")