rs6000: Use set_attr_alternative in some places

Some code is much neater if it uses set_attr_alternative than if it
does everything by hand.  Change some patterns to use this shorthand.


	* config/rs6000/rs6000.md (*movcc_internal1): Use set_attr_alternative.
	(*call_indirect_nonlocal_sysv<mode>): Ditto.
	(*call_value_indirect_nonlocal_sysv<mode>): Ditto.
	(*sibcall_nonlocal_sysv<mode>): Ditto.
	(*sibcall_value_nonlocal_sysv<mode>): Ditto.
	(<bd>_<mode>): Ditto.
	(<bd>tf_<mode>): Ditto.

From-SVN: r264588

2 files changed, 89 insertions, 105 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 54d9ecf..1b25c3e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,15 @@
 2018-09-25  Segher Boessenkool  <segher@kernel.crashing.org>
 
+	* config/rs6000/rs6000.md (*movcc_internal1): Use set_attr_alternative.
+	(*call_indirect_nonlocal_sysv<mode>): Ditto.
+	(*call_value_indirect_nonlocal_sysv<mode>): Ditto.
+	(*sibcall_nonlocal_sysv<mode>): Ditto.
+	(*sibcall_value_nonlocal_sysv<mode>): Ditto.
+	(<bd>_<mode>): Ditto.
+	(<bd>tf_<mode>): Ditto.
+
+2018-09-25  Segher Boessenkool  <segher@kernel.crashing.org>
+
 	* config/rs6000/altivec.md (*altivec_mov<mode>): Write the output
 	control string as a list of templates instead of as C code.
 	(*altivec_movti): Ditto.
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 4ce24d5..bcabf4d 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -7050,25 +7050,21 @@
    mt%0 %1
    lwz%U1%X1 %0,%1
    stw%U0%X0 %1,%0"
-  [(set (attr "type")
-     (cond [(eq_attr "alternative" "0,3")
-		(const_string "cr_logical")
-	    (eq_attr "alternative" "1,2")
-		(const_string "mtcr")
-	    (eq_attr "alternative" "6,7")
-		(const_string "integer")
-	    (eq_attr "alternative" "8")
-		(const_string "mfjmpr")
-	    (eq_attr "alternative" "9")
-		(const_string "mtjmpr")
-	    (eq_attr "alternative" "10")
-		(const_string "load")
-	    (eq_attr "alternative" "11")
-		(const_string "store")
-	    (match_test "TARGET_MFCRF")
-		(const_string "mfcrf")
-	   ]
-	(const_string "mfcr")))
+  [(set_attr_alternative "type"
+     [(const_string "cr_logical")
+      (const_string "mtcr")
+      (const_string "mtcr")
+      (const_string "cr_logical")
+      (if_then_else (match_test "TARGET_MFCRF")
+		    (const_string "mfcrf") (const_string "mfcr"))
+      (if_then_else (match_test "TARGET_MFCRF")
+		    (const_string "mfcrf") (const_string "mfcr"))
+      (const_string "integer")
+      (const_string "integer")
+      (const_string "mfjmpr")
+      (const_string "mtjmpr")
+      (const_string "load")
+      (const_string "store")])
    (set_attr "length" "4,4,12,4,4,8,4,4,4,4,4,4")])
 
 ;; For floating-point, we normally deal with the floating-point registers
@@ -10431,22 +10427,17 @@
     return "crset 2\;beq%T0l-";
 }
   [(set_attr "type" "jmpreg,jmpreg,jmpreg,jmpreg")
-   (set (attr "length")
-	(cond [(and (eq (symbol_ref "which_alternative") (const_int 0))
-		    (eq (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "8")
-	       (and (eq (symbol_ref "which_alternative") (const_int 2))
-		    (ne (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "8")
-	       (and (eq (symbol_ref "which_alternative") (const_int 2))
-		    (eq (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "12")
-	       (eq (symbol_ref "which_alternative") (const_int 3))
-		  (const_string "8")]
-	      (const_string "4")))])
+   (set_attr_alternative "length"
+     [(if_then_else (eq (symbol_ref "rs6000_speculate_indirect_jumps")
+			(const_int 0))
+		    (const_string "8")
+		    (const_string "4"))
+      (const_string "4")
+      (if_then_else (eq (symbol_ref "rs6000_speculate_indirect_jumps")
+			(const_int 0))
+		    (const_string "12")
+		    (const_string "8"))
+      (const_string "8")])])
 
 (define_insn_and_split "*call_nonlocal_sysv<mode>"
   [(call (mem:SI (match_operand:P 0 "symbol_ref_operand" "s,s"))
@@ -10538,22 +10529,17 @@
     return "crset 2\;beq%T1l-";
 }
   [(set_attr "type" "jmpreg,jmpreg,jmpreg,jmpreg")
-   (set (attr "length")
-	(cond [(and (eq (symbol_ref "which_alternative") (const_int 0))
-		    (eq (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "8")
-	       (and (eq (symbol_ref "which_alternative") (const_int 2))
-		    (ne (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "8")
-	       (and (eq (symbol_ref "which_alternative") (const_int 2))
-		    (eq (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "12")
-	       (eq (symbol_ref "which_alternative") (const_int 3))
-		  (const_string "8")]
-	      (const_string "4")))])
+   (set_attr_alternative "length"
+     [(if_then_else (eq (symbol_ref "rs6000_speculate_indirect_jumps")
+			(const_int 0))
+		    (const_string "8")
+		    (const_string "4"))
+      (const_string "4")
+      (if_then_else (eq (symbol_ref "rs6000_speculate_indirect_jumps")
+			(const_int 0))
+		    (const_string "12")
+		    (const_string "8"))
+      (const_string "8")])])
 
 (define_insn_and_split "*call_value_nonlocal_sysv<mode>"
   [(set (match_operand 0 "" "")
@@ -10947,22 +10933,17 @@
     return "b %z0";
 }
   [(set_attr "type" "branch")
-   (set (attr "length")
-	(cond [(eq (symbol_ref "which_alternative") (const_int 1))
-		  (const_string "8")
-	       (and (eq (symbol_ref "which_alternative") (const_int 2))
-		    (eq (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "12")
-	       (and (eq (symbol_ref "which_alternative") (const_int 3))
-		    (ne (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "8")
-	       (and (eq (symbol_ref "which_alternative") (const_int 3))
-		    (eq (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "16")]
-	      (const_string "4")))])
+   (set_attr_alternative "length"
+     [(const_string "4")
+      (const_string "8")
+      (if_then_else (eq (symbol_ref "rs6000_speculate_indirect_jumps")
+			(const_int 0))
+		    (const_string "12")
+		    (const_string "4"))
+      (if_then_else (eq (symbol_ref "rs6000_speculate_indirect_jumps")
+			(const_int 0))
+		    (const_string "16")
+		    (const_string "8"))])])
 
 (define_insn "*sibcall_value_nonlocal_sysv<mode>"
   [(set (match_operand 0 "" "")
@@ -10997,22 +10978,17 @@
     return "b %z1";
 }
   [(set_attr "type" "branch")
-   (set (attr "length")
-	(cond [(eq (symbol_ref "which_alternative") (const_int 1))
-		  (const_string "8")
-	       (and (eq (symbol_ref "which_alternative") (const_int 2))
-		    (eq (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "12")
-	       (and (eq (symbol_ref "which_alternative") (const_int 3))
-		    (ne (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "8")
-	       (and (eq (symbol_ref "which_alternative") (const_int 3))
-		    (eq (symbol_ref "rs6000_speculate_indirect_jumps")
-			(const_int 0)))
-		  (const_string "16")]
-	      (const_string "4")))])
+   (set_attr_alternative "length"
+     [(const_string "4")
+      (const_string "8")
+      (if_then_else (eq (symbol_ref "rs6000_speculate_indirect_jumps")
+			(const_int 0))
+		    (const_string "12")
+		    (const_string "4"))
+      (if_then_else (eq (symbol_ref "rs6000_speculate_indirect_jumps")
+			(const_int 0))
+		    (const_string "16")
+		    (const_string "8"))])])
 
 ;; AIX ABI sibling call patterns.
 
@@ -12645,17 +12621,16 @@
     return "<bd_neg> $+8\;b %l0";
 }
   [(set_attr "type" "branch")
-   (set (attr "length")
-	(cond [(eq (symbol_ref "which_alternative") (const_int 0))
-		  (if_then_else (and (ge (minus (match_dup 0) (pc))
-					 (const_int -32768))
-				     (lt (minus (match_dup 0) (pc))
-					 (const_int 32764)))
-				(const_int 4)
-				(const_int 8))
-	       (eq (symbol_ref "which_alternative") (const_int 1))
-		  (const_int 16)]
-	   (const_int 20)))])
+   (set_attr_alternative "length"
+     [(if_then_else (and (ge (minus (match_dup 0) (pc))
+			     (const_int -32768))
+			 (lt (minus (match_dup 0) (pc))
+			     (const_int 32764)))
+		    (const_int 4)
+		    (const_int 8))
+      (const_string "16")
+      (const_string "20")
+      (const_string "20")])])
 
 ;; Now the splitter if we could not allocate the CTR register
 (define_split
@@ -12734,17 +12709,16 @@
     }
 }
   [(set_attr "type" "branch")
-   (set (attr "length")
-	(cond [(eq (symbol_ref "which_alternative") (const_int 0))
-		  (if_then_else (and (ge (minus (match_dup 0) (pc))
-					 (const_int -32768))
-				     (lt (minus (match_dup 0) (pc))
-					 (const_int 32764)))
-				(const_int 4)
-				(const_int 8))
-	       (eq (symbol_ref "which_alternative") (const_int 1))
-		  (const_int 16)]
-	     (const_int 20)))])
+   (set_attr_alternative "length"
+     [(if_then_else (and (ge (minus (match_dup 0) (pc))
+			     (const_int -32768))
+			 (lt (minus (match_dup 0) (pc))
+			     (const_int 32764)))
+		    (const_int 4)
+		    (const_int 8))
+      (const_string "16")
+      (const_string "20")
+      (const_string "20")])])
 
 ;; Now the splitter if we could not allocate the CTR register
 (define_split