s390.md ("*add<mode>3_alc_carry1_cc", [...]): New insn definitions.

2007-08-30  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

	* config/s390/s390.md ("*add<mode>3_alc_carry1_cc",
	"*add<mode>3_alc_carry1_cconly", "*add<mode>3_alc_carry2_cc",
	"*add<mode>3_alc_carry2_cconly"): New insn definitions.

From-SVN: r127921

gcc/ChangeLog

 2007-08-30  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 
+	* config/s390/s390.md ("*add<mode>3_alc_carry1_cc",
+	"*add<mode>3_alc_carry1_cconly", "*add<mode>3_alc_carry2_cc",
+	"*add<mode>3_alc_carry2_cconly"): New insn definitions.
+
+2007-08-30  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
+
 	* config/s390/s390.c (s390_expand_addcc): Emit canonical alc
 	pattern.
 	* config/s390/s390.md ("*add<mode>3_alc_cc", "*add<mode>3_alc",

gcc/config/s390/s390.md

@@ -4306,6 +4306,75 @@
 ; add(di|si)cc instruction pattern(s).
 ;
 
+; the following 4 patterns are used when the result of an add with
+; carry is checked for an overflow condition
+
+; op1 + op2 + c < op1
+
+; alcr, alc, alcgr, alcg
+(define_insn "*add<mode>3_alc_carry1_cc"
+  [(set (reg CC_REGNUM)
+        (compare
+          (plus:GPR (plus:GPR (match_operand:GPR 3 "s390_alc_comparison" "")
+                              (match_operand:GPR 1 "nonimmediate_operand" "%0,0"))
+                    (match_operand:GPR 2 "general_operand" "d,m"))
+          (match_dup 1)))
+   (set (match_operand:GPR 0 "register_operand" "=d,d")
+        (plus:GPR (plus:GPR (match_dup 3) (match_dup 1)) (match_dup 2)))]
+  "s390_match_ccmode (insn, CCL1mode) && TARGET_CPU_ZARCH"
+  "@
+   alc<g>r\t%0,%2
+   alc<g>\t%0,%2"
+  [(set_attr "op_type"  "RRE,RXY")])
+
+; alcr, alc, alcgr, alcg
+(define_insn "*add<mode>3_alc_carry1_cconly"
+  [(set (reg CC_REGNUM)
+        (compare
+          (plus:GPR (plus:GPR (match_operand:GPR 3 "s390_alc_comparison" "")
+                              (match_operand:GPR 1 "nonimmediate_operand" "%0,0"))
+                    (match_operand:GPR 2 "general_operand" "d,m"))
+          (match_dup 1)))
+   (clobber (match_scratch:GPR 0 "=d,d"))]
+  "s390_match_ccmode (insn, CCL1mode) && TARGET_CPU_ZARCH"
+  "@
+   alc<g>r\t%0,%2
+   alc<g>\t%0,%2"
+  [(set_attr "op_type"  "RRE,RXY")])
+
+; op1 + op2 + c < op2
+
+; alcr, alc, alcgr, alcg
+(define_insn "*add<mode>3_alc_carry2_cc"
+  [(set (reg CC_REGNUM)
+        (compare
+          (plus:GPR (plus:GPR (match_operand:GPR 3 "s390_alc_comparison" "")
+                              (match_operand:GPR 1 "nonimmediate_operand" "%0,0"))
+                    (match_operand:GPR 2 "general_operand" "d,m"))
+          (match_dup 2)))
+   (set (match_operand:GPR 0 "register_operand" "=d,d")
+        (plus:GPR (plus:GPR (match_dup 3) (match_dup 1)) (match_dup 2)))]
+  "s390_match_ccmode (insn, CCL1mode) && TARGET_CPU_ZARCH"
+  "@
+   alc<g>r\t%0,%2
+   alc<g>\t%0,%2"
+  [(set_attr "op_type"  "RRE,RXY")])
+
+; alcr, alc, alcgr, alcg
+(define_insn "*add<mode>3_alc_carry2_cconly"
+  [(set (reg CC_REGNUM)
+        (compare
+          (plus:GPR (plus:GPR (match_operand:GPR 3 "s390_alc_comparison" "")
+                              (match_operand:GPR 1 "nonimmediate_operand" "%0,0"))
+                    (match_operand:GPR 2 "general_operand" "d,m"))
+          (match_dup 2)))
+   (clobber (match_scratch:GPR 0 "=d,d"))]
+  "s390_match_ccmode (insn, CCL1mode) && TARGET_CPU_ZARCH"
+  "@
+   alc<g>r\t%0,%2
+   alc<g>\t%0,%2"
+  [(set_attr "op_type"  "RRE,RXY")])
+
 ; alcr, alc, alcgr, alcg
 (define_insn "*add<mode>3_alc_cc"
   [(set (reg CC_REGNUM)