Avoid pcmpe insns when not valuable.

 *  gcc/config/microblaze/microblaze.c (microblaze_emit_compare):
     Use xor for EQ/NE comparisions
 *  gcc/config/microblaze/microblaze.md (cstoresf4): Add constraints
     (cbranchsf4): Adjust operator to comparison_operator

From-SVN: r196315

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 51a19f56aaa81c03ad2003af350975105c88fb5c..4ebe5039cd24adb8fbf42fb68b9eae708aec3b77 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2013-02-27  Edgar E. Iglesias <edgar.iglesias@gmail.com>
+
+       *  config/microblaze/microblaze.c (microblaze_emit_compare):
+       Use xor for EQ/NE comparisions
+       *  config/microblaze/microblaze.md (cstoresf4): Add constraints
+       (cbranchsf4): Adjust operator to comparison_operator
+
 2013-02-27  Jakub Jelinek  <jakub@redhat.com>
 
        PR middle-end/56461

diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
index fc0296e2c15fccf39e3b3a7eca74f73604d9e989..f45d30cf450756a88cfc646b1d8dc7b392bf0ff1 100644 (file)
--- a/gcc/config/microblaze/microblaze.c
+++ b/gcc/config/microblaze/microblaze.c
@@ -2842,21 +2842,8 @@ microblaze_emit_compare (enum machine_mode mode, rtx cmp, enum rtx_code *cmp_cod
 
   if (code == EQ || code == NE)
     {
-      if (TARGET_PATTERN_COMPARE && GET_CODE(cmp_op1) == REG) 
-        {
-          if (code == EQ) 
-           {
-             emit_insn (gen_seq_internal_pat (comp_reg, cmp_op0, cmp_op1));
-             *cmp_code = NE;
-           }
-         else
-           {    
-             emit_insn (gen_sne_internal_pat (comp_reg, cmp_op0, cmp_op1));
-           }
-        }
-      else
-       /* Use xor for equal/not-equal comparison.  */
-       emit_insn (gen_xorsi3 (comp_reg, cmp_op0, cmp_op1));
+      /* Use xor for equal/not-equal comparison.  */
+      emit_insn (gen_xorsi3 (comp_reg, cmp_op0, cmp_op1));
     }
   else if (code == GT || code == GTU || code == LE || code == LEU)
     {

diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md
index 1b4200307cb6b7474126affa778eba6881ee88f7..339186455baf2d84a20e949f88e9c689f21729d0 100644 (file)
--- a/gcc/config/microblaze/microblaze.md
+++ b/gcc/config/microblaze/microblaze.md
@@ -1637,10 +1637,10 @@
 ;; Setting a register from an floating point comparison. 
 ;;----------------------------------------------------------------
 (define_insn "cstoresf4"
-   [(set (match_operand:SI 0 "register_operand")
-        (match_operator:SI 1 "ordered_comparison_operator"
-             [(match_operand:SF 2 "register_operand")
-              (match_operand:SF 3 "register_operand")]))]
+   [(set (match_operand:SI 0 "register_operand" "=r")
+        (match_operator 1 "comparison_operator"
+             [(match_operand:SF 2 "register_operand" "r")
+              (match_operand:SF 3 "register_operand" "r")]))]
   "TARGET_HARD_FLOAT"
   "fcmp.%C1\t%0,%3,%2"
   [(set_attr "type"     "fcmp")
@@ -1667,7 +1667,7 @@
 
 (define_expand "cbranchsf4"
   [(set (pc)
-       (if_then_else (match_operator:SI 0 "ordered_comparison_operator"
+       (if_then_else (match_operator 0 "comparison_operator"
                       [(match_operand:SF 1 "register_operand")
                        (match_operand:SF 2 "register_operand")])
                      (label_ref (match_operand 3 ""))