rs6000.md (sCC pattern and splitter): Remove clobber and use result as temporary...

        * config/rs6000/rs6000.md (sCC pattern and splitter): Remove
        clobber and use result as temporary value.

From-SVN: r53168

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4a4d6c1707f01f3e9a1ced582f08979ee4f6d5bf..52e837fe2aa7336d0d63ae40165bb94ecbf55207 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2002-05-04  David Edelsohn  <edelsohn@gnu.org>
+
+       PR c/6543
+       * config/rs6000/rs6000.md (sCC pattern and splitter): Remove
+       clobber and use result as temporary value.
+
 2002-05-03  Jakub Jelinek  <jakub@redhat.com>
 
        PR target/6542

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 1daf554facd9bf0847215a3128904516721b336c..93c6fc3db5631bc9ba744949e2f7785a50ee961b 100644 (file)
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -10903,23 +10903,22 @@
   "")
 
 (define_insn ""
-  [(set (match_operand:CC 5 "cc_reg_operand" "=x,x,x,x,x,?y,?y,?y,?y,?y")
+  [(set (match_operand:CC 4 "cc_reg_operand" "=x,x,x,x,x,?y,?y,?y,?y,?y")
        (compare:CC
         (plus:SI
          (eq:SI (match_operand:SI 1 "gpc_reg_operand" "%r,r,r,r,r,r,r,r,r,r")
                 (match_operand:SI 2 "reg_or_cint_operand" "r,O,K,L,I,r,O,K,L,I"))
          (match_operand:SI 3 "gpc_reg_operand" "r,r,r,r,r,r,r,r,r,r"))
         (const_int 0)))
-   (set (match_operand:SI 0 "gpc_reg_operand" "=r,r,r,r,r,r,r,r,r,r")
-       (plus:SI (eq:SI (match_dup 1) (match_dup 2)) (match_dup 3)))
-   (clobber (match_scratch:SI 4 "=&r,&r,&r,&r,&r,&r,&r,&r,&r,&r"))]
+   (set (match_operand:SI 0 "gpc_reg_operand" "=&r,&r,&r,&r,&r,&r,&r,&r,&r,&r")
+       (plus:SI (eq:SI (match_dup 1) (match_dup 2)) (match_dup 3)))]
   "! TARGET_POWERPC64"
   "@
-   xor %4,%1,%2\;{sfi|subfic} %4,%4,0\;{aze.|addze.} %0,%3
-   {sfi|subfic} %4,%1,0\;{aze.|addze.} %0,%3
-   {xoril|xori} %4,%1,%b2\;{sfi|subfic} %4,%4,0\;{aze.|addze.} %0,%3
-   {xoriu|xoris} %4,%1,%u2\;{sfi|subfic} %4,%4,0\;{aze.|addze.} %0,%3
-   {sfi|subfic} %4,%1,%2\;{sfi|subfic} %4,%4,0\;{aze.|addze.} %0,%3
+   xor %0,%1,%2\;{sfi|subfic} %0,%0,0\;{aze.|addze.} %0,%3
+   {sfi|subfic} %0,%1,0\;{aze.|addze.} %0,%3
+   {xoril|xori} %0,%1,%b2\;{sfi|subfic} %0,%0,0\;{aze.|addze.} %0,%3
+   {xoriu|xoris} %0,%1,%u2\;{sfi|subfic} %0,%0,0\;{aze.|addze.} %0,%3
+   {sfi|subfic} %0,%1,%2\;{sfi|subfic} %0,%0,0\;{aze.|addze.} %0,%3
    #
    #
    #
@@ -10929,7 +10928,7 @@
    (set_attr "length" "12,8,12,12,12,16,12,16,16,16")])
 
 (define_split
-  [(set (match_operand:CC 5 "cc_reg_not_cr0_operand" "")
+  [(set (match_operand:CC 4 "cc_reg_not_cr0_operand" "")
        (compare:CC
         (plus:SI
          (eq:SI (match_operand:SI 1 "gpc_reg_operand" "")
@@ -10937,13 +10936,11 @@
          (match_operand:SI 3 "gpc_reg_operand" ""))
         (const_int 0)))
    (set (match_operand:SI 0 "gpc_reg_operand" "")
-       (plus:SI (eq:SI (match_dup 1) (match_dup 2)) (match_dup 3)))
-   (clobber (match_scratch:SI 4 ""))]
+       (plus:SI (eq:SI (match_dup 1) (match_dup 2)) (match_dup 3)))]
   "! TARGET_POWERPC64 && reload_completed"
-  [(parallel [(set (match_dup 0)
+  [(set (match_dup 0)
        (plus:SI (eq:SI (match_dup 1) (match_dup 2)) (match_dup 3)))
-   (clobber (match_dup 4))])
-   (set (match_dup 5)
+   (set (match_dup 4)
        (compare:CC (match_dup 0)
                    (const_int 0)))]
   "")