2005-09-13 Andrew Pinski <pinskia@physics.uc.edu>

        * config/rs6000/darwin.md (movdf_low_si): Mark the outgoing r constraint
        as early clobber.  Rewrite so the PIC register is not implicitly used.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@104241 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ea56ce6..bde5734 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-09-13  Andrew Pinski  <pinskia@physics.uc.edu>
+
+       * config/rs6000/darwin.md (movdf_low_si): Mark the outgoing r constraint
+       as early clobber.  Rewrite so the PIC register is not implicitly used.
+
 2005-09-13  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
        * tree.c (annotate_with_file_line): Compare line numbers before

diff --git a/gcc/config/rs6000/darwin.md b/gcc/config/rs6000/darwin.md
index 5dfa01a..0732817 100644 (file)
--- a/gcc/config/rs6000/darwin.md
+++ b/gcc/config/rs6000/darwin.md
@@ -28,7 +28,7 @@ Boston, MA 02110-1301, USA.  */
   [(set_attr "length" "4")])
 
 (define_insn "movdf_low_si"
-  [(set (match_operand:DF 0 "gpc_reg_operand" "=f,!r")
+  [(set (match_operand:DF 0 "gpc_reg_operand" "=f,!&r")
         (mem:DF (lo_sum:SI (match_operand:SI 1 "gpc_reg_operand" "b,b")
                            (match_operand 2 "" ""))))]
   "TARGET_MACHO && TARGET_HARD_FLOAT && TARGET_FPRS && ! TARGET_64BIT"
@@ -40,27 +40,15 @@ Boston, MA 02110-1301, USA.  */
        return \"lfd %0,lo16(%2)(%1)\";
       case 1:
        {
-         rtx operands2[4];
-         operands2[0] = operands[0];
-         operands2[1] = operands[1];
-         operands2[2] = operands[2];
          if (TARGET_POWERPC64 && TARGET_32BIT)
            /* Note, old assemblers didn't support relocation here.  */
            return \"ld %0,lo16(%2)(%1)\";
          else
-         {
-           operands2[3] = gen_rtx_REG (SImode, RS6000_PIC_OFFSET_TABLE_REGNUM);
-           output_asm_insn (\"{l|lwz} %0,lo16(%2)(%1)\", operands);
-#if TARGET_MACHO
-           if (MACHO_DYNAMIC_NO_PIC_P)
-             output_asm_insn (\"{liu|lis} %L0,ha16(%2+4)\", operands);
-           else
-           /* We cannot rely on ha16(low half)==ha16(high half), alas,
-              although in practice it almost always is.  */
-           output_asm_insn (\"{cau|addis} %L0,%3,ha16(%2+4)\", operands2);
-#endif
-           return (\"{l|lwz} %L0,lo16(%2+4)(%L0)\");
-         }
+           {
+             output_asm_insn (\"{l|lwz} %0,lo16(%2)(%1)\", operands);
+             output_asm_insn (\"{cal|la} %L0,lo16(%2)(%1)\", operands);
+             return (\"{l|lwz} %L0,4(%L0)\");
+           }
        }
       default:
        gcc_unreachable ();