re PR rtl-optimization/9016 (Failure to consistently constant fold "constant" C+...

	PR optimization/9016
	* config/i386/i386.c (ix86_expand_move): Force more CONST_DOUBLEs
	into the constant pool.

From-SVN: r64445

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d7d2eb465618ab4d403b7fdc061bea3198772301..9fee3589340c91fafa38f4804306ba524d56e104 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2003-03-14  Mark Mitchell  <mark@codesourcery.com>
+
+       PR optimization/9016
+       * config/i386/i386.c (ix86_expand_move): Force more CONST_DOUBLEs
+       into the constant pool.
+
 2003-03-16  Falk Hueffner  <falk.hueffner@student.uni-tuebingen.de>
 
        PR target/9164

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index ae2f118215ec96851937772af5d33210fbfe1062..2dddfb7f87730e8062497068ee2e4d6b8736b715 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -8373,9 +8373,17 @@ ix86_expand_move (mode, operands)
 
          if (strict)
            ;
-         else if (GET_CODE (op1) == CONST_DOUBLE
-                  && register_operand (op0, mode))
-           op1 = validize_mem (force_const_mem (mode, op1));
+         else if (GET_CODE (op1) == CONST_DOUBLE)
+           {
+             op1 = validize_mem (force_const_mem (mode, op1));
+             if (!register_operand (op0, mode))
+               {
+                 rtx temp = gen_reg_rtx (mode);
+                 emit_insn (gen_rtx_SET (VOIDmode, temp, op1));
+                 emit_move_insn (op0, temp);
+                 return;
+               }
+           }
        }
     }