(output_float_compare): For pentiumpro use fcomip

From-SVN: r14048

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 93480fc..4a17d80 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -3737,9 +3737,25 @@ output_float_compare (insn, operands)
         `fcompp' float compare */
 
       if (unordered_compare)
-       output_asm_insn ("fucompp", operands);
+       if (cc_status.flags & CC_FCOMI)
+         {
+           output_asm_insn (AS2 (fucomip,%y1,%0), operands);
+           output_asm_insn (AS1 (fstp, %y0), operands);
+           RET;
+         }
+       else
+         output_asm_insn ("fucompp", operands);
       else
-       output_asm_insn ("fcompp", operands);
+       {
+       if (cc_status.flags & CC_FCOMI)
+         {
+           output_asm_insn (AS2 (fcomip, %y1,%0), operands);
+           output_asm_insn (AS1 (fstp, %y0), operands);
+           RET;
+         }
+       else
+         output_asm_insn ("fcompp", operands);
+       }
     }
   else
     {
@@ -3764,13 +3780,7 @@ output_float_compare (insn, operands)
        output_op_from_reg (operands[1], strcat (buf, AS1 (%z0,%1)));
       else if (cc_status.flags & CC_FCOMI) 
        {
-         rtx xops[3];
-         
-         xops[0] = operands[0];
-         xops[1] = operands[1];
-         xops[2] = operands[0];
-         
-         output_asm_insn (strcat (buf, AS2 (%z1,%y1,%2)), xops);
+         output_asm_insn (strcat (buf, AS2 (%z1,%y1,%0)), operands);
          RET;
        }
       else