re PR target/19240 (runtime performance regression in floating point heavy code, x86/SSE)

	PR target/19240
	* config/i386/i386.md (*fop_df_1_i387): Disable for TARGET_SSE_MATH.
	(*fop_df_1_i387): Disable for (TARGET_SSE2 && TARGET_SSE_MATH).

From-SVN: r92891

gcc/ChangeLog

+2005-01-04  Uros Bizjak  <uros@kss-loka.si>
+
+	PR target/19240
+	* config/i386/i386.md (*fop_df_1_i387): Disable for TARGET_SSE_MATH.
+	(*fop_df_1_i387): Disable for (TARGET_SSE2 && TARGET_SSE_MATH).
+
 2005-01-03  Richard Henderson  <rth@redhat.com>
 
 	* fold-const.c (force_fit_type): Cope with types larger than 2 HWI.

gcc/config/i386/i386.md

@@ -14199,12 +14199,13 @@
               (const_string "sseadd")))
    (set_attr "mode" "SF")])
 
+;; This pattern is not fully shadowed by the pattern above.
 (define_insn "*fop_sf_1_i387"
   [(set (match_operand:SF 0 "register_operand" "=f,f")
 	(match_operator:SF 3 "binary_fp_operator"
 			[(match_operand:SF 1 "nonimmediate_operand" "0,fm")
 			 (match_operand:SF 2 "nonimmediate_operand" "fm,0")]))]
-  "TARGET_80387
+  "TARGET_80387 && !TARGET_SSE_MATH
    && !COMMUTATIVE_ARITH_P (operands[3])
    && (GET_CODE (operands[1]) != MEM || GET_CODE (operands[2]) != MEM)"
   "* return output_387_binary_op (insn, operands);"
@@ -14345,12 +14346,13 @@
               ]
               (const_string "sseadd")))])
 
+;; This pattern is not fully shadowed by the pattern above.
 (define_insn "*fop_df_1_i387"
   [(set (match_operand:DF 0 "register_operand" "=f,f")
 	(match_operator:DF 3 "binary_fp_operator"
 			[(match_operand:DF 1 "nonimmediate_operand" "0,fm")
 			 (match_operand:DF 2 "nonimmediate_operand" "fm,0")]))]
-  "TARGET_80387
+  "TARGET_80387 && !(TARGET_SSE2 && TARGET_SSE_MATH)
    && !COMMUTATIVE_ARITH_P (operands[3])
    && (GET_CODE (operands[1]) != MEM || GET_CODE (operands[2]) != MEM)"
   "* return output_387_binary_op (insn, operands);"