i386.c (ix86_use_fcomi_compare): Make global.

	* config/i386/i386.c (ix86_use_fcomi_compare): Make global.
	* config/i386/i386-protos.h (ix86_use_fcomi_compare): Declare.
	* config/i386/i386.md (*fp_jcc_3, *fp_jcc_4): Disable if we
	will use FCOMI.

From-SVN: r34338

gcc/ChangeLog

+Thu Jun  1 09:37:35 2000  Clinton Popetz  <cpopetz@cygnus.com>
+
+	* config/i386/i386.c (ix86_use_fcomi_compare): Make global.
+	* config/i386/i386-protos.h (ix86_use_fcomi_compare): Declare.
+	* config/i386/i386.md (*fp_jcc_3, *fp_jcc_4): Disable if we
+	will use FCOMI.
+	
 2000-06-01  Richard Henderson  <rth@cygnus.com>
 
 	* Makefile.in (c-decl.o): Depend on $(EXPR_H), not expr.h.

gcc/config/i386/i386-protos.h

@@ -99,6 +99,7 @@ extern int ix86_unary_operator_ok PARAMS ((enum rtx_code, enum machine_mode,
 					 rtx[]));
 extern int ix86_match_ccmode PARAMS ((rtx, enum machine_mode));
 extern rtx ix86_expand_fp_compare PARAMS ((enum rtx_code, rtx, rtx, rtx));
+extern int ix86_use_fcomi_compare PARAMS ((enum rtx_code));
 extern void ix86_expand_branch PARAMS ((enum rtx_code, rtx));
 extern int ix86_expand_setcc PARAMS ((enum rtx_code, rtx));
 extern int ix86_expand_int_movcc PARAMS ((rtx[]));

gcc/config/i386/i386.c

@@ -392,7 +392,6 @@ static void put_condition_code PARAMS ((enum rtx_code, enum machine_mode,
 static enum rtx_code unsigned_comparison PARAMS ((enum rtx_code code));
 static rtx ix86_expand_int_compare PARAMS ((enum rtx_code, rtx, rtx));
 static enum machine_mode ix86_fp_compare_mode PARAMS ((enum rtx_code));
-static int ix86_use_fcomi_compare PARAMS ((enum rtx_code));
 static enum rtx_code ix86_prepare_fp_compare_args PARAMS ((enum rtx_code,
 							   rtx *, rtx *));
 static rtx ix86_expand_compare PARAMS ((enum rtx_code));
@@ -4539,7 +4538,7 @@ ix86_fp_compare_mode (code)
 
 /* Return true if we should use an FCOMI instruction for this fp comparison.  */
 
-static int
+int
 ix86_use_fcomi_compare (code)
      enum rtx_code code;
 {

gcc/config/i386/i386.md

@@ -7153,7 +7153,8 @@
    (clobber (match_scratch:HI 4 "=a"))]
   "TARGET_80387
    && (GET_MODE (operands[1]) == SFmode || GET_MODE (operands[1]) == DFmode)
-   && GET_MODE (operands[1]) == GET_MODE (operands[2])"
+   && GET_MODE (operands[1]) == GET_MODE (operands[2])
+   && !ix86_use_fcomi_compare (GET_CODE (operands[0]))"
   "#")
 
 (define_insn "*fp_jcc_4"
@@ -7168,7 +7169,8 @@
    (clobber (match_scratch:HI 4 "=a"))]
   "TARGET_80387
    && (GET_MODE (operands[1]) == SFmode || GET_MODE (operands[1]) == DFmode)
-   && GET_MODE (operands[1]) == GET_MODE (operands[2])"
+   && GET_MODE (operands[1]) == GET_MODE (operands[2])
+   && !ix86_use_fcomi_compare (GET_CODE (operands[0]))"
   "#")
 
 (define_insn "*fp_jcc_5"