From a940d8bd4858902caa50028fc7df056d6578dda1 Mon Sep 17 00:00:00 2001
From: Clinton Popetz <cpopetz@cygnus.com>
Date: Thu, 1 Jun 2000 14:41:31 +0000
Subject: [PATCH] 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                 | 7 +++++++
 gcc/config/i386/i386-protos.h | 1 +
 gcc/config/i386/i386.c        | 3 +--
 gcc/config/i386/i386.md       | 6 ++++--
 4 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 495ccf840da..40fd0617355 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+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.
diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
index 3bd06b11c0d..d7a4110d4cb 100644
--- a/gcc/config/i386/i386-protos.h
+++ b/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[]));
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 0d9672851a5..23a868229ae 100644
--- a/gcc/config/i386/i386.c
+++ b/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;
 {
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index cdadf5d0e71..36c9d1fbbcc 100644
--- a/gcc/config/i386/i386.md
+++ b/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"