From: Jan Hubicka <jh@suse.cz>
Date: Thu, 19 Oct 2000 12:27:28 +0000 (+0200)
Subject: * i386.h (CONST_OK_FOR_LETTER): Re-add 'N'; document.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1aa9fd241121a0fe7e60acd60946e757012a3cd6;p=gcc.git

* i386.h (CONST_OK_FOR_LETTER): Re-add 'N'; document.

From-SVN: r36949
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 61cd3aed827..a6eb5d9c85d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+Thu Oct 19 14:25:11 MET DST 2000  Jan Hubicka  <jh@suse.cz>
+
+	* i386.h (CONST_OK_FOR_LETTER): Re-add 'N'; document.
+
 2000-10-18  Chandrakala Chavva  <cchavva@redhat.com>
 
         * expmed.c (expand_mult): Don't do synth_mult optimization for -ftrapv.
@@ -120,7 +124,7 @@
 	* emit-rtl.c (init_emit_once): Initialize the const_int_htab
 	earlier.
 	
-2000-10-18  Jan Hubikca  <jh@suse.cz>
+2000-10-18  Jan Hubicka  <jh@suse.cz>
 
         * i386.c (ix86_comparison_operator, put_condition_code,
         ix86_match_ccmode, ix86_cc_mode): Handle CCRCmode.
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 7cf818da902..10ef1e117e0 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -1045,6 +1045,7 @@ enum reg_class
    K is for signed imm8 operands.
    L is for andsi as zero-extending move.
    M is for shifts that can be executed by the "lea" opcode.
+   N is for immedaite operands for out/in instructions (0-255)
    */
 
 #define CONST_OK_FOR_LETTER_P(VALUE, C)				\
@@ -1053,6 +1054,7 @@ enum reg_class
    : (C) == 'K' ? (VALUE) >= -128 && (VALUE) <= 127		\
    : (C) == 'L' ? (VALUE) == 0xff || (VALUE) == 0xffff		\
    : (C) == 'M' ? (VALUE) >= 0 && (VALUE) <= 3			\
+   : (C) == 'N' ? (VALUE) >= 0 && (VALUE) <= 255		\
    : 0)
 
 /* Similar, but for floating constants, and defining letters G and H.