<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">From 68e568c28eb6e4d15b06dc23b27168e783ce008c Mon Sep 17 00:00:00 2001
From: Mark Mitchell &lt;mark@codesourcery.com&gt;
Date: Mon, 19 Mar 2001 18:53:04 +0000
Subject: cse.c (find_comparison_args): Update documentation.

	* cse.c (find_comparison_args): Update documentation.  Fix
	mishandling of COMPARE operations.

	* tree.def (ABS_EXPR): Add documentation.
	* fold-const.c (fold): Improve folding of ABS_EXPRs.

From-SVN: r40630
---
 gcc/tree.def | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'gcc/tree.def')

diff --git a/gcc/tree.def b/gcc/tree.def
index 4ccd6e38944..399e05706a8 100644
--- a/gcc/tree.def
+++ b/gcc/tree.def
@@ -602,7 +602,13 @@ DEFTREECODE (NEGATE_EXPR, "negate_expr", '1', 1)
 
 DEFTREECODE (MIN_EXPR, "min_expr", '2', 2)
 DEFTREECODE (MAX_EXPR, "max_expr", '2', 2)
+
+/* Represents the absolute value of the operand.
+
+   An ABS_EXPR must have either an INTEGER_TYPE or a REAL_TYPE.  The
+   operand of the ABS_EXPR must have the same type.  */
 DEFTREECODE (ABS_EXPR, "abs_expr", '1', 1)
+
 DEFTREECODE (FFS_EXPR, "ffs_expr", '1', 1)
 
 /* Shift operations for shift and rotate.
-- 
cgit v1.2.1

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