From 9b396d7ccef4c96f577b6b97ed3604527cfb9181 Mon Sep 17 00:00:00 2001
From: Roger Sayle <roger@eyesopen.com>
Date: Thu, 17 Feb 2005 22:32:29 +0000
Subject: re PR tree-optimization/19917 (Weak const function mishandled inside
 loop)

	PR tree-optimization/19917
	* tree-eh.c (tree_could_trap_p): Consider calls to weak functions
	to be potentially trapping.

From-SVN: r95200
---
 gcc/tree-eh.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'gcc/tree-eh.c')

diff --git a/gcc/tree-eh.c b/gcc/tree-eh.c
index 20660e4..34c5cab 100644
--- a/gcc/tree-eh.c
+++ b/gcc/tree-eh.c
@@ -1840,6 +1840,13 @@ tree_could_trap_p (tree expr)
 	return true;
       return false;
 
+    case CALL_EXPR:
+      t = get_callee_fndecl (expr);
+      /* Assume that calls to weak functions may trap.  */
+      if (!t || !DECL_P (t) || DECL_WEAK (t))
+	return true;
+      return false;
+
     default:
       /* Any floating arithmetic may trap.  */
       if (fp_operation && flag_trapping_math)
-- 
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