From: Jakub Jelinek <jakub@redhat.com>
Date: Tue, 14 Dec 2004 18:12:32 +0000 (+0100)
Subject: re PR middle-end/18951 (Invalid code generated by expand_errno_check)
X-Git-Tag: releases/gcc-3.4.4~414
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e695d45405e6163ba4834e2204faac25491d283c;p=thirdparty%2Fgcc.git

re PR middle-end/18951 (Invalid code generated by expand_errno_check)

	PR middle-end/18951
	* builtins.c (expand_builtin_mathfn, expand_builtin_mathfn_2): Avoid
	using arguments passed to save_expr after that call.

	* gcc.c-torture/execute/20041213-1.c: New test.

From-SVN: r92153
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 960f06b6f1ff..f87baa592919 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2004-12-14  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/18951
+	* builtins.c (expand_builtin_mathfn, expand_builtin_mathfn_2): Avoid
+	using arguments passed to save_expr after that call.
+
 2004-12-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
 	PR middle-end/18730
diff --git a/gcc/builtins.c b/gcc/builtins.c
index dadb6cd41a0e..4cb42cc61e24 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -1708,6 +1708,7 @@ expand_builtin_mathfn (tree exp, rtx target, rtx subtarget)
       narg = save_expr (arg);
       if (narg != arg)
 	{
+	  arg = narg;
 	  arglist = build_tree_list (NULL_TREE, arg);
 	  exp = build_function_call_expr (fndecl, arglist);
 	}
@@ -1840,6 +1841,7 @@ expand_builtin_mathfn_2 (tree exp, rtx target, rtx subtarget)
   narg = save_expr (arg1);
   if (narg != arg1)
     {
+      arg1 = narg;
       temp = build_tree_list (NULL_TREE, narg);
       stable = false;
     }
@@ -1849,6 +1851,7 @@ expand_builtin_mathfn_2 (tree exp, rtx target, rtx subtarget)
   narg = save_expr (arg0);
   if (narg != arg0)
     {
+      arg0 = narg;
       arglist = tree_cons (NULL_TREE, narg, temp);
       stable = false;
     }
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 604261748021..7adcb330f4cf 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2004-12-14  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/18951
+	* gcc.c-torture/execute/20041213-1.c: New test.
+
 2004-12-13  Richard Henderson  <rth@redhat.com>
 
 	* gcc.dg/i386-sse-10.c: Fix typo in options.