From: Richard Henderson <rth@redhat.com>
Date: Wed, 29 May 2002 20:34:28 +0000 (-0700)
Subject: i386.c (ix86_compute_frame_layout): Do add bottom alignment for alloca.
X-Git-Tag: releases/gcc-3.1.1~235
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4da1d804836f1babea33b921132ac8b94a4529cb;p=thirdparty%2Fgcc.git

i386.c (ix86_compute_frame_layout): Do add bottom alignment for alloca.

        * config/i386/i386.c (ix86_compute_frame_layout): Do add bottom
        alignment for alloca.

        * gcc.c-torture/execute/alloca-1.c: New.

From-SVN: r54020
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ef4468c584d6..5c7c42a51620 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2002-05-29  Richard Henderson  <rth@redhat.com>
+
+	* config/i386/i386.c (ix86_compute_frame_layout): Do add bottom
+	alignment for alloca.
+
 2002-05-29  Neil Booth  <neil@daikokuya.demon.co.uk>
 
 	PR preprocessor/6844
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index bf9fb6d57385..48f646a14942 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -4025,8 +4025,9 @@ ix86_compute_frame_layout (frame)
   else
     frame->outgoing_arguments_size = 0;
 
-  /* Align stack boundary.  Only needed if we're calling another function.  */
-  if (!current_function_is_leaf)
+  /* Align stack boundary.  Only needed if we're calling another function
+     or using alloca.  */
+  if (!current_function_is_leaf || current_function_calls_alloca)
     frame->padding2 = ((offset + preferred_alignment - 1)
 		       & -preferred_alignment) - offset;
   else