From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 12 Nov 2010 11:30:27 +0000 (+0100)
Subject: backport: re PR middle-end/43690 (Internal compiler error detected by avr-gcc.)
X-Git-Tag: releases/gcc-4.4.6~269
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed56217b797ee7b8bd66be0ba2fdbf371dad1828;p=thirdparty%2Fgcc.git

backport: re PR middle-end/43690 (Internal compiler error detected by avr-gcc.)

	Backport from mainline
	2010-11-05  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/43690
	* gimplify.c (gimplify_asm_expr): If a "m" input is a
	{pre,post}{in,de}crement, fail.

	* c-c++-common/pr43690.c: New test.

From-SVN: r166650
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bd022e95b4ae..4f2a16a01d4b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,12 @@
 2010-11-12  Jakub Jelinek  <jakub@redhat.com>
 
 	Backport from mainline
+	2010-11-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/43690
+	* gimplify.c (gimplify_asm_expr): If a "m" input is a
+	{pre,post}{in,de}crement, fail.
+
 	2010-11-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/46107
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index be2b2c0ea0a4..08b992446d26 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,11 @@
 2010-11-12  Jakub Jelinek  <jakub@redhat.com>
 
 	Backport from mainline
+	2010-11-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/43690
+	* c-c++-common/pr43690.c: New test.
+
 	2010-11-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/46107
diff --git a/gcc/testsuite/c-c++-common/pr43690.c b/gcc/testsuite/c-c++-common/pr43690.c
new file mode 100644
index 000000000000..67c6cb0f88cd
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/pr43690.c
@@ -0,0 +1,13 @@
+/* PR middle-end/43690 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+void
+foo (char *x)
+{
+  asm ("" : : "m" (x++));	/* { dg-error "is not directly addressable" } */
+  asm ("" : : "m" (++x));	/* { dg-error "is not directly addressable" } */
+  asm ("" : : "m" (x--));	/* { dg-error "is not directly addressable" } */
+  asm ("" : : "m" (--x));	/* { dg-error "is not directly addressable" } */
+  asm ("" : : "m" (x + 1));	/* { dg-error "is not directly addressable" } */
+}