From 7bcc6e758e039a4d6b2f9642d38217beffd1cdd9 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 21 Feb 2013 10:33:49 +0100
Subject: [PATCH] re PR inline-asm/56405 (ICE on questionable "m" argument)
PR inline-asm/56405
* expr.c (expand_expr_real_1) <case TARGET_MEM_REF, MEM_REF>: Don't
use movmisalign or extract_bit_field for EXPAND_MEMORY modifier.
* gcc.c-torture/compile/pr56405.c: New test.
From-SVN: r196195
---
gcc/ChangeLog | 6 ++++++
gcc/expr.c | 2 ++
gcc/testsuite/ChangeLog | 5 +++++
gcc/testsuite/gcc.c-torture/compile/pr56405.c | 7 +++++++
4 files changed, 20 insertions(+)
create mode 100644 gcc/testsuite/gcc.c-torture/compile/pr56405.c
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 98d18c0bc5ce..6859906dbc8d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2013-02-21 Jakub Jelinek <jakub@redhat.com>
+
+ PR inline-asm/56405
+ * expr.c (expand_expr_real_1) <case TARGET_MEM_REF, MEM_REF>: Don't
+ use movmisalign or extract_bit_field for EXPAND_MEMORY modifier.
+
2013-02-20 Jan Hubicka <jh@suse.cz>
PR tree-optimization/56265
diff --git a/gcc/expr.c b/gcc/expr.c
index 08c5c9d0c589..d225479e84ea 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -9551,6 +9551,7 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
set_mem_addr_space (temp, as);
align = get_object_alignment (exp);
if (modifier != EXPAND_WRITE
+ && modifier != EXPAND_MEMORY
&& mode != BLKmode
&& align < GET_MODE_ALIGNMENT (mode)
/* If the target does not have special handling for unaligned
@@ -9639,6 +9640,7 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
if (TREE_THIS_VOLATILE (exp))
MEM_VOLATILE_P (temp) = 1;
if (modifier != EXPAND_WRITE
+ && modifier != EXPAND_MEMORY
&& mode != BLKmode
&& align < GET_MODE_ALIGNMENT (mode))
{
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d79a94f9641c..3ae4dc0c36d1 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2013-02-21 Jakub Jelinek <jakub@redhat.com>
+
+ PR inline-asm/56405
+ * gcc.c-torture/compile/pr56405.c: New test.
+
2013-02-20 Jan Hubicka <jh@suse.cz>
PR tree-optimization/56265
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr56405.c b/gcc/testsuite/gcc.c-torture/compile/pr56405.c
new file mode 100644
index 000000000000..6e6a56e156c1
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr56405.c
@@ -0,0 +1,7 @@
+/* PR inline-asm/56405 */
+
+void
+foo (void)
+{
+ asm volatile ("" : "+m" (*(volatile unsigned short *) 0x1001UL));
+}
--
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