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re PR inline-asm/56405 (ICE on questionable "m" argument)

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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
This commit is contained in:
Jakub Jelinek 2013-02-21 10:33:49 +01:00 • committed by Jakub Jelinek
parent 58edd811c6
commit 7bcc6e758e
4 changed files with 20 additions and 0 deletions
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6
gcc/ChangeLog
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@ -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

2
gcc/expr.c
View file

@ -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))
{

5
gcc/testsuite/ChangeLog
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@ -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

7
gcc/testsuite/gcc.c-torture/compile/pr56405.c Normal file
View file

@ -0,0 +1,7 @@
/* PR inline-asm/56405 */
void
foo (void)
{
asm volatile ("" : "+m" (*(volatile unsigned short *) 0x1001UL));
}