mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-04-19 07:10:25 +08:00
Code Issues Packages Projects Releases Wiki Activity

re PR lto/47641 (gcc.dg/lto/20101009-1 c_lto_20101009-1_0.o-c_lto_20101009-1_0.o link ICE)

Browse Source 
2011-02-08  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/47641
	* tree-ssa.c (execute_update_addresses_taken): For asm outputs
	require type compatibility.

From-SVN: r169925
This commit is contained in:
Richard Guenther 2011-02-08 12:53:50 +00:00 committed by Richard Biener
parent 0efb9d64ad
commit 62902f3fea
2 changed files with 15 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2011-02-08 Richard Guenther <rguenther@suse.de>
PR tree-optimization/47641
* tree-ssa.c (execute_update_addresses_taken): For asm outputs
require type compatibility.
2011-02-08 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* gimple-low.c (lower_function_body): Don't remove the location of

13
gcc/tree-ssa.c
View File

@ -1898,7 +1898,7 @@ non_rewritable_lvalue_p (tree lhs)
/* A decl that is wrapped inside a MEM-REF that covers
it full is also rewritable.
??? The following could be relaxed allowing component
references that do not change the access size. */ ;
references that do not change the access size. */
if (TREE_CODE (lhs) == MEM_REF
&& TREE_CODE (TREE_OPERAND (lhs, 0)) == ADDR_EXPR
&& integer_zerop (TREE_OPERAND (lhs, 1)))
@ -2039,11 +2039,16 @@ execute_update_addresses_taken (void)
{
tree link = gimple_asm_output_op (stmt, i);
tree lhs = TREE_VALUE (link);
if (TREE_CODE (lhs) != SSA_NAME
&& non_rewritable_lvalue_p (lhs))
if (TREE_CODE (lhs) != SSA_NAME)
{
decl = get_base_address (lhs);
if (DECL_P (decl))
if (DECL_P (decl)
&& (non_rewritable_lvalue_p (lhs)
/* We cannot move required conversions from
the lhs to the rhs in asm statements, so
require we do not need any. */
|| !useless_type_conversion_p
(TREE_TYPE (lhs), TREE_TYPE (decl))))
bitmap_set_bit (not_reg_needs, DECL_UID (decl));
}
}