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builtins.c (expand_builtin_memcmp): Adjust MEM_SIZE to reflect size of memory regions being compared. 

* builtins.c (expand_builtin_memcmp): Adjust MEM_SIZE to
	reflect size of memory regions being compared.

From-SVN: r88142
This commit is contained in:
Ulrich Weigand 2004-09-26 19:15:00 +00:00 committed by Ulrich Weigand
parent 931e6c29a7
commit 6cbaec9e89
2 changed files with 13 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-09-26 Ulrich Weigand <uweigand@de.ibm.com>
* builtins.c (expand_builtin_memcmp): Adjust MEM_SIZE to
reflect size of memory regions being compared.
2004-09-26 Ulrich Weigand <uweigand@de.ibm.com>
* builtins.c (get_memory_rtx): Set mem attributes for non-ADDR_EXPR

8
gcc/builtins.c
View File

@ -3540,6 +3540,14 @@ expand_builtin_memcmp (tree exp ATTRIBUTE_UNUSED, tree arglist, rtx target,
arg1_rtx = get_memory_rtx (arg1);
arg2_rtx = get_memory_rtx (arg2);
arg3_rtx = expand_expr (len, NULL_RTX, VOIDmode, 0);
/* Set MEM_SIZE as appropriate. */
if (GET_CODE (arg3_rtx) == CONST_INT)
{
set_mem_size (arg1_rtx, arg3_rtx);
set_mem_size (arg2_rtx, arg3_rtx);
}
#ifdef HAVE_cmpmemsi
if (HAVE_cmpmemsi)
insn = gen_cmpmemsi (result, arg1_rtx, arg2_rtx, arg3_rtx,