diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/builtins.c | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 718e131..9c745f9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 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 expressions. Always clear MEM_SIZE and alias set. diff --git a/gcc/builtins.c b/gcc/builtins.c index 9127f45..1aeae96 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -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, |