diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index d122379..7947907 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -49,6 +49,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA #include "basic-block.h" #include "tree-mudflap.h" #include "tree-flow.h" +#include "value-prof.h" #ifndef PAD_VARARGS_DOWN #define PAD_VARARGS_DOWN BYTES_BIG_ENDIAN @@ -3099,6 +3100,8 @@ expand_builtin_memcpy (tree exp, rtx target, enum machine_mode mode) rtx dest_mem, src_mem, dest_addr, len_rtx; tree result = fold_builtin_memory_op (arglist, TREE_TYPE (TREE_TYPE (fndecl)), false, /*endp=*/0); + HOST_WIDE_INT expected_size = -1; + unsigned int expected_align = 0; if (result) { @@ -3119,7 +3122,10 @@ expand_builtin_memcpy (tree exp, rtx target, enum machine_mode mode) operation in-line. */ if (src_align == 0) return 0; - + + stringop_block_profile (exp, &expected_align, &expected_size); + if (expected_align < dest_align) + expected_align = dest_align; dest_mem = get_memory_rtx (dest, len); set_mem_align (dest_mem, dest_align); len_rtx = expand_normal (len); @@ -3146,9 +3152,10 @@ expand_builtin_memcpy (tree exp, rtx target, enum machine_mode mode) set_mem_align (src_mem, src_align); /* Copy word part most expediently. */ - dest_addr = emit_block_move (dest_mem, src_mem, len_rtx, - CALL_EXPR_TAILCALL (exp) - ? BLOCK_OP_TAILCALL : BLOCK_OP_NORMAL); + dest_addr = emit_block_move_hints (dest_mem, src_mem, len_rtx, + CALL_EXPR_TAILCALL (exp) + ? BLOCK_OP_TAILCALL : BLOCK_OP_NORMAL, + expected_align, expected_size); if (dest_addr == 0) { @@ -3640,6 +3647,8 @@ expand_builtin_memset (tree arglist, rtx target, enum machine_mode mode, char c; unsigned int dest_align; rtx dest_mem, dest_addr, len_rtx; + HOST_WIDE_INT expected_size = -1; + unsigned int expected_align = 0; dest_align = get_pointer_alignment (dest, BIGGEST_ALIGNMENT); @@ -3648,6 +3657,10 @@ expand_builtin_memset (tree arglist, rtx target, enum machine_mode mode, if (dest_align == 0) return 0; + stringop_block_profile (orig_exp, &expected_align, &expected_size); + if (expected_align < dest_align) + expected_align = dest_align; + /* If the LEN parameter is zero, return DEST. */ if (integer_zerop (len)) { @@ -3687,7 +3700,7 @@ expand_builtin_memset (tree arglist, rtx target, enum machine_mode mode, builtin_memset_gen_str, val_rtx, dest_align, 0); } else if (!set_storage_via_setmem (dest_mem, len_rtx, val_rtx, - dest_align)) + dest_align, -1, 0)) goto do_libcall; dest_mem = force_operand (XEXP (dest_mem, 0), NULL_RTX); @@ -3707,7 +3720,8 @@ expand_builtin_memset (tree arglist, rtx target, enum machine_mode mode, store_by_pieces (dest_mem, tree_low_cst (len, 1), builtin_memset_read_str, &c, dest_align, 0); else if (!set_storage_via_setmem (dest_mem, len_rtx, GEN_INT (c), - dest_align)) + dest_align, expected_align, + expected_size)) goto do_libcall; dest_mem = force_operand (XEXP (dest_mem, 0), NULL_RTX); @@ -3716,9 +3730,10 @@ expand_builtin_memset (tree arglist, rtx target, enum machine_mode mode, } set_mem_align (dest_mem, dest_align); - dest_addr = clear_storage (dest_mem, len_rtx, - CALL_EXPR_TAILCALL (orig_exp) - ? BLOCK_OP_TAILCALL : BLOCK_OP_NORMAL); + dest_addr = clear_storage_hints (dest_mem, len_rtx, + CALL_EXPR_TAILCALL (orig_exp) + ? BLOCK_OP_TAILCALL : BLOCK_OP_NORMAL, + expected_align, expected_size); if (dest_addr == 0) { |