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[1/3] expr: Export clear_by_pieces()

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Make clear_by_pieces() available to other parts of the compiler,
similar to store_by_pieces().

gcc/ChangeLog:

	* expr.cc (clear_by_pieces): Remove static from clear_by_pieces.
	* expr.h (clear_by_pieces): Add prototype for clear_by_pieces.
This commit is contained in:
Christoph Müllner 2024-05-14 09:19:13 -06:00 committed by Jeff Law
parent c1356e8cc9
commit e6e41b68fd
2 changed files with 6 additions and 5 deletions
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6
gcc/expr.cc
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@ -85,7 +85,6 @@ static void emit_block_move_via_sized_loop (rtx, rtx, rtx, unsigned, unsigned);
static void emit_block_move_via_oriented_loop (rtx, rtx, rtx, unsigned, unsigned);
static rtx emit_block_cmp_via_loop (rtx, rtx, rtx, tree, rtx, bool,
unsigned, unsigned);
static void clear_by_pieces (rtx, unsigned HOST_WIDE_INT, unsigned int);
static rtx_insn *compress_float_constant (rtx, rtx);
static rtx get_subtarget (rtx);
static rtx store_field (rtx, poly_int64, poly_int64, poly_uint64, poly_uint64,
@ -1840,10 +1839,7 @@ store_by_pieces (rtx to, unsigned HOST_WIDE_INT len,
return to;
}
/* Generate several move instructions to clear LEN bytes of block TO. (A MEM
rtx with BLKmode). ALIGN is maximum alignment we can assume. */
static void
void
clear_by_pieces (rtx to, unsigned HOST_WIDE_INT len, unsigned int align)
{
if (len == 0)

5
gcc/expr.h
View File

@ -245,6 +245,11 @@ extern bool can_store_by_pieces (unsigned HOST_WIDE_INT,
extern rtx store_by_pieces (rtx, unsigned HOST_WIDE_INT, by_pieces_constfn,
void *, unsigned int, bool, memop_ret);
/* Generate several move instructions to clear LEN bytes of block TO. (A MEM
rtx with BLKmode). ALIGN is maximum alignment we can assume. */
extern void clear_by_pieces (rtx, unsigned HOST_WIDE_INT, unsigned int);
/* If can_store_by_pieces passes for worst-case values near MAX_LEN, call
store_by_pieces within conditionals so as to handle variable LEN efficiently,
storing VAL, if non-NULL_RTX, or valc instead. */