From cb38fd88af859b9c125ba6d4768969289ea0ebd9 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 16 Sep 2002 23:56:47 -0700 Subject: [PATCH] expr.c (emit_block_move): Set memory block size as appropriate for the copy. * expr.c (emit_block_move): Set memory block size as appropriate for the copy. From-SVN: r57233 --- gcc/ChangeLog | 5 +++++ gcc/expr.c | 10 ++++++++++ 2 files changed, 15 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8b1d3dea5aa..ee29a5a3238 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-09-16 Richard Henderson + + * expr.c (emit_block_move): Set memory block size as appropriate + for the copy. + 2002-09-16 Richard Henderson PR fortran/3924 diff --git a/gcc/expr.c b/gcc/expr.c index 5872ab055fb..4ac7252332f 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -1733,6 +1733,16 @@ emit_block_move (x, y, size, method) if (size == 0) abort (); + /* Set MEM_SIZE as appropriate for this block copy. The main place this + can be incorrect is coming from __builtin_memcpy. */ + if (GET_CODE (size) == CONST_INT) + { + x = shallow_copy_rtx (x); + y = shallow_copy_rtx (y); + set_mem_size (x, size); + set_mem_size (y, size); + } + if (GET_CODE (size) == CONST_INT && MOVE_BY_PIECES_P (INTVAL (size), align)) move_by_pieces (x, y, INTVAL (size), align); else if (emit_block_move_via_movstr (x, y, size, align)) -- 2.30.2