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re PR bootstrap/39645 (uninitialized variable in genattrtab.c)

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PR bootstrap/39645
	* config/sparc/sparc.c (sparc_gimplify_va_arg): Set TREE_ADDRESSABLE
	on the destination of memcpy.

From-SVN: r146772
This commit is contained in:
Eric Botcazou 2009-04-25 13:32:43 +00:00 committed by Eric Botcazou
parent a687f83c5a
commit 3764d512d5
2 changed files with 17 additions and 14 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-04-25 Eric Botcazou <ebotcazou@adacore.com>
PR bootstrap/39645
* config/sparc/sparc.c (sparc_gimplify_va_arg): Set TREE_ADDRESSABLE
on the destination of memcpy.
2009-04-25 Paolo Bonzini <bonzini@gnu.org>
* doc/tm.texi (REGNO_OK_FOR_BASE_P, REGNO_MODE_OK_FOR_BASE_P,

25
gcc/config/sparc/sparc.c
View File

@ -5740,7 +5740,7 @@ sparc_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
size = int_size_in_bytes (type);
rsize = (size + UNITS_PER_WORD - 1) & -UNITS_PER_WORD;
align = 0;
if (TARGET_ARCH64)
{
/* For SPARC64, objects requiring 16-byte alignment get it. */
@ -5782,28 +5782,25 @@ sparc_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
addr = fold_convert (build_pointer_type (ptrtype), addr);
addr = build_va_arg_indirect_ref (addr);
}
/* If the address isn't aligned properly for the type,
we may need to copy to a temporary.
FIXME: This is inefficient. Usually we can do this
in registers. */
else if (align == 0
&& TYPE_ALIGN (type) > BITS_PER_WORD)
/* If the address isn't aligned properly for the type, we need a temporary.
FIXME: This is inefficient, usually we can do this in registers. */
else if (align == 0 && TYPE_ALIGN (type) > BITS_PER_WORD)
{
tree tmp = create_tmp_var (type, "va_arg_tmp");
tree dest_addr = build_fold_addr_expr (tmp);
tree copy = build_call_expr (implicit_built_in_decls[BUILT_IN_MEMCPY], 3,
dest_addr,
addr,
size_int (rsize));
tree copy = build_call_expr (implicit_built_in_decls[BUILT_IN_MEMCPY],
3, dest_addr, addr, size_int (rsize));
TREE_ADDRESSABLE (tmp) = 1;
gimplify_and_add (copy, pre_p);
addr = dest_addr;
}
else
addr = fold_convert (ptrtype, addr);
incr = fold_build2 (POINTER_PLUS_EXPR, ptr_type_node, incr, size_int (rsize));
incr
= fold_build2 (POINTER_PLUS_EXPR, ptr_type_node, incr, size_int (rsize));
gimplify_assign (valist, incr, post_p);
return build_va_arg_indirect_ref (addr);