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decl.c (build_target_expr): Set TREE_SIDE_EFFECTS on the TARGET_EXPR.

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* decl.c (build_target_expr): Set TREE_SIDE_EFFECTS on the
	TARGET_EXPR.
	* call.c (build_over_call): Don't set TREE_SIDE_EFFECTS on
	the TARGET_EXPR.
	* cvt.c (build_up_reference): Likewise.
	* tree.c (build_cplus_new): Likewise.
	(get_target_expr): Likewise.

From-SVN: r29426
This commit is contained in:
Mark Mitchell 1999-09-15 06:09:53 +00:00 committed by Mark Mitchell
parent 41babf2e0d
commit 9263e6d6cd
5 changed files with 21 additions and 6 deletions
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10
gcc/cp/ChangeLog
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@ -1,3 +1,13 @@
1999-09-14 Mark Mitchell <mark@codesourcery.com>
* decl.c (build_target_expr): Set TREE_SIDE_EFFECTS on the
TARGET_EXPR.
* call.c (build_over_call): Don't set TREE_SIDE_EFFECTS on
the TARGET_EXPR.
* cvt.c (build_up_reference): Likewise.
* tree.c (build_cplus_new): Likewise.
(get_target_expr): Likewise.
Tue Sep 14 01:45:10 1999 Marc Espie <espie@cvs.openbsd.org>
* Makefile.in: Prepend $(SHELL) to move-if-change calls.

1
gcc/cp/call.c
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@ -4038,7 +4038,6 @@ build_over_call (cand, args, flags)
{
val = build_decl (VAR_DECL, NULL_TREE, DECL_CONTEXT (fn));
val = build_target_expr (val, arg);
TREE_SIDE_EFFECTS (val) = 1;
return val;
}
}

1
gcc/cp/cvt.c
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@ -365,7 +365,6 @@ build_up_reference (type, arg, flags)
tree slot = build_decl (VAR_DECL, NULL_TREE, argtype);
DECL_ARTIFICIAL (slot) = 1;
arg = build_target_expr (slot, arg);
TREE_SIDE_EFFECTS (arg) = 1;
}
/* If we had a way to wrap this up, and say, if we ever needed it's

13
gcc/cp/decl.c
View File

@ -14127,8 +14127,17 @@ build_target_expr (decl, value)
tree decl;
tree value;
{
return build (TARGET_EXPR, TREE_TYPE (decl), decl, value,
maybe_build_cleanup (decl), NULL_TREE);
tree t;
t = build (TARGET_EXPR, TREE_TYPE (decl), decl, value,
maybe_build_cleanup (decl), NULL_TREE);
/* We always set TREE_SIDE_EFFECTS so that expand_expr does not
ignore the TARGET_EXPR. If there really turn out to be no
side-effects, then the optimizer should be able to get rid of
whatever code is generated anyhow. */
TREE_SIDE_EFFECTS (t) = 1;
return t;
}
/* If DECL is of a type which needs a cleanup, build that cleanup

2
gcc/cp/tree.c
View File

@ -252,7 +252,6 @@ build_cplus_new (type, init)
&& TREE_CODE (TREE_OPERAND (fn, 0)) == FUNCTION_DECL
&& DECL_CONSTRUCTOR_P (TREE_OPERAND (fn, 0)));
rval = build_target_expr (slot, rval);
TREE_SIDE_EFFECTS (rval) = 1;
return rval;
}
@ -270,7 +269,6 @@ get_target_expr (init)
DECL_ARTIFICIAL (slot) = 1;
layout_decl (slot, 0);
rval = build_target_expr (slot, init);
TREE_SIDE_EFFECTS (rval) = 1;
return rval;
}