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* stmt.c (warn_if_unused_value): Move side effects test earlier. 

From-SVN: r38030
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Richard Henderson 2000-12-05 00:16:15 -08:00 committed by Richard Henderson
parent 7d3615831e
commit eca93b0599
2 changed files with 8 additions and 4 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2000-12-05 Richard Henderson <rth@redhat.com>
* stmt.c (warn_if_unused_value): Move side effects test earlier.
2000-12-05 Alan Modra <alan@linuxcare.com.au>
* bb-reorder.c (reorder_basic_blocks): Do check for EH edges even

8
gcc/stmt.c
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@ -1983,6 +1983,10 @@ warn_if_unused_value (exp)
if (VOID_TYPE_P (TREE_TYPE (exp)))
return 0;
/* If this is an expression with side effects, don't warn. */
if (TREE_SIDE_EFFECTS (exp))
return 0;
switch (TREE_CODE (exp))
{
case PREINCREMENT_EXPR:
@ -2058,10 +2062,6 @@ warn_if_unused_value (exp)
&& TREE_THIS_VOLATILE (exp))
return 0;
/* If this is an expression with side effects, don't warn. */
if (TREE_SIDE_EFFECTS (exp))
return 0;
/* If this is an expression which has no operands, there is no value
to be unused. There are no such language-independent codes,
but front ends may define such. */