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From-SVN: r9623
This commit is contained in:
Jason Merrill 1995-05-11 19:25:36 +00:00
parent f5acdcc178
commit 0982a4b872
1 changed files with 22 additions and 8 deletions
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30
gcc/fold-const.c
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@ -1741,7 +1741,8 @@ operand_equal_for_comparison_p (arg0, arg1, other)
if (operand_equal_p (arg0, arg1, 0))
return 1;
if (! INTEGRAL_TYPE_P (TREE_TYPE (arg0)))
if (! INTEGRAL_TYPE_P (TREE_TYPE (arg0))
|| ! INTEGRAL_TYPE_P (TREE_TYPE (arg1)))
return 0;
/* Duplicate what shorten_compare does to ARG1 and see if that gives the
@ -5053,16 +5054,29 @@ fold (expr)
tree arg00 = TREE_OPERAND (arg0, 0);
tree arg01;
if (kind0 == '1')
if (kind0 == '1' || code0 == TRUTH_NOT_EXPR)
return fold (build1 (code0, type,
fold (build1 (CLEANUP_POINT_EXPR,
TREE_TYPE (arg00), arg00))));
if ((kind0 == '<' || kind0 == '2')
&& ! TREE_SIDE_EFFECTS (arg01 = TREE_OPERAND (arg0, 1)))
return fold (build (code0, type,
fold (build1 (CLEANUP_POINT_EXPR,
TREE_TYPE (arg00), arg00)),
arg01));
if (kind0 == '<' || kind0 == '2'
|| code0 == TRUTH_ANDIF_EXPR || code0 == TRUTH_ORIF_EXPR
|| code0 == TRUTH_AND_EXPR || code0 == TRUTH_OR_EXPR
|| code0 == TRUTH_XOR_EXPR)
{
arg01 = TREE_OPERAND (arg0, 1);
if (! TREE_SIDE_EFFECTS (arg00))
return fold (build (code0, type, arg00,
fold (build1 (CLEANUP_POINT_EXPR,
TREE_TYPE (arg01), arg01))));
if (! TREE_SIDE_EFFECTS (arg01))
return fold (build (code0, type,
fold (build1 (CLEANUP_POINT_EXPR,
TREE_TYPE (arg00), arg00)),
arg01));
}
return t;
}