diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index c636bdc..991ad2e 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -3204,7 +3204,7 @@ simple_operand_p (exp) try to change a logical combination of comparisons into a range test. For example, both - X == 2 && X == 3 && X == 4 && X == 5 + X == 2 || X == 3 || X == 4 || X == 5 and X >= 2 && X <= 5 are converted to @@ -3299,7 +3299,7 @@ range_binop (code, type, arg0, upper0_p, arg1, upper1_p) /* Given EXP, a logical expression, set the range it is testing into variables denoted by PIN_P, PLOW, and PHIGH. Return the expression - actually being tested. *PLOW and *PHIGH will have be made the same type + actually being tested. *PLOW and *PHIGH will be made of the same type as the returned expression. If EXP is not a comparison, we will most likely not be returning a useful value and range. */ @@ -3894,7 +3894,7 @@ fold_truthop (code, truth_type, lhs, rhs) enum tree_code code; tree truth_type, lhs, rhs; { - /* If this is the "or" of two comparisons, we can do something if we + /* If this is the "or" of two comparisons, we can do something if the comparisons are NE_EXPR. If this is the "and", we can do something if the comparisons are EQ_EXPR. I.e., (a->b == 2 && a->c == 4) can become (a->new == NEW). |