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| author | Kazu Hirata <kazu@cs.umass.edu> | 2004-09-18 19:47:10 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2004-09-18 19:47:10 +0000 |
| commit | 454ff5cbf0544db194bc0b1a87902f913ab93faa (patch) | |
| tree | 415e77fa8943b51c9cb97549ca6147abb08d118f /gcc/tree-ssa-dom.c | |
| parent | 112cdef5e66fccce5475fabb5317805e012dc212 (diff) | |
| download | gcc-454ff5cbf0544db194bc0b1a87902f913ab93faa.zip gcc-454ff5cbf0544db194bc0b1a87902f913ab93faa.tar.gz gcc-454ff5cbf0544db194bc0b1a87902f913ab93faa.tar.bz2 | |
alias.c, [...]: Fix comment typos.
* alias.c, crtstuff.c, dbxout.c, domwalk.c, domwalk.h, gcc.c,
gcse.c, global.c, lambda-code.c, loop.c, mips-tdump.c,
optabs.h, predict.c, reg-stack.c, regclass.c, sched-rgn.c,
tree-optimize.c, tree-ssa-dom.c, tree-ssa-forwprop.c,
tree-ssa-operands.c, tree-ssa-phiopt.c,
tree-ssa-threadupdate.c: Fix comment typos.
From-SVN: r87707
Diffstat (limited to 'gcc/tree-ssa-dom.c')
| -rw-r--r-- | gcc/tree-ssa-dom.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index 1953dfb..daf46ea 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -170,7 +170,7 @@ struct opt_stats_d optimizations are not performed. Note carefully we do not propagate information through each statement - in the block. ie, if we know variable X has a value defined of + in the block. i.e., if we know variable X has a value defined of [0, 25] and we encounter Y = X + 1, we do not track a value range for Y (which would be [1, 26] if we cared). Similarly we do not constrain values as we encounter narrowing typecasts, etc. */ @@ -1988,7 +1988,7 @@ simplify_cond_and_lookup_avail_expr (tree stmt, /* We really want to avoid unnecessary computations of range info. So all ranges are computed lazily; this avoids a - lot of unnecessary work. ie, we record the conditional, + lot of unnecessary work. i.e., we record the conditional, but do not process how it constrains the variable's potential values until we know that processing the condition could be helpful. @@ -3095,7 +3095,7 @@ get_eq_expr_value (tree if_stmt, tree op1 = TREE_OPERAND (cond, 1); /* Special case comparing booleans against a constant as we know - the value of OP0 on both arms of the branch. ie, we can record + the value of OP0 on both arms of the branch. i.e., we can record an equivalence for OP0 rather than COND. */ if ((TREE_CODE (cond) == EQ_EXPR || TREE_CODE (cond) == NE_EXPR) && TREE_CODE (op0) == SSA_NAME |