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Diffstat (limited to 'gcc/tree-ssa-copy.c')
| -rw-r--r-- | gcc/tree-ssa-copy.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/tree-ssa-copy.c b/gcc/tree-ssa-copy.c index d552c3a..8897275 100644 --- a/gcc/tree-ssa-copy.c +++ b/gcc/tree-ssa-copy.c @@ -191,7 +191,10 @@ propagate_value (use_operand_p op_p, tree val) Use this version when not const/copy propagating values. For example, PRE uses this version when building expressions as they would appear - in specific blocks taking into account actions of PHI nodes. */ + in specific blocks taking into account actions of PHI nodes. + + The statement in which an expression has been replaced should be + folded using fold_stmt_inplace. */ void replace_exp (use_operand_p op_p, tree val) |