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| author | Kugan Vivekanandarajah <kuganv@linaro.org> | 2018-06-16 21:39:31 +0000 |
|---|---|---|
| committer | Kugan Vivekanandarajah <kugan@gcc.gnu.org> | 2018-06-16 21:39:31 +0000 |
| commit | 5126ae0c6eafd2bba09fc60a23cd9c0b292846c4 (patch) | |
| tree | e7ade1440d60638b78b1ca38cf5a18a29153c582 /gcc/tree-ssa-loop-ivopts.c | |
| parent | e197e64ee8ab8e46de9069a8d951bed720a0fd67 (diff) | |
re PR middle-end/82479 (missing popcount builtin detection)
gcc/ChangeLog:
2018-06-16 Kugan Vivekanandarajah <kuganv@linaro.org>
PR middle-end/82479
* ipa-fnsummary.c (will_be_nonconstant_expr_predicate): Handle CALL_EXPR.
* tree-scalar-evolution.c (interpret_expr): Likewise.
(expression_expensive_p): Likewise.
* tree-ssa-loop-ivopts.c (contains_abnormal_ssa_name_p): Likewise.
* tree-ssa-loop-niter.c (number_of_iterations_popcount): New.
(number_of_iterations_exit_assumptions): Use number_of_iterations_popcount.
(ssa_defined_by_minus_one_stmt_p): New.
gcc/testsuite/ChangeLog:
2018-06-16 Kugan Vivekanandarajah <kuganv@linaro.org>
PR middle-end/82479
* gcc.dg/tree-ssa/popcount.c: New test.
* gcc.dg/tree-ssa/popcount2.c: New test.
From-SVN: r261682
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index b3135717f22..519649a3a97 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -985,6 +985,16 @@ contains_abnormal_ssa_name_p (tree expr) code = TREE_CODE (expr); codeclass = TREE_CODE_CLASS (code); + if (code == CALL_EXPR) + { + tree arg; + call_expr_arg_iterator iter; + FOR_EACH_CALL_EXPR_ARG (arg, iter, expr) + if (contains_abnormal_ssa_name_p (arg)) + return true; + return false; + } + if (code == SSA_NAME) return SSA_NAME_OCCURS_IN_ABNORMAL_PHI (expr) != 0; |