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* [gcc r12-5688] Also pre-process PHIs in range-of-stmt.
@ 2021-12-01 14:15 Andrew Macleod
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From: Andrew Macleod @ 2021-12-01 14:15 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:cb137e85720654e41db370d952df226654e576a6
commit r12-5688-gcb137e85720654e41db370d952df226654e576a6
Author: Andrew MacLeod <amacleod@redhat.com>
Date: Mon Nov 29 12:00:26 2021 -0500
Also pre-process PHIs in range-of-stmt.
PR tree-optimization/103464
* gimple-range.cc (gimple_ranger::prefill_name): Process phis also.
(gimple_ranger::prefill_stmt_dependencies): Ditto.
Diff:
---
gcc/gimple-range.cc | 29 +++++++++++++++++++----------
1 file changed, 19 insertions(+), 10 deletions(-)
diff --git a/gcc/gimple-range.cc b/gcc/gimple-range.cc
index 178a470a419..c8431a7180b 100644
--- a/gcc/gimple-range.cc
+++ b/gcc/gimple-range.cc
@@ -333,7 +333,7 @@ gimple_ranger::prefill_name (irange &r, tree name)
if (!gimple_range_ssa_p (name))
return;
gimple *stmt = SSA_NAME_DEF_STMT (name);
- if (!gimple_range_handler (stmt))
+ if (!gimple_range_handler (stmt) && !is_a<gphi *> (stmt))
return;
bool current;
@@ -356,8 +356,8 @@ gimple_ranger::prefill_stmt_dependencies (tree ssa)
gimple *stmt = SSA_NAME_DEF_STMT (ssa);
gcc_checking_assert (stmt && gimple_bb (stmt));
- // Only pre-process range-ops.
- if (!gimple_range_handler (stmt))
+ // Only pre-process range-ops and phis.
+ if (!gimple_range_handler (stmt) && !is_a<gphi *> (stmt))
return;
// Mark where on the stack we are starting.
@@ -401,13 +401,22 @@ gimple_ranger::prefill_stmt_dependencies (tree ssa)
print_gimple_stmt (dump_file, stmt, 0, TDF_SLIM);
}
- gcc_checking_assert (gimple_range_handler (stmt));
- tree op = gimple_range_operand2 (stmt);
- if (op)
- prefill_name (r, op);
- op = gimple_range_operand1 (stmt);
- if (op)
- prefill_name (r, op);
+ gphi *phi = dyn_cast <gphi *> (stmt);
+ if (phi)
+ {
+ for (unsigned x = 0; x < gimple_phi_num_args (phi); x++)
+ prefill_name (r, gimple_phi_arg_def (phi, x));
+ }
+ else
+ {
+ gcc_checking_assert (gimple_range_handler (stmt));
+ tree op = gimple_range_operand2 (stmt);
+ if (op)
+ prefill_name (r, op);
+ op = gimple_range_operand1 (stmt);
+ if (op)
+ prefill_name (r, op);
+ }
}
if (idx)
tracer.trailer (idx, "ROS ", false, ssa, r);
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