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* [gcc r13-2786] Fix calc_op1 for undefined op2_range.
@ 2022-09-22 18:49 Andrew Macleod
0 siblings, 0 replies; only message in thread
From: Andrew Macleod @ 2022-09-22 18:49 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:a7a6649f4e7c459a95dee1600554ad06aaeb1cf6
commit r13-2786-ga7a6649f4e7c459a95dee1600554ad06aaeb1cf6
Author: Andrew MacLeod <amacleod@redhat.com>
Date: Thu Sep 22 10:27:17 2022 -0400
Fix calc_op1 for undefined op2_range.
Unary operations pass the type of operand 1 into op1_range. If that
range is undefined, the routine blindly picks the type of operand 2,
which in the case of a unary op, does not exist and traps.
* gimple-range-op.cc (gimple_range_op_handler::calc_op1): Use
operand 1 for second range if there is no operand 2.
Diff:
---
gcc/gimple-range-op.cc | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/gcc/gimple-range-op.cc b/gcc/gimple-range-op.cc
index f03125a0fc5..ab5b389449d 100644
--- a/gcc/gimple-range-op.cc
+++ b/gcc/gimple-range-op.cc
@@ -208,10 +208,14 @@ gimple_range_op_handler::calc_op1 (vrange &r, const vrange &lhs_range,
// If op2 is undefined, solve as if it is varying.
if (op2_range.undefined_p ())
{
- // This is sometimes invoked on single operand stmts.
if (gimple_num_ops (m_stmt) < 3)
return false;
- tree op2_type = TREE_TYPE (operand2 ());
+ tree op2_type;
+ // This is sometimes invoked on single operand stmts.
+ if (operand2 ())
+ op2_type = TREE_TYPE (operand2 ());
+ else
+ op2_type = TREE_TYPE (operand1 ());
Value_Range trange (op2_type);
trange.set_varying (op2_type);
return op1_range (r, type, lhs_range, trange);
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