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| author | Marek Polacek <polacek@redhat.com> | 2024-08-29 10:40:50 -0400 |
|---|---|---|
| committer | Marek Polacek <polacek@redhat.com> | 2024-09-17 16:59:09 -0400 |
| commit | 7ca486889b1b1c7e7bcbbca3b6caa103294ec07d (patch) | |
| tree | 04bd06fd4b9c5d2e48c18c82751caa0383dbac6c /gcc/tree-ssa-phiopt.cc | |
| parent | dfe0d4389a3ce43179563a63046ad3e74d615a08 (diff) | |
| download | gcc-7ca486889b1b1c7e7bcbbca3b6caa103294ec07d.zip gcc-7ca486889b1b1c7e7bcbbca3b6caa103294ec07d.tar.gz gcc-7ca486889b1b1c7e7bcbbca3b6caa103294ec07d.tar.bz2 | |
c++: ICE with -Wtautological-compare in template [PR116534]
Pre r14-4793, we'd call warn_tautological_cmp -> operand_equal_p
with operands wrapped in NON_DEPENDENT_EXPR, which works, since
o_e_p bails for codes it doesn't know. But now we pass operands
not encapsulated in NON_DEPENDENT_EXPR, and crash, because the
template tree for &a[x] has null DECL_FIELD_OFFSET.
This patch extends r12-7797 to cover the case when DECL_FIELD_OFFSET
is null.
PR c++/116534
gcc/ChangeLog:
* fold-const.cc (operand_compare::operand_equal_p): If either
field's DECL_FIELD_OFFSET is null, compare the fields with ==.
gcc/testsuite/ChangeLog:
* g++.dg/warn/Wtautological-compare4.C: New test.
Reviewed-by: Jason Merrill <jason@redhat.com>
Diffstat (limited to 'gcc/tree-ssa-phiopt.cc')
0 files changed, 0 insertions, 0 deletions