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[consider merging] fixed a crash happening while blending two OASIS files with ghost cells

This commit is contained in:
Matthias Koefferlein 2025-06-28 15:50:27 +02:00
parent 5a401127a2
commit abeab280a3
3 changed files with 26 additions and 4 deletions
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5
src/db/db/dbCommonReader.cc
View File

@ -240,7 +240,7 @@ CommonReaderBase::cell_for_instance (db::Layout &layout, const std::string &cn)
}
void
CommonReaderBase::merge_cell (db::Layout &layout, db::cell_index_type target_cell_index, db::cell_index_type src_cell_index, bool with_meta, bool no_duplicate_instances) const
CommonReaderBase::merge_cell (db::Layout &layout, db::cell_index_type target_cell_index, db::cell_index_type src_cell_index, bool with_meta, bool no_duplicate_instances)
{
const db::Cell &src_cell = layout.cell (src_cell_index);
db::Cell &target_cell = layout.cell (target_cell_index);
@ -284,7 +284,7 @@ CommonReaderBase::merge_cell (db::Layout &layout, db::cell_index_type target_cel
}
void
CommonReaderBase::merge_cell_without_instances (db::Layout &layout, db::cell_index_type target_cell_index, db::cell_index_type src_cell_index, bool with_meta) const
CommonReaderBase::merge_cell_without_instances (db::Layout &layout, db::cell_index_type target_cell_index, db::cell_index_type src_cell_index, bool with_meta)
{
const db::Cell &src_cell = layout.cell (src_cell_index);
db::Cell &target_cell = layout.cell (target_cell_index);
@ -311,6 +311,7 @@ CommonReaderBase::merge_cell_without_instances (db::Layout &layout, db::cell_ind
// finally delete the new cell
layout.delete_cell (src_cell.cell_index ());
m_temp_cells.erase (src_cell.cell_index ());
}
void

4
src/db/db/dbCommonReader.h
View File

@ -242,12 +242,12 @@ protected:
/**
* @brief Merge (and delete) the src_cell into target_cell
*/
void merge_cell (db::Layout &layout, db::cell_index_type target_cell_index, db::cell_index_type src_cell_index, bool with_meta, bool no_duplicate_instances) const;
void merge_cell (db::Layout &layout, db::cell_index_type target_cell_index, db::cell_index_type src_cell_index, bool with_meta, bool no_duplicate_instances);
/**
* @brief Merge (and delete) the src_cell into target_cell without instances
*/
void merge_cell_without_instances (db::Layout &layout, db::cell_index_type target_cell_index, db::cell_index_type src_cell_index, bool with_meta) const;
void merge_cell_without_instances (db::Layout &layout, db::cell_index_type target_cell_index, db::cell_index_type src_cell_index, bool with_meta);
/**
* @brief Gets the layer name map

21
src/plugins/streamers/oasis/unit_tests/dbOASISReaderTests.cc
View File

@ -679,3 +679,24 @@ TEST(DuplicateCellname)
EXPECT_EQ (ex.msg ().find ("Same cell name TOP, but different IDs: 3 and 0 (position=1070, cell=)"), size_t (0));
}
}
TEST(BlendCrash)
{
db::Manager m (false);
db::Layout layout (&m);
{
tl::InputStream file (tl::testdata () + "/oasis/blend_crash1.oas");
db::OASISReader reader (file);
reader.read (layout);
}
{
tl::InputStream file (tl::testdata () + "/oasis/blend_crash2.oas");
db::OASISReader reader (file);
reader.read (layout);
}
std::string fn_au (tl::testdata () + "/oasis/blend_crash_au.gds.gz");
db::compare_layouts (_this, layout, fn_au, db::WriteGDS2, 1);
}