When mixing -flto, -ffat-lto-objects and -fdebug-type-section we fail to reset all type units after early output resulting in an ICE when attempting to add then duplicate sibling attributes.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed. Richard. PR debug/112718 * dwarf2out.cc (dwarf2out_finish): Reset all type units for the fat part of an LTO compile. * gcc.dg/debug/pr112718.c: New testcase. --- gcc/dwarf2out.cc | 12 ------------ gcc/testsuite/gcc.dg/debug/pr112718.c | 12 ++++++++++++ 2 files changed, 12 insertions(+), 12 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/debug/pr112718.c diff --git a/gcc/dwarf2out.cc b/gcc/dwarf2out.cc index 1c994bb8b9b..0b8a3002292 100644 --- a/gcc/dwarf2out.cc +++ b/gcc/dwarf2out.cc @@ -32276,24 +32276,12 @@ dwarf2out_finish (const char *filename) reset_dies (comp_unit_die ()); for (limbo_die_node *node = cu_die_list; node; node = node->next) reset_dies (node->die); - - hash_table<comdat_type_hasher> comdat_type_table (100); for (ctnode = comdat_type_list; ctnode != NULL; ctnode = ctnode->next) { - comdat_type_node **slot - = comdat_type_table.find_slot (ctnode, INSERT); - - /* Don't reset types twice. */ - if (*slot != HTAB_EMPTY_ENTRY) - continue; - /* Remove the pointer to the line table. */ remove_AT (ctnode->root_die, DW_AT_stmt_list); - if (debug_info_level >= DINFO_LEVEL_TERSE) reset_dies (ctnode->root_die); - - *slot = ctnode; } /* Reset die CU symbol so we don't output it twice. */ diff --git a/gcc/testsuite/gcc.dg/debug/pr112718.c b/gcc/testsuite/gcc.dg/debug/pr112718.c new file mode 100644 index 00000000000..ff80ca5a298 --- /dev/null +++ b/gcc/testsuite/gcc.dg/debug/pr112718.c @@ -0,0 +1,12 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target lto } */ +/* { dg-options "-g -fdebug-types-section -flto -ffat-lto-objects" } */ + +struct { + int h; + unsigned char data[20 + 24 * 6]; +} _EC_X9_62_PRIME_192V2; +struct { + int h; + unsigned char data[20 + 24 * 6]; +} _EC_X9_62_PRIME_192V3; -- 2.35.3