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| author | Jakub Jelinek <jakub@redhat.com> | 2022-04-21 09:43:30 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2022-04-21 09:43:30 +0200 |
| commit | 504b02c70abcc31e0e9b56e69f82f85b5261bca9 (patch) | |
| tree | 2231105e2c415dc2393522bbe10f06c1045f0b22 /gcc/d | |
| parent | 6a4e9934545c112eef5eb7248636baa96cbfd2c0 (diff) | |
| download | gcc-504b02c70abcc31e0e9b56e69f82f85b5261bca9.zip gcc-504b02c70abcc31e0e9b56e69f82f85b5261bca9.tar.gz gcc-504b02c70abcc31e0e9b56e69f82f85b5261bca9.tar.bz2 | |
emit-rtl: Fix -fcompare-debug bug with label references in debug insns [PR105203]
When we compute LABEL_NUSES from scratch, mark_all_labels doesn't call
mark_jump_label on DEBUG_INSNs:
if (NONDEBUG_INSN_P (insn))
mark_jump_label (PATTERN (insn), insn, 0);
and so doesn't increment LABEL_NUSES from references in DEBUG_INSNs.
But, when we call emit_copy_of_insn_after e.g. when duplicating some
DEBUG_INSNs, we call it even on those, which then results in LABEL_NUSES
differences and -fcompare-debug failures.
The following patch makes sure we don't call it on DEBUG_INSNs.
2022-04-21 Jakub Jelinek <jakub@redhat.com>
PR debug/105203
* emit-rtl.cc (emit_copy_of_insn_after): Don't call mark_jump_label
on DEBUG_INSNs.
* gfortran.dg/g77/pr105203.f: New test.
Diffstat (limited to 'gcc/d')
0 files changed, 0 insertions, 0 deletions