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[Bug target/71061] New: [ARM] is not setting instruction length for pop* patterns
- From: "jiwang at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 11 May 2016 11:49:55 +0000
- Subject: [Bug target/71061] New: [ARM] is not setting instruction length for pop* patterns
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71061
Bug ID: 71061
Summary: [ARM] is not setting instruction length for pop*
patterns
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: minor
Priority: P3
Component: target
Assignee: jiwang at gcc dot gnu.org
Reporter: jiwang at gcc dot gnu.org
Target Milestone: ---
Target: arm*
This is causing wrong size calculation and may affect some rtl pass, for
example bb-order where copy_bb_p needs accurate insn length info.
This have eventually part of the reason for
https://gcc.gnu.org/ml/gcc-patches/2016-05/msg00639.html where bb-order failed
to do the bb copy.
For the fix, I think we should extend arm_attr_length_push_multi to pop*
pattern.