https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83500
Bug ID: 83500
Summary: gcc.dg/tree-prof/switch-case-1.c fails on aarch64
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: sje at gcc dot gnu.org
Target Milestone: ---
This test started failing on aarch64-linux-gnu with this checkin:
commit b33f4eb038b5c30bf57de6bb10f40e11481c6be6
Author: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sat Oct 7 16:33:26 2017 +0000
* tree-switch-conversion.c (do_jump_if_equal, emit_cmp_and_jump_insns):
Update profile.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@253512
138bc75d-0d04-0410-96
1f-82ee72b054a4
Before the change I see these lines in the expand file:
% grep 'basic block.* count 4000' *expand
;; basic block 17, loop depth 0, count 4000, freq 4000, maybe hot
;; basic block 18, loop depth 0, count 4000, freq 4000, maybe hot
% grep 'basic block.* count 2000' *expand
;; basic block 23, loop depth 0, count 2000, freq 2000, maybe hot
After the change I see these lines in the expand file:
% grep 'basic block.* count 4000' *expand
;; basic block 17, loop depth 0, count 4000, freq 4000, maybe hot
;; basic block 18, loop depth 0, count 4000, freq 4000, maybe hot
% grep 'basic block.* count 2000' *expand
;; basic block 8, loop depth 0, count 2000 (adjusted), freq 2000, maybe hot
;; basic block 23, loop depth 0, count 2000, freq 2000, maybe hot
Having two lines with 'count 2000' is causing the test failure, I do
not know if the test needs to be changed or if this is indicating an
actual problem in the compiler.
