https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70681
Bug ID: 70681
Summary: [6 Regression] FAIL: gcc.dg/ira-shrinkwrap-prep-2.c
gcc.dg/pr10474.c on arm and powerpc
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: ktkachov at gcc dot gnu.org
Target Milestone: ---
Target: arm, powerpc
As reported at:
https://gcc.gnu.org/ml/gcc-patches/2016-03/msg01640.html
and
https://gcc.gnu.org/ml/gcc-patches/2016-04/msg00094.html
The tests:
gcc.dg/ira-shrinkwrap-prep-2.c scan-rtl-dump pro_and_epilogue
"Performing shrink-wrapping"
gcc.dg/pr10474.c scan-rtl-dump pro_and_epilogue "Performing shrink-wrapping"
Have started failing on arm and powerpc after a regalloc change.
On arm at least the resulting codegen doesn't look worse
(https://gcc.gnu.org/ml/gcc-patches/2016-04/msg00223.html)
but arguably shrink-wrapping could be improved
(https://gcc.gnu.org/ml/gcc-patches/2016-04/msg00265.html)
This is a report to track work on shrinkwrapping or adjustment of the
testscases
