http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48434
Summary: Large SpecCPUFP Performance Regression for Thumb-2
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: other
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: ibol...@gcc.gnu.org
Host: arm-linux-gnueabi
Target: arm-linux-gnueabi
Build: arm-linux-gnueabi
At least once a week, we measure SpecCPU2000 performance for Thumb-2 on a
Cortex-A9.
On Monday, all was well, but on Wednesday, there was a large performance
regression across the board on SpecFP (except for Mesa and Facerec). Overall
FP score has dropped by 25%.
Known good revision: r171422
Know bad revision: r171723
I am currently bisecting to find the problem commit.
