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3 Commits

Author SHA1 Message Date
Oliver Stannard 852fbd2fea [ARM] Add scheduling classes for VFNM[AS] 
The VFNM[AS] instructions did not have scheduling information attached, which
was causing assertion failures with the Cortex-A57 scheduling model and
-fp-contract=fast, because the Cortex-A57 sched model claims to be complete.

Differential Revision: https://reviews.llvm.org/D34139

llvm-svn: 305288
 2017-06-13 13:04:32 +00:00
Oliver Stannard ad0973557c [ARM] Add scheduling info for VFMS 
The scalar VFMS instructions did not have scheduling information attached (but
VFMA did), which was causing assertion failures with the Cortex-A57 scheduling
model and -fp-contract=fast.

Differential Revision: https://reviews.llvm.org/D34040

llvm-svn: 305064
 2017-06-09 09:19:09 +00:00
Javed Absar 4ae7e81233 [ARM] Cortex-A57 scheduling model for ARM backend (AArch32) 
This patch implements the Cortex-A57 scheduling model.
The main code is in ARMScheduleA57.td, ARMScheduleA57WriteRes.td.
Small changes in cpp,.h files to support required scheduling predicates.

Scheduling model implemented according to:
 http://infocenter.arm.com/help/topic/com.arm.doc.uan0015b/Cortex_A57_Software_Optimization_Guide_external.pdf.

Patch by : Andrew Zhogin (submitted on his behalf, as requested).
Rewiewed by: Renato Golin, Diana Picus, Javed Absar, Kristof Beyls.
Differential Revision: https://reviews.llvm.org/D28152

llvm-svn: 304530
 2017-06-02 08:53:19 +00:00