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4 Commits

Author SHA1 Message Date
Luis Marques 3d0fbafd0b [RISCV] Switch to the Machine Scheduler 
Most of the test changes are trivial instruction reorderings and differing
register allocations, without any obvious performance impact.

Differential Revision: https://reviews.llvm.org/D66973

llvm-svn: 372106
 2019-09-17 11:15:35 +00:00
Luis Marques 2d550d19b3 Revert Patch from Phabricator 
This reverts r372092 (git commit e38695a025)

llvm-svn: 372104
 2019-09-17 10:52:09 +00:00
Luis Marques e38695a025 Patch from Phabricator 
llvm-svn: 372092
 2019-09-17 09:43:08 +00:00
Luis Marques 2e46312ffd [DAGCombiner] [CodeGenPrepare] More comprehensive GEP splitting 
Some GEPs were not being split, presumably because that split would just be 
undone by the DAGCombiner. Not performing those splits can prevent important 
optimizations, such as preventing the element indices / member offsets from 
being (partially) folded into load/store instruction immediates. This patch:

- Makes the splits also occur in the cases where the base address and the GEP 
  are in the same BB.
- Ensures that the DAGCombiner doesn't reassociate them back again.

Differential Revision: https://reviews.llvm.org/D60294

llvm-svn: 363544
 2019-06-17 10:54:12 +00:00