Commit Graph

5 Commits

Author SHA1 Message Date
Tony 2f499b9aff [AMDGPU] Add volatile support to SIMemoryLegalizer
Treat a non-atomic volatile load and store as a relaxed atomic at
system scope for the address spaces accessed. This will ensure all
relevant caches will be bypassed.

A volatile atomic is not changed and still only bypasses caches upto
the level specified by the SyncScope operand.

Differential Revision: https://reviews.llvm.org/D94214
2021-01-09 00:52:33 +00:00
Jay Foad d28624a209 [AMDGPU] Stop adding an implicit def of vcc_hi for wave32
This doesn't seem to be needed for anything.

Differential Revision: https://reviews.llvm.org/D92400
2020-12-02 10:11:42 +00:00
Sebastian Neubauer 833b3b0d3a [AMDGPU] Add v3f16/v3i16 support to SDag
Fix lowering and instruction selection for v3x16 types
and enable InstCombine to emit them.

This patch only implements it for the selection dag.
GlobalISel tests in GlobalISel/llvm.amdgcn.image.load.1d.d16.ll and
GlobalISel/llvm.amdgcn.image.store.2d.d16.ll still don't work.

Differential Revision: https://reviews.llvm.org/D84420
2020-09-16 17:20:27 +02:00
Jay Foad 590964c835 [AMDGPU] More accurate gfx10 latencies
Differential Revision: https://reviews.llvm.org/D81012
2020-06-04 10:29:32 +01:00
Matt Arsenault 9c928649a0 AMDGPU: Fix interaction of tfe and d16
This using the wrong result register, and dropping the result entirely
for v2f16. This would fail to select on the scalar case. I believe it
was also mishandling packed/unpacked subtargets.
2020-01-22 09:26:17 -05:00