Fixes a longstanding TODO in the codebase where we were using S_GETREG + shift to do something that could simply be done with an inline constant (register).
Patch based on D31874 by @kzhuravl
Depends on D137767
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D137542
global/scratch_load will return in order they are issued. No
need to insert a s_waitcnt for WAW hazard.
Reviewed By: foad
Differential Revision: https://reviews.llvm.org/D138476
This patch contains changes necessary to carry physical condition register (SCC) dependencies through the SDNode scheduler. It adds the edge in the SDNodeScheduler dependency graph instead of inserting the SCC copy between each definition and use. This approach lets the scheduler place instructions in an optimal way placing the copy only when the dependency cannot be resolved.
Reviewed By: rampitec
Differential Revision: https://reviews.llvm.org/D133593
Summary:
Specifically, for trap handling, for targets that do not support getDoorbellID,
we load the queue_ptr from the implicit kernarg, and move queue_ptr to s[0:1].
To get aperture bases when targets do not have aperture registers, we load
private_base or shared_base directly from the implicit kernarg. In clang, we use
implicitarg_ptr + offsets to implement __builtin_amdgcn_workgroup_size_{xyz}.
Reviewers: arsenm, sameerds, yaxunl
Differential Revision: https://reviews.llvm.org/D120265
