llvm-project

Commit Graph

Author	SHA1	Message	Date
Matt Arsenault	e9ad7e9a71	AMDGPU: wave_barrier is not isBarrier This is not a control flow instruction, so should not be marked as isBarrier. This fixes a verifier error if followed by unreachable. llvm-svn: 357081	2019-03-27 15:54:45 +00:00
Matt Arsenault	3dbeefa978	AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel. Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel). llvm-svn: 298444	2017-03-21 21:39:51 +00:00
Stanislav Mekhanoshin	ea91cca593	[AMDGPU] Add wave barrier builtin The wave barrier represents the discardable barrier. Its main purpose is to carry convergent attribute, thus preventing illegal CFG optimizations. All lanes in a wave come to convergence point simultaneously with SIMT, thus no special instruction is needed in the ISA. The barrier is discarded during code generation. Differential Revision: https://reviews.llvm.org/D26585 llvm-svn: 287007	2016-11-15 19:00:15 +00:00

Author

SHA1

Message

Date

Matt Arsenault

e9ad7e9a71

AMDGPU: wave_barrier is not isBarrier

This is not a control flow instruction, so should not be marked as
isBarrier. This fixes a verifier error if followed by unreachable.

llvm-svn: 357081

2019-03-27 15:54:45 +00:00

Matt Arsenault

3dbeefa978

AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel

Currently the default C calling convention functions are treated
the same as compute kernels. Make this explicit so the default
calling convention can be changed to a non-kernel.

Converted with perl -pi -e 's/define void/define amdgpu_kernel void/'
on the relevant test directories (and undoing in one place that actually
wanted a non-kernel).

llvm-svn: 298444

2017-03-21 21:39:51 +00:00

Stanislav Mekhanoshin

ea91cca593

[AMDGPU] Add wave barrier builtin

The wave barrier represents the discardable barrier. Its main purpose is to
carry convergent attribute, thus preventing illegal CFG optimizations. All lanes
in a wave come to convergence point simultaneously with SIMT, thus no special
instruction is needed in the ISA. The barrier is discarded during code generation.

Differential Revision: https://reviews.llvm.org/D26585

llvm-svn: 287007

2016-11-15 19:00:15 +00:00

3 Commits