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| author | Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com> | 2016-11-15 18:58:03 +0000 |
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| committer | Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com> | 2016-11-15 18:58:03 +0000 |
| commit | cd433d28118b345ba367420cbed1acd8fb1e4ea3 (patch) | |
| tree | a7afd7892452f19f469b01ea5941faf4d60d382b /llvm/lib | |
| parent | 8013e81defde4bef3b3df32b0b477be122e4e90d (diff) | |
| download | bcm5719-llvm-cd433d28118b345ba367420cbed1acd8fb1e4ea3.tar.gz bcm5719-llvm-cd433d28118b345ba367420cbed1acd8fb1e4ea3.zip | |
[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/D26584
llvm-svn: 287006
Diffstat (limited to 'llvm/lib')
0 files changed, 0 insertions, 0 deletions
