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Commit e8cc395e authored by Jan Vesely's avatar Jan Vesely
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AMDGPU/GCN: Exit early in hazard recognizer if there is no vreg argument 

wbinvl.* are vector instruction that do not sue vector registers.

v2: check only M?BUF instructions

Differential Revision: https://reviews.llvm.org/D26633

llvm-svn: 287056
parent e6f6d4c2
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