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3 Commits

Author SHA1 Message Date
Nicolai Haehnle 74127fe8d7 AMDGPU: mark llvm.amdgcn.image.atomic.* as a source of divergence 
Summary:
When multiple threads perform an atomic op with the same arguments, they
will usually see different return values.

Reviewers: arsenm, tstellarAMD

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D18101

llvm-svn: 263440
 2016-03-14 15:37:18 +00:00
Matt Arsenault fe26def35c AMDGPU: Fix not handling new workitem intrinsics in DivergenceAnalysis 
llvm-svn: 260491
 2016-02-11 05:32:51 +00:00
Tom Stellard ffc1a5aef7 AMDGPU/SI: Fix implemenation of isSourceOfDivergence() for graphics shaders 
Summary:
The analysis of shader inputs was completely wrong.  We were passing the
wrong index to AttributeSet::hasAttribute() and the logic for which
inputs where in SGPRs was wrong too.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D15608

llvm-svn: 256082
 2015-12-19 02:54:15 +00:00