aboutsummaryrefslogtreecommitdiff
path: root/include/llvm/Analysis/DivergenceAnalysis.h
diff options
context:
space:
mode:
authorDimitry Andric <dim@FreeBSD.org>2019-10-23 17:51:42 +0000
committerDimitry Andric <dim@FreeBSD.org>2019-10-23 17:51:42 +0000
commit1d5ae1026e831016fc29fd927877c86af904481f (patch)
tree2cdfd12620fcfa5d9e4a0389f85368e8e36f63f9 /include/llvm/Analysis/DivergenceAnalysis.h
parente6d1592492a3a379186bfb02bd0f4eda0669c0d5 (diff)
Notes
Diffstat (limited to 'include/llvm/Analysis/DivergenceAnalysis.h')
-rw-r--r--include/llvm/Analysis/DivergenceAnalysis.h16
1 files changed, 13 insertions, 3 deletions
diff --git a/include/llvm/Analysis/DivergenceAnalysis.h b/include/llvm/Analysis/DivergenceAnalysis.h
index 3cfb9d13df94..2fac9c8b4b34 100644
--- a/include/llvm/Analysis/DivergenceAnalysis.h
+++ b/include/llvm/Analysis/DivergenceAnalysis.h
@@ -73,9 +73,12 @@ public:
/// operands
bool isAlwaysUniform(const Value &Val) const;
- /// \brief Whether \p Val is a divergent value
+ /// \brief Whether \p Val is divergent at its definition.
bool isDivergent(const Value &Val) const;
+ /// \brief Whether \p U is divergent. Uses of a uniform value can be divergent.
+ bool isDivergentUse(const Use &U) const;
+
void print(raw_ostream &OS, const Module *) const;
private:
@@ -189,12 +192,19 @@ public:
/// The GPU kernel this analysis result is for
const Function &getFunction() const { return DA.getFunction(); }
- /// Whether \p V is divergent.
+ /// Whether \p V is divergent at its definition.
bool isDivergent(const Value &V) const;
- /// Whether \p V is uniform/non-divergent
+ /// Whether \p U is divergent. Uses of a uniform value can be divergent.
+ bool isDivergentUse(const Use &U) const;
+
+ /// Whether \p V is uniform/non-divergent.
bool isUniform(const Value &V) const { return !isDivergent(V); }
+ /// Whether \p U is uniform/non-divergent. Uses of a uniform value can be
+ /// divergent.
+ bool isUniformUse(const Use &U) const { return !isDivergentUse(U); }
+
/// Print all divergent values in the kernel.
void print(raw_ostream &OS, const Module *) const;
};