[OPENMP]Add support for analysis of linear variables and step.
Summary:
Added support for basic analysis of the linear variables and linear step
expression. Linear loop iteration variables must be excluded from this
analysis, only non-loop iteration variables must be analyzed.
Reviewers: NoQ
Subscribers: guansong, cfe-commits, caomhin, kkwli0
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65461
llvm-svn: 368295
diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index 4ac8746..49c7c3a 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -12724,6 +12724,7 @@
// Walk the vars and build update/final expressions for the CodeGen.
SmallVector<Expr *, 8> Updates;
SmallVector<Expr *, 8> Finals;
+ SmallVector<Expr *, 8> UsedExprs;
Expr *Step = Clause.getStep();
Expr *CalcStep = Clause.getCalcStep();
// OpenMP [2.14.3.7, linear clause]
@@ -12799,16 +12800,24 @@
if (!Update.isUsable() || !Final.isUsable()) {
Updates.push_back(nullptr);
Finals.push_back(nullptr);
+ UsedExprs.push_back(nullptr);
HasErrors = true;
} else {
Updates.push_back(Update.get());
Finals.push_back(Final.get());
+ if (!Info.first)
+ UsedExprs.push_back(SimpleRefExpr);
}
++CurInit;
++CurPrivate;
}
+ if (Expr *S = Clause.getStep())
+ UsedExprs.push_back(S);
+ // Fill the remaining part with the nullptr.
+ UsedExprs.append(Clause.varlist_size() + 1 - UsedExprs.size(), nullptr);
Clause.setUpdates(Updates);
Clause.setFinals(Finals);
+ Clause.setUsedExprs(UsedExprs);
return HasErrors;
}