Pass Divergence Analysis data to Selection DAG to drive divergence
dependent instruction selection.
Differential revision: https://reviews.llvm.org/D35267
llvm-svn: 326703
diff --git a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
index 81347fa..c0abfdb 100644
--- a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
@@ -547,3 +547,13 @@
}
return std::make_pair(It->second, false);
}
+
+const Value *
+FunctionLoweringInfo::getValueFromVirtualReg(unsigned Vreg) {
+ if (VirtReg2Value.empty()) {
+ for (auto &P : ValueMap) {
+ VirtReg2Value[P.second] = P.first;
+ }
+ }
+ return VirtReg2Value[Vreg];
+}