[selectiondag] Check PromotedFloats map during expansive checks.

Summary:
`PromotedFloats` needs to be checked in 
`DAGTypeLegalizer::PerformExpensiveChecks`. This patch fixes a few type
legalization failures with expansive checks for ARM fp16 tests.

Reviewers: baldrick, bogner, arsenm

Subscribers: arsenm, aemerson, llvm-commits

Differential Revision: https://reviews.llvm.org/D28187

llvm-svn: 290796

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
index 84703425428..693f5e2120a 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
@@ -117,6 +117,8 @@ void DAGTypeLegalizer::PerformExpensiveChecks() {
         Mapped |= 64;
       if (WidenedVectors.find(Res) != WidenedVectors.end())
         Mapped |= 128;
+      if (PromotedFloats.find(Res) != PromotedFloats.end())
+        Mapped |= 256;
 
       if (Node.getNodeId() != Processed) {
         // Since we allow ReplacedValues to map deleted nodes, it may map nodes
@@ -159,6 +161,8 @@ void DAGTypeLegalizer::PerformExpensiveChecks() {
           dbgs() << " SplitVectors";
         if (Mapped & 128)
           dbgs() << " WidenedVectors";
+        if (Mapped & 256)
+          dbgs() << " PromotedFloats";
         dbgs() << "\n";
         llvm_unreachable(nullptr);
       }