Fixed a bug that edge weights are not assigned correctly when lowering switch statement.
This is a one-line-change patch that moves the update to UnhandledWeights to the correct position: it should be updated for all clusters instead of just range clusters.
Differential Revision: http://reviews.llvm.org/D12391
llvm-svn: 246129
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 9ccd626..48811bd 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -8033,6 +8033,7 @@
// Put Cond in a virtual register to make it available from the new blocks.
ExportFromCurrentBlock(Cond);
}
+ UnhandledWeights -= I->Weight;
switch (I->Kind) {
case CC_JumpTable: {
@@ -8103,7 +8104,6 @@
}
// The false weight is the sum of all unhandled cases.
- UnhandledWeights -= I->Weight;
CaseBlock CB(CC, LHS, RHS, MHS, I->MBB, Fallthrough, CurMBB, I->Weight,
UnhandledWeights);