Force the greedy register allocator to be linked alongside linear scan.
This means that the new register allocator can be used with 'clang -mllvm -regalloc=greedy'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129764 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp
index 3489db2..c622275 100644
--- a/lib/CodeGen/Passes.cpp
+++ b/lib/CodeGen/Passes.cpp
@@ -55,6 +55,11 @@
RegisterRegAlloc::setDefault(RegAlloc);
}
+ // This forces linking of the greedy register allocator, so -regalloc=greedy
+ // works in clang.
+ if (Ctor == createGreedyRegisterAllocator)
+ return createGreedyRegisterAllocator();
+
if (Ctor != createDefaultRegisterAllocator)
return Ctor();