Dead code elimination may separate the live interval into multiple connected components.
I have convinced myself that it can only happen when a phi value dies. When it
happens, allocate new virtual registers for the components.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127827 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/InlineSpiller.cpp b/lib/CodeGen/InlineSpiller.cpp
index ff0a105..ecb0088 100644
--- a/lib/CodeGen/InlineSpiller.cpp
+++ b/lib/CodeGen/InlineSpiller.cpp
@@ -460,7 +460,7 @@
}
// Alocate a new register for the remat.
- LiveInterval &NewLI = Edit->create(MRI, LIS, VRM);
+ LiveInterval &NewLI = Edit->create(LIS, VRM);
NewLI.markNotSpillable();
// Rematting for a copy: Set allocation hint to be the destination register.
@@ -685,7 +685,7 @@
// Allocate interval around instruction.
// FIXME: Infer regclass from instruction alone.
- LiveInterval &NewLI = Edit->create(MRI, LIS, VRM);
+ LiveInterval &NewLI = Edit->create(LIS, VRM);
NewLI.markNotSpillable();
if (Reads)