Add a new optimization pass: Stack Coloring, that merges disjoint static allocations (allocas). Allocas are known to be
disjoint if they are marked by disjoint lifetime markers (@llvm.lifetime.XXX intrinsics).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163299 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/CodeGen/Passes.h b/include/llvm/CodeGen/Passes.h
index 07b3b45..7bd5764 100644
--- a/include/llvm/CodeGen/Passes.h
+++ b/include/llvm/CodeGen/Passes.h
@@ -404,6 +404,10 @@
/// inserting cmov instructions.
extern char &EarlyIfConverterID;
+ /// StackSlotColoring - This pass performs stack coloring and merging.
+ /// It merges disjoint allocas to reduce the stack size.
+ extern char &StackColoringID;
+
/// IfConverter - This pass performs machine code if conversion.
extern char &IfConverterID;