Add a linear scan register allocator to the optimizing compiler.
This is a "by-the-book" implementation. It currently only deals
with allocating registers, with no hint optimizations.
The changes remaining to make it functional are:
- Allocate spill slots.
- Resolution and placements of Move instructions.
- Connect it to the code generator.
Change-Id: Ie0b2f6ba1b98da85425be721ce4afecd6b4012a4
diff --git a/compiler/utils/arena_allocator.h b/compiler/utils/arena_allocator.h
index 032eabc..dbe482d 100644
--- a/compiler/utils/arena_allocator.h
+++ b/compiler/utils/arena_allocator.h
@@ -170,6 +170,10 @@
return ret;
}
+ template <typename T> T* AllocArray(size_t length) {
+ return static_cast<T*>(Alloc(length * sizeof(T), kArenaAllocMisc));
+ }
+
void* AllocValgrind(size_t bytes, ArenaAllocKind kind);
void ObtainNewArenaForAllocation(size_t allocation_size);
size_t BytesAllocated() const;