Improvements around IR representation and memory usage (#635)

* * Remove dispose from IRInst
* Use MemoryArena instead of MemoryPool
* Make all IRInst not require Dtor - by having ref counted array store ptrs that need freeing

* Increase block size - typically compilation is 2Mb of IR space(!)

* Fix issues around StringRepresentation::equal because null has special meaning.

* Don't bother to construct as String to compare StringRepresentation, just used UnownedStringSlice.

* Added fromLiteral support to UnownedStringSlice and use instead of strlen version.

* Use more conventional way to test StringRepresentation against a String.

* Fix gcc/clang template problem with cast.

1 files changed, 0 insertions, 19 deletions

diff --git a/source/slang/memory_pool.h b/source/slang/memory_pool.h
deleted file mode 100644
index ee3ee1aa3..000000000
--- a/source/slang/memory_pool.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef SLANG_MEMORY_POOL_H
-#define SLANG_MEMORY_POOL_H
-
-#include "../core/basic.h"
-
-namespace Slang
-{
-    struct MemoryPoolSegment;
-
-    struct MemoryPool : public RefObject
-    {
-        MemoryPoolSegment* curSegment = nullptr;
-        ~MemoryPool();
-        void* alloc(size_t size);
-        void* allocZero(size_t size);
-    };
-}
-
-#endif
\ No newline at end of file