Chris Lattner a106725fc5 Land the long talked about "type system rewrite" patch. This ... patch brings numerous advantages to LLVM. One way to look at it is through diffstat: 109 files changed, 3005 insertions(+), 5906 deletions(-) Removing almost 3K lines of code is a good thing. Other advantages include: 1. Value::getType() is a simple load that can be CSE'd, not a mutating union-find operation. 2. Types a uniqued and never move once created, defining away PATypeHolder. 3. Structs can be "named" now, and their name is part of the identity that uniques them. This means that the compiler doesn't merge them structurally which makes the IR much less confusing. 4. Now that there is no way to get a cycle in a type graph without a named struct type, "upreferences" go away. 5. Type refinement is completely gone, which should make LTO much MUCH faster in some common cases with C++ code. 6. Types are now generally immutable, so we can use "Type *" instead "const Type *" everywhere. Downsides of this patch are that it removes some functions from the C API, so people using those will have to upgrade to (not yet added) new API. "LLVM 3.0" is the right time to do this. There are still some cleanups pending after this, this patch is large enough as-is. llvm-svn: 134829		2011-07-09 17:41:24 +00:00
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Hello	Since the Hello pass is built as a loadable dynamic library, don't try to convert it to new-style registration yet.	2010-10-07 00:31:16 +00:00
InstCombine	Reapply a fixed version of r133285.	2011-07-08 22:09:33 +00:00
Instrumentation	Replace the existing forms of ConstantArray::get() with a single form	2011-06-22 09:24:39 +00:00
IPO	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
Scalar	Added recognition for signed add/sub/mul with overflow intrinsics to GVN as per Chris and Frits suggestion.	2011-07-09 00:25:11 +00:00
Utils	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
CMakeLists.txt	Move library stuff out of the toplevel CMakeLists.txt file.	2011-02-18 22:06:14 +00:00
Makefile	Revert r100896 and around - this breaks the only mingw32 buildbot we have.	2010-04-15 19:51:42 +00:00