Chris Lattner 1afcace3a3 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134829 91177308-0d34-0410-b5e6-96231b3b80d8		2011-07-09 17:41:24 +00:00
..
Analysis
Archive
Assembler	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
Bindings/Ocaml
Bitcode
BugPoint
CodeGen	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
DebugInfo
ExecutionEngine
Feature	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
FrontendAda
FrontendC	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
FrontendC++	Remove testcase. It's problematic for the buildbots.	2011-06-03 20:43:58 +00:00
FrontendFortran
FrontendObjC
FrontendObjC++
Integer
lib
Linker	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
LLVMC
MC
Object
Other	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
Scripts
TableGen
Transforms	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
Unit
Verifier	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
CMakeLists.txt
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
site.exp.in
TestRunner.sh