7 Commits

Author	SHA1	Message	Date
Chris Lattner	b1ed91f397	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
Dan Gohman	0d4bbf2c4a	Remove obsolete -f flags. ... llvm-svn: 79992	2009-08-25 15:38:29 +00:00
Gabor Greif	d01c562e48	Eliminate questionable syntax for stdin redirection. This probably also speeds things up a bit. ... llvm-svn: 51357	2008-05-20 22:07:21 +00:00
Tanya Lattner	5429dbf6c7	Remove llvm-upgrade ... llvm-svn: 47119	2008-02-14 07:57:12 +00:00
Reid Spencer	e7df634b3d	Fix the syntax for these tests. Noticed by Duncan Sands. ... llvm-svn: 36132	2007-04-16 15:00:39 +00:00
Reid Spencer	ce380568b5	For PR761: ... Remove "target endian/pointersize" or add "target datalayout" to make the test parse properly or set the datalayout because defaults changes. For PR645: Make global names use the @ prefix. For llvm-upgrade changes: Fix test cases or completely remove use of llvm-upgrade for test cases that cannot survive the new renaming or upgrade capabilities. llvm-svn: 33533	2007-01-26 08:25:06 +00:00
Reid Spencer	83b3d82672	Regression is gone, don't try to find it on clean target. ... llvm-svn: 33296	2007-01-17 07:59:14 +00:00