Jakob Stoklund Olesen c58894bc36 Add a RegisterClassInfo class that lazily caches information about ... register classes. It provides information for each register class that cannot be determined statically, like: - The number of allocatable registers in a class after filtering out the reserved and invalid registers. - The preferred allocation order with registers that overlap callee-saved registers last. - The last callee-saved register that overlaps a given physical register. This information usually doesn't change between functions, so it is reused for compiling multiple functions when possible. The many possible combinations of reserved and callee saves registers makes it unfeasible to compute this information statically in TableGen. Use RegisterClassInfo to count available registers in various heuristics in SimpleRegisterCoalescing, making the pass run 4% faster. llvm-svn: 132450		2011-06-02 02:19:35 +00:00
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Analysis	When marking a block as being unanalyzable, use "Clobber" on the terminator instead of the first instruction in the block. This is a bit of a hack; "Clobber" isn't really the right marking in the first place. memdep doesn't really have any way of properly expressing "unanalyzable" at the moment. Using it on the terminator is much less ambiguous than using it on an arbitrary instruction, though.	2011-06-02 00:08:52 +00:00
Archive	Revert PathV2 changes, as sys::fs::unique_file is not finished yet.	2011-03-01 19:50:55 +00:00
AsmParser	Replace the -unwind-tables option with a per function flag. This is more	2011-05-25 03:44:17 +00:00
Bitcode	Fix LTO builds with xcode 4.	2011-05-26 18:59:54 +00:00
CodeGen	Add a RegisterClassInfo class that lazily caches information about	2011-06-02 02:19:35 +00:00
CompilerDriver	Build CompilerDriver library.	2011-03-12 22:01:42 +00:00
ExecutionEngine	Avoid a Twine that referenced a tmp (which proceded to go out of scope before	2011-05-19 00:45:05 +00:00
Linker	Set the unnamed_addr only when we're creating a new GV in the dest module.	2011-03-29 23:31:06 +00:00
MC	Add new -d option to tblgen. It writes a make(1)-style dependency file.	2011-06-01 13:10:15 +00:00
Object	Remove dead variable pointed out by GCC 4.6 warnings, and reflow this a little	2011-05-02 05:05:29 +00:00
Support	Add new -d option to tblgen. It writes a make(1)-style dependency file.	2011-06-01 13:10:15 +00:00
Target	Detect FI|cst pattern in MipsDAGToDAGISel::SelectAddr. Patch by Sasa Stankovic.	2011-06-02 01:03:14 +00:00
Transforms	Reapply 132348 with fixes. rdar://problem/6501862	2011-06-01 16:42:47 +00:00
VMCore	Add a minor missing -verify check. Found by inspection.	2011-05-31 20:12:07 +00:00
CMakeLists.txt	Build CompilerDriver library.	2011-03-12 22:01:42 +00:00
Makefile	Add LLVMObject Library.	2010-11-15 03:21:41 +00:00