Evan Cheng c92da3882e There are times when the coalescer would not coalesce away a copy but the copy ... can be eliminated by the allocator is the destination and source targets the same register. The most common case is when the source and destination registers are in different class. For example, on x86 mov32to32_ targets GR32_ which contains a subset of the registers in GR32. The allocator can do 2 things: 1. Set the preferred allocation for the destination of a copy to that of its source. 2. After allocation is done, change the allocation of a copy destination (if legal) so the copy can be eliminated. This eliminates 443 extra moves from 403.gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43662 91177308-0d34-0410-b5e6-96231b3b80d8		2007-11-03 07:20:12 +00:00
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Analysis	Fix for PR1741.	2007-10-25 02:36:18 +00:00
Archive
Assembler
Bindings/Ocaml	C and Objective Caml bindings for PHINode::addIncoming etc.	2007-10-08 18:14:39 +00:00
Bitcode
BugPoint
C++Frontend	New test.	2007-10-02 00:39:19 +00:00
CFrontend	New test.	2007-10-30 23:07:47 +00:00
CodeGen	There are times when the coalescer would not coalesce away a copy but the copy	2007-11-03 07:20:12 +00:00
DebugInfo
ExecutionEngine	Convert .cvsignore files	2007-06-29 16:35:07 +00:00
Feature	llvm/test programs should not be execution programs. This	2007-10-23 17:56:04 +00:00
FrontendAda	For multipart tests, place the parts with no	2007-07-23 13:41:53 +00:00
FrontendObjC	new testcase	2007-10-23 18:07:23 +00:00
Integer
lib
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TableGen
Transforms	Fix test/Transforms/DeadStoreElimination/PartialStore.ll, which had been	2007-11-01 05:29:16 +00:00
Verifier
Makefile	Add explicit --enable-bindings option to configure.	2007-10-02 09:50:18 +00:00
Makefile.tests
TestRunner.sh