Jakob Stoklund Olesen e928ec9480 Allow x87 FP registers to be alive globally in a function. ... FP_REG_KILL instructions are still inserted, but can be disabled by passing -live-x87 to llc. The X87FPRegKillInserterPass is going to be removed shortly. CFG edges are partioned into bundles where the x87 stack must be allocated identically. Code is insertad at the end of each basic block that shuffles the live FP registers to match the outgoing bundles expectations. This fix is in preparation for some upcoming register allocator improvements that may extend the live range of registers beyond a basic block, similar to LICM. It also provides a nice runtime speedup if you are building with -mfpmath=387. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108529 91177308-0d34-0410-b5e6-96231b3b80d8		2010-07-16 16:38:12 +00:00
..
Analysis	eliminate CallInst::ArgOffset	2010-07-16 09:38:02 +00:00
Archive
AsmParser
Bitcode
CodeGen	Get rid of a bunch of duplicated ELF enum values.	2010-07-16 07:53:29 +00:00
CompilerDriver
ExecutionEngine	Get rid of a bunch of duplicated ELF enum values.	2010-07-16 07:53:29 +00:00
Linker
MC	fix indentation and 80 cols	2010-07-15 21:19:31 +00:00
Support
System
Target	Allow x87 FP registers to be alive globally in a function.	2010-07-16 16:38:12 +00:00
Transforms	eliminate CallInst::ArgOffset	2010-07-16 09:38:02 +00:00
VMCore	eliminate CallInst::ArgOffset	2010-07-16 09:38:02 +00:00
Makefile