Jakob Stoklund Olesen 7739cad69d Add a new kind of MachineOperand: MO_RegisterMask. ... Register masks will be used as a compact representation of large clobber lists. Currently, an x86 call instruction has some 40 operands representing call-clobbered registers. That's more than 1kB of useless operands per call site. A register mask operand references a bit mask of call-preserved registers, everything else is clobbered. The bit mask will typically come from TargetRegisterInfo::getCallPreservedMask(). By abandoning ImplicitDefs for call-clobbered registers, it also becomes possible to share call instruction descriptions between calling conventions, and we can get rid of the WINCALL* instructions. This patch introduces the new operand kind. Future patches will add RegMask support to target-independent passes before finally the fixed clobber lists can be removed from call instruction descriptions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148250 91177308-0d34-0410-b5e6-96231b3b80d8		2012-01-16 19:22:00 +00:00
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Analysis	Fix a corner case hit by redundant phi elimination running after LSR.	2012-01-14 03:17:23 +00:00
Archive	Support/FileSystem: Add file_magic and move a vew clients over to it.	2011-12-13 23:17:12 +00:00
AsmParser	Add 'llvm_unreachable' to passify GCC's understanding of the constraints	2012-01-10 18:08:01 +00:00
Bitcode	Add 'llvm_unreachable' to passify GCC's understanding of the constraints	2012-01-10 18:08:01 +00:00
CodeGen	Add a new kind of MachineOperand: MO_RegisterMask.	2012-01-16 19:22:00 +00:00
DebugInfo	Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch	2011-12-20 02:50:00 +00:00
ExecutionEngine	A fix for the previous commit: "integer constant is too large for ‘long’ type" error on some 32-bit bots	2012-01-16 09:31:10 +00:00
Linker	Link symbols with different visibilities according to the rules in the	2012-01-05 23:02:01 +00:00
MC	The error check for using -g with a .s file already containing dwarf .file	2012-01-11 18:04:47 +00:00
Object	Remove unused variables.	2011-12-25 01:20:19 +00:00
Support	Remove SetWorkingDirectory from the Process interface. Nothing in LLVM	2012-01-15 08:41:35 +00:00
TableGen	Delete CodeInit and CodeRecTy from TableGen.	2012-01-13 03:38:34 +00:00
Target	Make sure the non-SSE lowering for fences correctly clobbers EFLAGS. PR11768.	2012-01-16 16:42:21 +00:00
Transforms	Cosmetic patch for r148215.	2012-01-15 09:45:11 +00:00
VMCore	Added MVT::v2f16	2012-01-12 23:14:13 +00:00
CMakeLists.txt	Move TableGen's parser and entry point into a library	2011-10-01 16:41:13 +00:00
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile	Remove more of llvmc and dependencies.	2011-09-20 00:34:27 +00:00