Ulrich Weigand 965b20e39c [PowerPC] Always use mfocrf if available ... When accessing just a single CR register, it is always preferable to use mfocrf instead of mfcr, if the former is available on the CPU. Current code makes that distinction in many, but not all places where a single CR register value is retrieved. One missing location is PPCRegisterInfo::lowerCRSpilling. To fix this and make this simpler in the future, this patch changes the bulk of the back-end to always assume mfocrf is available and simply generate it when needed. On machines that actually do not support mfocrf, the instruction is replaced by mfcr at the very end, in EmitInstruction. This has the additional benefit that we no longer need the MFCRpseud hack, since before EmitInstruction we always have a MFOCRF instruction pattern, which already models data flow as required. The patch also adds the MFOCRF8 version of the instruction, which was missing so far. Except for the PPCRegisterInfo::lowerCRSpilling case, no change in generated code intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185556 91177308-0d34-0410-b5e6-96231b3b80d8		2013-07-03 17:05:42 +00:00
..
CMakeLists.txt	[PowerPC] Clean up generation of ha16() / lo16() markers	2013-05-23 22:26:41 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
Makefile
PPCAsmBackend.cpp	[PowerPC] Support absolute branches	2013-06-24 11:03:33 +00:00
PPCELFObjectWriter.cpp	[PowerPC] Remove VK_PPC_TLSGD and VK_PPC_TLSLD	2013-07-02 21:29:06 +00:00
PPCFixupKinds.h	[PowerPC] Support absolute branches	2013-06-24 11:03:33 +00:00
PPCMCAsmInfo.cpp	[MC/DWARF] Support .debug_frame / .debug_line code alignment factors	2013-06-12 14:46:54 +00:00
PPCMCAsmInfo.h	Emacs-tag and some comment fix for all ARM, CellSPU, Hexagon, MBlaze, MSP430, PPC, PTX, Sparc, X86, XCore.	2012-02-18 12:03:15 +00:00
PPCMCCodeEmitter.cpp	[PowerPC] Always use mfocrf if available	2013-07-03 17:05:42 +00:00
PPCMCExpr.cpp	[PowerPC] Support @higher et.al. modifiers	2013-06-21 14:43:42 +00:00
PPCMCExpr.h	[PowerPC] Support @higher et.al. modifiers	2013-06-21 14:43:42 +00:00
PPCMCTargetDesc.cpp	Remove the MachineMove class.	2013-05-13 01:16:13 +00:00
PPCMCTargetDesc.h	To avoid symbol clash, undefine PPC here. PPC may be predefined on some hosts.	2013-03-17 12:40:42 +00:00
PPCPredicates.cpp	[PowerPC] Add predicted forms of branches	2013-06-24 16:52:04 +00:00
PPCPredicates.h	[PowerPC] Add predicted forms of branches	2013-06-24 16:52:04 +00:00