JF Bastien 9994b911f4 Targets: commonize some stack realignment code ... This patch does the following: * Fix FIXME on `needsStackRealignment`: it is now shared between multiple targets, implemented in `TargetRegisterInfo`, and isn't `virtual` anymore. This will break out-of-tree targets, silently if they used `virtual` and with a build error if they used `override`. * Factor out `canRealignStack` as a `virtual` function on `TargetRegisterInfo`, by default only looks for the `no-realign-stack` function attribute. Multiple targets duplicated the same `needsStackRealignment` code: - Aarch64. - ARM. - Mips almost: had extra `DEBUG` diagnostic, which the default implementation now has. - PowerPC. - WebAssembly. - x86 almost: has an extra `-force-align-stack` option, which the default implementation now has. The default implementation of `needsStackRealignment` used to just return `false`. My current patch changes the behavior by simply using the above shared behavior. This affects: - AMDGPU - BPF - CppBackend - MSP430 - NVPTX - Sparc - SystemZ - XCore - Out-of-tree targets This is a breaking change! `make check` passes. The only implementation of the `virtual` function (besides the slight different in x86) was Hexagon (which did `MF.getFrameInfo()->getMaxAlignment() > 8`), and potentially some out-of-tree targets. Hexagon now uses the default implementation. `needsStackRealignment` was being overwritten in `<Target>GenRegisterInfo.inc`, to return `false` as the default also did. That was odd and is now gone. Reviewers: sunfish Subscribers: aemerson, llvm-commits, jfb Differential Revision: http://reviews.llvm.org/D11160 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242727 91177308-0d34-0410-b5e6-96231b3b80d8		2015-07-20 22:51:32 +00:00
..
AsmParser	Silencing two MSVC warnings; 'argument' : truncation from 'unsigned int' to 'int16_t' and truncation of constant value. NFC intended.	2015-07-14 14:14:00 +00:00
Disassembler
InstPrinter
MCTargetDesc	MC: Remove MCSubtargetInfo() default constructor	2015-07-10 22:43:42 +00:00
TargetInfo
CMakeLists.txt	Remove getDataLayout() from TargetSelectionDAGInfo (had no users)	2015-07-09 02:10:08 +00:00
LLVMBuild.txt
Makefile
MicroMips32r6InstrFormats.td
MicroMips32r6InstrInfo.td
MicroMipsInstrFormats.td
MicroMipsInstrFPU.td
MicroMipsInstrInfo.td
Mips16FrameLowering.cpp	PrologEpilogInserter: Rewrite API to determine callee save regsiters.	2015-07-14 17:17:13 +00:00
Mips16FrameLowering.h	PrologEpilogInserter: Rewrite API to determine callee save regsiters.	2015-07-14 17:17:13 +00:00
Mips16HardFloat.cpp
Mips16HardFloatInfo.cpp
Mips16HardFloatInfo.h
Mips16InstrFormats.td
Mips16InstrInfo.cpp
Mips16InstrInfo.h
Mips16InstrInfo.td
Mips16ISelDAGToDAG.cpp	Make TargetLowering::getPointerTy() taking DataLayout as an argument	2015-07-09 02:09:04 +00:00
Mips16ISelDAGToDAG.h
Mips16ISelLowering.cpp	Make TargetLowering::getPointerTy() taking DataLayout as an argument	2015-07-09 02:09:04 +00:00
Mips16ISelLowering.h
Mips16RegisterInfo.cpp
Mips16RegisterInfo.h
Mips32r6InstrFormats.td
Mips32r6InstrInfo.td
Mips64InstrInfo.td
Mips64r6InstrInfo.td
Mips.h
Mips.td
MipsAnalyzeImmediate.cpp
MipsAnalyzeImmediate.h
MipsAsmPrinter.cpp	Move most user of TargetMachine::getDataLayout to the Module one	2015-07-16 06:11:10 +00:00
MipsAsmPrinter.h
MipsCallingConv.td
MipsCCState.cpp
MipsCCState.h
MipsCondMov.td
MipsConstantIslandPass.cpp	Move most user of TargetMachine::getDataLayout to the Module one	2015-07-16 06:11:10 +00:00
MipsDelaySlotFiller.cpp	Move most user of TargetMachine::getDataLayout to the Module one	2015-07-16 06:11:10 +00:00
MipsDSPInstrFormats.td
MipsDSPInstrInfo.td
MipsFastISel.cpp	Make TargetLowering::getPointerTy() taking DataLayout as an argument	2015-07-09 02:09:04 +00:00
MipsFrameLowering.cpp
MipsFrameLowering.h
MipsInstrFormats.td	[mips] Added support for the ERETNC instruction.	2015-07-20 12:28:56 +00:00
MipsInstrFPU.td
MipsInstrInfo.cpp
MipsInstrInfo.h
MipsInstrInfo.td	[mips] Added support for the ERETNC instruction.	2015-07-20 12:28:56 +00:00
MipsISelDAGToDAG.cpp	Make TargetLowering::getPointerTy() taking DataLayout as an argument	2015-07-09 02:09:04 +00:00
MipsISelDAGToDAG.h
MipsISelLowering.cpp	Move most user of TargetMachine::getDataLayout to the Module one	2015-07-16 06:11:10 +00:00
MipsISelLowering.h	Allow {e,r}bp as the target of {read,write}_register.	2015-07-09 17:40:29 +00:00
MipsLongBranch.cpp
MipsMachineFunction.cpp
MipsMachineFunction.h
MipsMCInstLower.cpp
MipsMCInstLower.h
MipsModuleISelDAGToDAG.cpp
MipsMSAInstrFormats.td
MipsMSAInstrInfo.td
MipsOptimizePICCall.cpp
MipsOptionRecord.h
MipsOs16.cpp
MipsRegisterInfo.cpp	Targets: commonize some stack realignment code	2015-07-20 22:51:32 +00:00
MipsRegisterInfo.h	Targets: commonize some stack realignment code	2015-07-20 22:51:32 +00:00
MipsRegisterInfo.td
MipsSchedule.td
MipsSEFrameLowering.cpp	[Mips] Make helper function static, NFC.	2015-07-16 11:12:05 +00:00
MipsSEFrameLowering.h	PrologEpilogInserter: Rewrite API to determine callee save regsiters.	2015-07-14 17:17:13 +00:00
MipsSEInstrInfo.cpp
MipsSEInstrInfo.h
MipsSEISelDAGToDAG.cpp	Make TargetLowering::getPointerTy() taking DataLayout as an argument	2015-07-09 02:09:04 +00:00
MipsSEISelDAGToDAG.h
MipsSEISelLowering.cpp	Re-instate the EVT parameter to getScalarShiftAmountTy() for OOT user	2015-07-09 15:12:23 +00:00
MipsSEISelLowering.h
MipsSERegisterInfo.cpp
MipsSERegisterInfo.h
MipsSubtarget.cpp	Remove getDataLayout() from TargetSelectionDAGInfo (had no users)	2015-07-09 02:10:08 +00:00
MipsSubtarget.h	[mips] Added support for the ERETNC instruction.	2015-07-20 12:28:56 +00:00
MipsTargetMachine.cpp	Make TargetTransformInfo keeping a reference to the Module DataLayout	2015-07-09 02:08:42 +00:00
MipsTargetMachine.h
MipsTargetObjectFile.cpp	Move most user of TargetMachine::getDataLayout to the Module one	2015-07-16 06:11:10 +00:00
MipsTargetObjectFile.h	Move most user of TargetMachine::getDataLayout to the Module one	2015-07-16 06:11:10 +00:00
MipsTargetStreamer.h
MSA.txt