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
..
AsmMatcherEmitter.cpp	Reverting r241058 because it's causing buildbot failures.	2015-06-30 12:32:53 +00:00
AsmWriterEmitter.cpp
AsmWriterInst.cpp
AsmWriterInst.h
CallingConvEmitter.cpp	Move most user of TargetMachine::getDataLayout to the Module one	2015-07-16 06:11:10 +00:00
CMakeLists.txt
CodeEmitterGen.cpp
CodeGenDAGPatterns.cpp	Avoid a Symbol -> Name -> Symbol conversion.	2015-06-22 17:46:53 +00:00
CodeGenDAGPatterns.h
CodeGenInstruction.cpp
CodeGenInstruction.h	[TableGen] Use the SMLoc header file instead of SourceMgr header file in a couple places. NFC	2015-06-08 01:35:40 +00:00
CodeGenIntrinsics.h
CodeGenMapTable.cpp
CodeGenRegisters.cpp
CodeGenRegisters.h
CodeGenSchedule.cpp
CodeGenSchedule.h
CodeGenTarget.cpp	Rename llvm.frameescape and llvm.framerecover to localescape and localrecover	2015-07-07 22:25:32 +00:00
CodeGenTarget.h
CTagsEmitter.cpp	[TableGen] Remove unnecessary default constructed SMLoc that just existed to return. Instead just call the default constructor in the return.	2015-06-08 01:35:45 +00:00
DAGISelEmitter.cpp
DAGISelMatcher.cpp
DAGISelMatcher.h
DAGISelMatcherEmitter.cpp
DAGISelMatcherGen.cpp
DAGISelMatcherOpt.cpp
DFAPacketizerEmitter.cpp
DisassemblerEmitter.cpp	[TableGen] Improve decoding options for non-orthogonal instructions	2015-07-15 08:04:27 +00:00
FastISelEmitter.cpp
FixedLenDecoderEmitter.cpp	[TableGen] Improve decoding options for non-orthogonal instructions	2015-07-15 08:04:27 +00:00
InstrInfoEmitter.cpp
IntrinsicEmitter.cpp
LLVMBuild.txt
Makefile
module.modulemap
OptParserEmitter.cpp
PseudoLoweringEmitter.cpp
RegisterInfoEmitter.cpp	Targets: commonize some stack realignment code	2015-07-20 22:51:32 +00:00
SequenceToOffsetTable.h
SubtargetEmitter.cpp	MC: Remove MCSubtargetInfo() default constructor	2015-07-10 22:43:42 +00:00
TableGen.cpp
TableGenBackends.h
tdtags
X86DisassemblerShared.h
X86DisassemblerTables.cpp	AVX-512: Added all AVX-512 forms of Vector Convert for Float/Double/Int/Long types.	2015-07-13 13:26:20 +00:00
X86DisassemblerTables.h
X86ModRMFilters.cpp
X86ModRMFilters.h
X86RecognizableInstr.cpp	AVX-512: Added all SKX forms of GATHER instructions.	2015-06-28 10:53:29 +00:00
X86RecognizableInstr.h