JF Bastien ead0e16c6e 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 llvm-svn: 242727		2015-07-20 22:51:32 +00:00
..
bugpoint
buildit
count
crosstool
emacs
FileCheck
fpcmp
git
git-svn
jedit
kate
KillTheDoctor
lint
lit	[lit] Implement 'env' in the internal shell	2015-07-20 19:42:08 +00:00
llvm-build
llvm-lit
Misc
not
PerfectShuffle
release	Avoid early pipefail exits due to grep failures in stage comparisons.	2015-07-20 22:24:40 +00:00
TableGen	Targets: commonize some stack realignment code	2015-07-20 22:51:32 +00:00
Target/ARM
testgen
textmate
unittest
valgrind
vim	[vim] Update the syntax to mark REQUIRES lines and not talk about	2015-07-15 01:48:40 +00:00
yaml-bench
bisect
check-each-file
clang-parse-diagnostics-file
codegen-diff
countloc.sh
create_ladder_graph.py
DSAclean.py
DSAextract.py
findmisopt
findoptdiff
findsym.pl
GenLibDeps.pl
GetRepositoryPath
GetSourceVersion
getsrcs.sh
lldbDataFormatters.py
llvm-compilers-check
llvm-native-gxx
llvm.grm
llvm.natvis
LLVMBuild.txt
llvmdo
llvmgrep
Makefile
makellvm
shuffle_fuzz.py
sort_includes.py
test_debuginfo.pl
update_llc_test_checks.py
UpdateCMakeLists.pl
wciia.py