Evan Cheng b55c8bed9d Add a pseudo instruction REG_SEQUENCE that takes a list of registers and ... sub-register indices and outputs a single super register which is formed from a consecutive sequence of registers. This is used as register allocation / coalescing aid and it is useful to represent instructions that output register pairs / quads. For example, v1024, v1025 = vload <address> where v1024 and v1025 forms a register pair. This really should be modelled as v1024<3>, v1025<4> = vload <address> but it would violate SSA property before register allocation is done. Currently we use insert_subreg to form the super register: v1026 = implicit_def v1027 - insert_subreg v1026, v1024, 3 v1028 = insert_subreg v1027, v1025, 4 ... = use v1024 = use v1028 But this adds pseudo live interval overlap between v1024 and v1025. We can now modeled it as v1024, v1025 = vload <address> v1026 = REG_SEQUENCE v1024, 3, v1025, 4 ... = use v1024 = use v1026 After coalescing, it will be v1026<3>, v1025<4> = vload <address> ... = use v1026<3> = use v1026 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102815 91177308-0d34-0410-b5e6-96231b3b80d8		2010-05-01 00:28:44 +00:00
..
bugpoint
buildit	Don't remove libLTO.dylib if it's not being installed in Developer/usr/lib;	2010-04-29 18:04:29 +00:00
count
crosstool
emacs
FileCheck	stringref-ize the MemoryBuffer::get apis. This requires	2010-04-05 22:42:30 +00:00
FileUpdate
fpcmp	Remove unnecessary uses of <iostream>.	2010-04-15 03:47:24 +00:00
git
jedit
lint
lit	lit: Add support to OneCommandPerFileTest format to take input directory from input path.	2010-04-09 02:15:10 +00:00
Misc
not
PerfectShuffle
TableGen	Add a pseudo instruction REG_SEQUENCE that takes a list of registers and	2010-05-01 00:28:44 +00:00
unittest	silence some -Wmissing-field-initializers warnings.	2010-04-18 03:30:32 +00:00
valgrind
vim
cgiplotNLT.pl
check-each-file
codegen-diff
countloc.sh
DSAclean.py
DSAextract.py
findmisopt
findoptdiff
findsym.pl
GenLibDeps.pl
GetSourceVersion
getsrcs.sh
importNLT.pl
llvm-native-gcc
llvm-native-gxx
llvm.grm
llvmdo
llvmgrep
Makefile
makellvm
mkpatch	update mkpatch for MC, patch by Aaron Gray	2010-03-12 06:32:12 +00:00
NewNightlyTest.pl	NNT: Add -nouname option, so machine uniquing can occur across physical machines.	2010-03-16 15:53:02 +00:00
NightlyTest.gnuplot
NightlyTestTemplate.html
NLT.schema
OldenDataRecover.pl
parseNLT.pl
plotNLT.pl
profile.pl
RegressionFinder.pl
UpdateCMakeLists.pl
userloc.pl
webNLT.pl