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LLVM backend for 6502
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Duncan Sands 3cd652d530 Add a small pass that sets the readnone/readonly 
attributes on functions, based on the result of
alias analysis.  It's not hardwired to use
GlobalsModRef even though this is the only (AFAIK)
alias analysis that results in this pass actually
doing something.  Enable as follows:
  opt ... -globalsmodref-aa -markmodref ...
Advantages of this pass: (1) records the result
of globalsmodref in the bitcode, meaning it is
available for use by later passes (currently
the pass manager isn't smart enough to magically
make an advanced alias analysis available to all
later passes), which may expose more optimization
opportunities; (2) hopefully speeds up compilation
when code is optimized twice, for example when a
file is compiled to bitcode, then later LTO is done
on it: marking functions readonly/readnone when
producing the initial bitcode should speed up alias
analysis during LTO; (3) good for discovering that
globalsmodref doesn't work very well :)
Not currently turned on by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55604 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-01 11:40:11 +00:00
autoconf Enable -fvisibility-inlines-hidden by default for compilers which 2008-08-30 01:16:19 +00:00
bindings PR2731: C and Ocaml bindings for setTailCall and isTailCall. 2008-08-30 16:34:54 +00:00
docs
examples
include Add a small pass that sets the readnone/readonly 2008-09-01 11:40:11 +00:00
lib Add a small pass that sets the readnone/readonly 2008-09-01 11:40:11 +00:00
projects
runtime
test Revert the "XFAIL" for the rotate_ops.ll testcase. Instead, mark ISD::ROTR 2008-08-31 02:59:23 +00:00
tools
utils Add initial support for fast isel of instructions that have inputs pinned to physical registers. 2008-08-29 17:45:56 +00:00
website
win32
Xcode
build-for-llvm-top.sh
configure Enable -fvisibility-inlines-hidden by default for compilers which 2008-08-30 01:16:19 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
Makefile
Makefile.common
Makefile.config.in Enable -fvisibility-inlines-hidden by default for compilers which 2008-08-30 01:16:19 +00:00
Makefile.rules Enable -fvisibility-inlines-hidden by default for compilers which 2008-08-30 01:16:19 +00:00
ModuleInfo.txt
README.txt

README.txt 

Low Level Virtual Machine (LLVM)
================================

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