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LLVM backend for 6502
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c11b107f21
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Benjamin Kramer c11b107f21 JumpThreading: Turn a select instruction into branching if it allows to thread one half of the select. 
This is a common pattern coming out of simplifycfg generating gross code.

a:                                       ; preds = %entry
  %sel = select i1 %cmp1, double %add, double 0.000000e+00
  br label %b

b:
  %cond5 = phi double [ %sel, %a ], [ %sub, %entry ]
  %cmp6 = fcmp oeq double %cond5, 0.000000e+00
  br i1 %cmp6, label %if.then, label %if.end

becomes

a:
  br i1 %cmp1, label %b, label %if.then

b:
  %cond5 = phi double [ %sub, %entry ], [ %add, %a ]
  %cmp6 = fcmp oeq double %cond5, 0.000000e+00
  br i1 %cmp6, label %if.then, label %if.end

Skipping block b completely if possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187880 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-07 10:29:38 +00:00
autoconf Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
bindings We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
cmake Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
docs [LangRef] Alphabetize function attribute listing. 2013-08-06 19:34:37 +00:00
examples ExceptionDemo.cpp: Tweak a @param. [-Wdocumentation] 2013-07-29 11:03:50 +00:00
include Commit a no-op change to StringRef to (hopefully) trigger build bots. 2013-08-07 09:52:34 +00:00
lib JumpThreading: Turn a select instruction into branching if it allows to thread one half of the select. 2013-08-07 10:29:38 +00:00
projects Build with the $RDYNAMIC flag on Darwin as well as other platforms. 2013-08-04 22:06:11 +00:00
runtime Use @rpath for libraries rather than @executable_path on OSX. 2013-08-02 01:51:52 +00:00
test JumpThreading: Turn a select instruction into branching if it allows to thread one half of the select. 2013-08-07 10:29:38 +00:00
tools Change public functions of LTOCodeGenerator from ret-false-on-succ to ret-true-on-succ. 2013-08-07 05:19:23 +00:00
unittests Disabled columnWidth test for OSX, need someone with Mac to deal with this effectively. 2013-08-07 02:08:31 +00:00
utils [lit] Use py2&3 compatible exec() syntax. 2013-08-07 03:25:28 +00:00
.arcconfig Add .arcconfig to the repository. Useful if someone wants to use phabricator's command line tool. 2012-12-01 12:07:58 +00:00
.gitignore Add extra vim swap file pattern 2012-10-09 23:48:34 +00:00
CMakeLists.txt Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
CODE_OWNERS.TXT Add more owners to CODE_OWNERS.TXT (Kostya Serebryany: AddressSanitizer and ThreadSanitizer; Evgeniy Stepanov: MemorySanitizer) 2013-06-27 08:47:12 +00:00
configure Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
CREDITS.TXT Identify me on IRC. 2013-06-18 22:09:36 +00:00
LICENSE.TXT Be more specific and capitalize filenames. 2013-05-21 21:22:34 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile Fix regular expression used by 'make update' to only look for 'I' and '?' at the start of svn info results and to check for spaces after 'I' instead of just after '?'. 2013-07-03 14:48:37 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Add an autoconf option for turning on -gsplit-dwarf by default 2013-06-25 01:12:25 +00:00
Makefile.rules Remove oddly named libraries with "make uninstall-local" 2013-08-06 12:50:45 +00:00
README.txt test 2013-04-17 05:34:03 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
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