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LLVM backend for 6502
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Evan Cheng 4d09efd7b8 Speculatively execute a block when the the block is the then part of a triangle shape and it contains a single, side effect free, cheap instruction. The branch is eliminated by adding a select instruction. i.e. 
Turn                                                                                                                                                                                                       
BB:                                                                                                                                                                                                        
    %t1 = icmp                                                                                                                                                                                             
    br i1 %t1, label %BB1, label %BB2                                                                                                                                                                      
BB1:                                                                                                                                                                                                       
    %t3 = add %t2, c                                                                                                                                                                                       
    br label BB2                                                                                                                                                                                           
BB2:                                                                                                                                                                                                       
=>                                                                                                                                                                                                         
BB:                                                                                                                                                                                                        
    %t1 = icmp                                                                                                                                                                                             
    %t4 = add %t2, c                                                                                                                                                                                       
    %t3 = select i1 %t1, %t2, %t3


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52073 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-07 08:52:29 +00:00
autoconf For PR1338: rename include/llvm/ADT/ilist and friends to end with ".h" 2008-05-29 17:41:17 +00:00
bindings Remove a duplicative binding. Patch by Mahadevan R. 2008-05-19 05:47:10 +00:00
docs Include loop deletion and the ADCE rewrite in the release notes. 2008-06-06 16:23:15 +00:00
examples API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.) 2008-05-16 19:29:10 +00:00
include get rid of ExtractValueInst::init's Value argument, it is already passed to the UnaryInstruction ctor 2008-06-06 21:06:32 +00:00
lib Speculatively execute a block when the the block is the then part of a triangle shape and it contains a single, side effect free, cheap instruction. The branch is eliminated by adding a select instruction. i.e. 2008-06-07 08:52:29 +00:00
projects remove attributions from the rest of the llvm makefiles. 2007-12-29 20:11:13 +00:00
runtime Fixing the stack walker. 2008-01-24 05:16:36 +00:00
test Speculatively execute a block when the the block is the then part of a triangle shape and it contains a single, side effect free, cheap instruction. The branch is eliminated by adding a select instruction. i.e. 2008-06-07 08:52:29 +00:00
tools Make all help strings start in upper case. 2008-05-30 21:14:10 +00:00
utils Wrap MVT::ValueType in a struct to get type safety 2008-06-06 12:08:01 +00:00
website Prepare for "core" website. 2007-08-03 05:43:35 +00:00
win32 update vc configure project for renaming of 2008-06-02 16:37:36 +00:00
Xcode Merge LLVMBuilder and FoldingBuilder, calling 2008-04-13 06:22:09 +00:00
build-for-llvm-top.sh Allow the configure options to be set according to the llvm-top options. 2007-08-31 19:53:42 +00:00
configure Regenerate 2008-05-29 17:41:34 +00:00
CREDITS.TXT merge of use-diet branch to trunk 2008-05-10 08:32:32 +00:00
LICENSE.TXT scoped_ptr.h was removed. 2008-02-09 22:50:06 +00:00
llvm.spec.in * llvm.spec.in: update blurb 2007-07-13 09:48:29 +00:00
Makefile For PR1338: rename include/llvm/ADT/ilist and friends to end with ".h" 2008-05-29 17:41:17 +00:00
Makefile.common remove attributions from the rest of the llvm makefiles. 2007-12-29 20:11:13 +00:00
Makefile.config.in Reverting r48974. See PR2183 for details. 2008-03-31 16:46:23 +00:00
Makefile.rules Warn of potential violations of strict aliasing rules. 2008-06-05 23:00:08 +00:00
ModuleInfo.txt Update to include clean and install commands. 2007-07-20 20:54:41 +00:00
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