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LLVM backend for 6502
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5bbee4b40a
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Dan Gohman 5bbee4b40a Work around an interaction between fast-isel and regalloc=local. The 
local register allocator's physreg liveness doesn't recognize subregs,
so it doesn't know that defs of %ecx that are immediately followed by
uses of %cl aren't dead. This comes up due to the way fast-isel emits
shift instructions.

This is a temporary workaround. Arguably, local regalloc should
handle subreg references correctly. On the other hand, perhaps
fast-isel should use INSERT_SUBREG instead of just assigning to the
most convenient super-register of %cl when lowering shifts.

This fixes MultiSource/Benchmarks/MallocBench/espresso,
MultiSource/Applications/hexxagon, and others, under -fast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56947 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02 14:56:12 +00:00
autoconf When looking for executable extensions, ignore .dSYM, as that's the debug info directory on Darwin. 2008-09-26 17:27:58 +00:00
bindings PR2731: C and Ocaml bindings for setTailCall and isTailCall. 2008-08-30 16:34:54 +00:00
cmake CMake: Builds all targets. 2008-09-26 04:40:32 +00:00
docs Stacker is dead. 2008-09-30 15:18:29 +00:00
examples CMake: Builds all examples. Corrected name of CBackend target. 2008-09-26 19:48:03 +00:00
include "The original bug was a complaint that _mm_srli_si128 mis-compiled when passed 2008-10-02 05:56:52 +00:00
lib Work around an interaction between fast-isel and regalloc=local. The 2008-10-02 14:56:12 +00:00
projects Add "sample" documentation to sample project. 2008-09-15 05:31:29 +00:00
runtime Fixing the stack walker. 2008-01-24 05:16:36 +00:00
test Disable fast-isel for this test, as it doesn't emit the same 2008-10-01 23:48:35 +00:00
tools CMake: Builds all targets. 2008-09-26 04:40:32 +00:00
utils Move the primary fast-isel top-level comments to FastISel.cpp, where 2008-09-30 20:48:29 +00:00
website Prepare for "core" website. 2007-08-03 05:43:35 +00:00
win32 Add Attributes.cpp to the vcproj. 2008-09-24 17:23:28 +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
CMakeLists.txt CMake: Builds all targets. 2008-09-26 04:40:32 +00:00
configure When looking for executable extensions, ignore .dSYM, as that's the debug info directory on Darwin. 2008-09-26 17:27:58 +00:00
CREDITS.TXT Add another description to my entry. 2008-08-28 23:16:37 +00:00
LICENSE.TXT llvmc doesn't exist anymore, and llvmc2 doesn't have a special license file. 2008-06-20 20:05:57 +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 Reapply majority of r55557 but with the changes to compilation flags 2008-09-02 17:35:16 +00:00
Makefile.rules Reapply majority of r55557 but with the changes to compilation flags 2008-09-02 17:35:16 +00:00
ModuleInfo.txt Update to include clean and install commands. 2007-07-20 20:54:41 +00:00
README.txt Remove extra lines 2008-07-28 20:50:25 +00:00

README.txt 

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

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