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LLVM backend for 6502
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Arnold Schwaighofer bf37bf9e21 ARM cost model: Make some vector integer to float casts cheaper 
The default logic marks them as too expensive.

For example, before this patch we estimated:
  cost of 16 for instruction:   %r = uitofp <4 x i16> %v0 to <4 x float>

While this translates to:
  vmovl.u16 q8, d16
  vcvt.f32.u32  q8, q8

All other costs are left to the values assigned by the fallback logic. Theses
costs are mostly reasonable in the sense that they get progressively more
expensive as the instruction sequences emitted get longer.

radar://13445992

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177334 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18 22:47:09 +00:00
autoconf Turn anonymous type in anonymous union warning back on after cleaning up 2013-03-15 00:43:00 +00:00
bindings
cmake Turn anonymous type in anonymous union warning back on after cleaning up 2013-03-15 00:43:00 +00:00
docs Make the fields in the diagram match the descriptive text above them. 2013-03-18 20:21:47 +00:00
examples
include Remove default copy ctor/assignment, makes AttributeSet trivially copyable. 2013-03-18 12:14:30 +00:00
lib ARM cost model: Make some vector integer to float casts cheaper 2013-03-18 22:47:09 +00:00
projects Print a warning message if compiler-rt can't be built because of old CMake version to make this requirement more visible to users 2013-03-05 14:43:07 +00:00
runtime Remove GCDAProfiling.c. This copy is old, the copy in compiler-rt is newer and 2013-03-07 02:03:08 +00:00
test ARM cost model: Make some vector integer to float casts cheaper 2013-03-18 22:47:09 +00:00
tools Build LLVMgold.so on FreeBSD using cmake. 2013-03-17 12:01:05 +00:00
unittests Test case for graceful handling of long file names on Windows. Patch thanks to Paul Robinson! 2013-03-16 15:00:51 +00:00
utils TableGen fix for the new machine model. 2013-03-18 20:42:25 +00:00
.arcconfig
.gitignore
CMakeLists.txt Revert CMake version bump since we don't actually need 2.8.6 any more. 2013-02-18 11:53:37 +00:00
CODE_OWNERS.TXT Update 2013-03-18 17:47:33 +00:00
configure Turn anonymous type in anonymous union warning back on after cleaning up 2013-03-15 00:43:00 +00:00
CREDITS.TXT Update 2013-03-18 17:47:33 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile Improved svn repo searching for 'make update' 2013-01-28 03:19:57 +00:00
Makefile.common
Makefile.config.in Turn anonymous type in anonymous union warning back on after cleaning up 2013-03-15 00:43:00 +00:00
Makefile.rules Turn anonymous type in anonymous union warning back on after cleaning up 2013-03-15 00:43:00 +00:00
README.txt Revert "Test commit" 2013-02-22 19:19:41 +00:00

README.txt 

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

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Please see the documentation provided in docs/ for further
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