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LLVM backend for 6502
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Evan Cheng ec52aaa12f Some ARM implementaions, e.g. A-series, does return stack prediction. That is, 
the processor keeps a return addresses stack (RAS) which stores the address
and the instruction execution state of the instruction after a function-call
type branch instruction.

Calling a "noreturn" function with normal call instructions (e.g. bl) can
corrupt RAS and causes 100% return misprediction so LLVM should use a
unconditional branch instead. i.e.
mov lr, pc
b _foo
The "mov lr, pc" is issued in order to get proper backtrace.

rdar://8979299


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151623 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28 06:42:03 +00:00
autoconf Strip extraneous information, if present, from the linker version string on 2012-02-28 02:55:41 +00:00
bindings
cmake Enable -Wcovered-switch-default as it matches the switch style used in llvm. 2012-02-28 02:01:55 +00:00
docs Update tblgen command guide. Remove unused tblgen InstrEnumEmitter files. 2012-02-27 02:31:09 +00:00
examples Switch to a more idiomatic way of silencing unused variable warnings in 2012-02-20 00:02:49 +00:00
include Some ARM implementaions, e.g. A-series, does return stack prediction. That is, 2012-02-28 06:42:03 +00:00
lib Some ARM implementaions, e.g. A-series, does return stack prediction. That is, 2012-02-28 06:42:03 +00:00
projects Enable -Wcovered-switch-default as it matches the switch style used in llvm. 2012-02-28 02:01:55 +00:00
runtime Fixing a warning in MSVC (this is also a test commit) 2012-02-05 19:43:39 +00:00
test Some ARM implementaions, e.g. A-series, does return stack prediction. That is, 2012-02-28 06:42:03 +00:00
tools [Object] Add {begin,end}_dynamic_symbols stubs and implementation for ELF. 2012-02-28 00:40:37 +00:00
unittests Fix typos. 2012-02-22 16:01:54 +00:00
utils Convert generated intrinsic attributes to use an array lookup as Chris suggested in PR11951. 2012-02-28 06:32:00 +00:00
.gitignore
CMakeLists.txt add LLVM_VERSION_MAJOR and _MINOR defines 2012-02-13 18:48:10 +00:00
configure Strip extraneous information, if present, from the linker version string on 2012-02-28 02:55:41 +00:00
CREDITS.TXT Update credits. 2012-02-16 18:54:41 +00:00
LICENSE.TXT Happy new year 2012! 2012-01-01 08:16:56 +00:00
llvm.spec.in
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile
Makefile.common
Makefile.config.in Enable -Wcovered-switch-default as it matches the switch style used in llvm. 2012-02-28 02:01:55 +00:00
Makefile.rules Enable -Wcovered-switch-default as it matches the switch style used in llvm. 2012-02-28 02:01:55 +00:00
README.txt test commit 2012-02-07 08:18:05 +00:00

README.txt 

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

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