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LLVM backend for 6502
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David Majnemer 2822246ece [IR] Make getFirstNonPHI return null if the BB is empty 
getFirstNonPHI's documentation states that it returns null if there is
no non-PHI instruction.  However, it instead returns a pointer to the
end iterator.  The implementation of getFirstNonPHI claims that
dereferencing the iterator will result in an assertion failure but this
doesn't occur.  Instead, machinery like getFirstInsertionPt will attempt
to isa<> this invalid memory which results in unpredictable behavior.
Instead, make getFirst* return null if no such instruction exists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241570 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-07 09:15:29 +00:00
autoconf [Support] Lazy load of dbghlp.dll on Windows 2015-07-02 14:34:57 +00:00
bindings Remove getRelocationAddress. 2015-07-06 14:55:37 +00:00
cmake [CMake] add_llvm_symbol_exports: Use Python oneliner instead of "cmd.exe /c type" to generate *.def. 2015-07-05 08:56:38 +00:00
docs [NFC] Minor editorial fixes to the CodeGen docs. 2015-07-02 09:32:01 +00:00
examples Simplify the Mangler interface now that DataLayout is mandatory. 2015-06-23 13:59:29 +00:00
include Fix \param in r241472. [-Wdocumentation] 2015-07-07 04:09:55 +00:00
lib [IR] Make getFirstNonPHI return null if the BB is empty 2015-07-07 09:15:29 +00:00
projects build: make libunwind a proper project 2015-04-25 01:47:39 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
test [ARM] Define a subtarget feature and use it to decide whether long calls should 2015-07-07 06:54:42 +00:00
tools llvm-nm: treat weak undefined as undefined. 2015-07-06 21:36:23 +00:00
unittests [Triple] Add a helper to switch between big/little endian variants 2015-07-06 23:58:14 +00:00
utils Make UnitTestMain/TestMain.cpp free from llvm/Config/config.h. 2015-07-06 23:51:40 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Simplify .gitignore: projects/* => projects/*/ 2015-06-29 17:43:26 +00:00
CMakeLists.txt Do not pass -allow-shlib-undefined to the Solaris linker. 2015-06-22 18:24:01 +00:00
CODE_OWNERS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
configure Disallow in-source builds (as we already do for the cmake build). 2015-07-01 18:09:21 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Disallow in-source builds (as we already do for the cmake build). 2015-07-01 18:09:21 +00:00
Makefile.rules Add support for SunOS function/data sections and associated 2015-03-03 20:54:29 +00:00
README.txt Revert test commit at revision 233535. 2015-03-30 12:39:03 +00:00

README.txt 

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