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LLVM backend for 6502
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Jakob Stoklund Olesen 1c062c24ab Fix -widen-vmovs liveness issues. 
When widening a copy, we are reading a larger register that may not be
live.  Use an <undef> flag to tell the register scavenger and machine
code verifier that we know the value isn't defined.

We now widen:

  %S6<def> = COPY %S4<kill>, %D3<imp-def>

into:

  %D3<def> = VMOVD %D2<undef>, pred:14, pred:%noreg, %S4<imp-use,kill>

This also keeps the <kill> flag on %S4 so we don't inadvertently kill a
live value in %S5.

Finally, ensure that ARMBaseInstrInfo::setExecutionDomain() preserves
the <undef> flag when converting VMOVD to VORR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141746 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-12 00:06:23 +00:00
autoconf
bindings ocaml/C bindings: type->isSized() 2011-10-06 12:13:28 +00:00
cmake Add -D__STDC_FORMAT_MACROS to use PRIx64. 2011-10-11 12:51:44 +00:00
docs target data is a contract with the code generator, not the "processor" 2011-10-11 23:02:17 +00:00
examples
include Use public accessors on the scope that is returned. 2011-10-11 23:19:35 +00:00
lib Fix -widen-vmovs liveness issues. 2011-10-12 00:06:23 +00:00
projects
runtime Include direct.h for _mkdir on mingw32 too. 2011-10-08 15:49:19 +00:00
test Fix -widen-vmovs liveness issues. 2011-10-12 00:06:23 +00:00
tools llvm-objdump.cpp: Use PRIx64 as format specifier for int64_t. 2011-10-11 12:51:50 +00:00
unittests Fix APInt::operator*= so that it computes the correct result for large integers where there is unsigned overflow. Fix APFloat::toString so that it doesn't depend on the incorrect behavior in common cases (and computes the correct result in some rare cases). Fixes PR11086. 2011-10-07 23:40:49 +00:00
utils Remove extra semicolon. 2011-10-11 19:53:40 +00:00
.gitignore
build-for-llvm-top.sh
CMakeLists.txt Build system infrastructure for multiple tblgens. 2011-10-06 01:51:51 +00:00
configure We're no longer going to bother supporting platforms that don't 2011-09-23 00:53:10 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
Makefile Add clang-tblgen to OPTIONAL_DIRS when building native tools for the 2011-10-08 00:27:38 +00:00
Makefile.common
Makefile.config.in
Makefile.rules Add -D__STDC_FORMAT_MACROS to use PRIx64. 2011-10-11 12:51:44 +00:00
ModuleInfo.txt
README.txt

README.txt 

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