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Fork of llvm with experimental commits and workarounds for RPCS3
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Jakob Stoklund Olesen c26e2e6221 Permit remat of partial register defs when it is safe. 
An instruction may define part of a register where the other bits are
undefined. In that case, it is safe to rematerialize the instruction.
For example:

  %vreg2:ssub_0<def> = VLDRS <cp#0>, 0, pred:14, pred:%noreg, %vreg2<imp-def>

The extra <imp-def> operand indicates that the instruction does not read
the other parts of the virtual register, so a remat is safe.

This patch simply allows multiple def operands for the virtual register.
It is MI->readsVirtualRegister() that determines if we depend on a
previous value so remat is impossible.

llvm-svn: 138953
2011-09-01 18:27:51 +00:00
autoconf Update config.sub, config.guess and configure. 2011-08-23 06:43:49 +00:00
bindings Remove the build_unwind function from the OCaml bindings. 2011-08-10 01:10:17 +00:00
cmake CMake: [MSVC] Suppress C4551 'function call missing argument list'. 2011-08-17 01:28:30 +00:00
docs Remove the old tail duplication pass. It is not used and is unable to update 2011-08-30 23:03:45 +00:00
examples Move TargetRegistry and TargetSelect from Target to Support where they belong. 2011-08-24 18:08:43 +00:00
include Remove the old tail duplication pass. It is not used and is unable to update 2011-08-30 23:03:45 +00:00
lib Permit remat of partial register defs when it is safe. 2011-09-01 18:27:51 +00:00
projects Fix a ton of comment typos found by codespell. Patch by 2011-04-15 05:18:47 +00:00
runtime Use version 402 for the GCDA files when compiling for Apple. 2011-07-28 18:12:20 +00:00
test Permit remat of partial register defs when it is safe. 2011-09-01 18:27:51 +00:00
tools Teach macho-dump to dump the uleb128s referred to by linkedit_data segments. 2011-08-30 22:10:58 +00:00
unittests Fix C++0x narrowing errors when char is unsigned. 2011-08-30 20:53:29 +00:00
utils Fix up r137380 based on post-commit review by Jim Grosbach. 2011-09-01 18:02:14 +00:00
website
.gitignore .gitignore: Ignore /autom4te.cache. We can execute "PATH=/path/to/autotools/bin autoconf/AutoRegen.sh". 2011-08-12 07:47:50 +00:00
build-for-llvm-top.sh Patch to build llvm with srcdir != objdir from 2009-01-23 08:42:38 +00:00
CMakeLists.txt Added the infrastructute necessary for MIPS JIT support. Patch by Vladimir 2011-07-21 16:28:51 +00:00
configure Update config.sub, config.guess and configure. 2011-08-23 06:43:49 +00:00
CREDITS.TXT I am the code owner for Clang's IR generation; this has been true 2011-08-02 01:38:19 +00:00
LICENSE.TXT Happy new year. 2011-06-12 15:26:54 +00:00
llvm.spec.in
Makefile Install libprofile_rt.dylib where it's more available for gcov support. 2011-06-10 21:47:14 +00:00
Makefile.common Removed trailing whitespace from Makefiles. 2009-01-09 16:44:42 +00:00
Makefile.config.in build/configure: Add support for --with-extra-ld-options flag (to provide extra 2011-06-16 22:30:38 +00:00
Makefile.rules TableGen'erated MC lowering for simple pseudo-instructions. 2011-07-08 17:36:35 +00:00
ModuleInfo.txt Remove trailing space. This is just an excuse to poke the 2010-10-05 20:32:15 +00:00
README.txt reverting test commit 2011-05-12 17:38:08 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
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