Reed Kotler a430cb613b This patch enables llvm to switch between compiling for mips32/mips64 ... and mips16 on a per function basis. Because this patch is somewhat involved I have provide an overview of the key pieces of it. The patch is written so as to not change the behavior of the non mixed mode. We have tested this a lot but it is something new to switch subtargets so we don't want any chance of regression in the mainline compiler until we have more confidence in this. Mips32/64 are very different from Mip16 as is the case of ARM vs Thumb1. For that reason there are derived versions of the register info, frame info, instruction info and instruction selection classes. Now we register three separate passes for instruction selection. One which is used to switch subtargets (MipsModuleISelDAGToDAG.cpp) and then one for each of the current subtargets (Mips16ISelDAGToDAG.cpp and MipsSEISelDAGToDAG.cpp). When the ModuleISel pass runs, it determines if there is a need to switch subtargets and if so, the owning pointers in MipsTargetMachine are appropriately changed. When 16Isel or SEIsel is run, they will return immediately without doing any work if the current subtarget mode does not apply to them. In addition, MipsAsmPrinter needs to be reset on a function basis. The pass BasicTargetTransformInfo is substituted with a null pass since the pass is immutable and really needs to be a function pass for it to be used with changing subtargets. This will be fixed in a follow on patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179118 91177308-0d34-0410-b5e6-96231b3b80d8		2013-04-09 19:46:01 +00:00
..
Analysis	X86 cost model: Model cost for uitofp and sitofp on SSE2	2013-04-08 18:05:48 +00:00
Archive
Assembler	Correct invalid debug info metadata	2013-03-12 19:04:24 +00:00
Bindings/Ocaml	Use the attribute group reference instead of the attribute directly.	2013-02-20 07:48:23 +00:00
Bitcode	Unify clang/llvm attributes for asan/tsan/msan (LLVM part)	2013-02-26 06:58:09 +00:00
BugPoint
CodeGen	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
DebugInfo	The .dwo section shouldn't contain the unrelocated values (and	2013-04-09 19:23:15 +00:00
ExecutionEngine	Rewrite test/ExecutionEngine tests to use FileCheck instead of grep	2013-04-08 19:51:36 +00:00
Feature	Modify the LLVM assembly output so that it uses references to represent function attributes.	2013-02-20 07:21:42 +00:00
FileCheck	Canonicalize line endings to Linux style also when the --strict-whitespace flag is in use. This flag is supposed to affect horizontal whitespaces only.	2013-02-06 20:40:38 +00:00
Instrumentation	[tsan] make sure memset/memcpy/memmove are not inlined in tsan mode	2013-03-28 11:21:13 +00:00
Integer	Rewrite test/Integer tests to use FileCheck instead of grep	2013-04-08 20:18:15 +00:00
JitListener	Add support for source and line information to IntelJITEventListener for object emitted by MCJIT.	2013-01-28 19:52:37 +00:00
Linker	Rewrite test/Linker tests to use FileCheck instead of grep.	2013-04-09 16:51:13 +00:00
MC	[ms-inline asm] Add support for numeric displacement expressions in bracketed	2013-04-05 16:28:55 +00:00
Object	Add a test for obj2yaml in preparation for refactoring it.	2013-04-05 02:02:05 +00:00
Other	Check isDiscardableIfUnused, rather than hasLocalLinkage, when bumping	2013-03-04 22:40:44 +00:00
Scripts	Set the +x bit on two batch scripts	2013-01-25 22:12:50 +00:00
TableGen	Allow TableGen DAG arguments to be just a name.	2013-03-24 19:36:51 +00:00
tools	Don't fetch pointers from a InMemoryStruct.	2013-04-05 15:15:22 +00:00
Transforms	Add support for bottom-up SLP vectorization infrastructure.	2013-04-09 19:44:35 +00:00
Unit	Propagate path to ASan/MSan symbolizer into test environment to produce useful reports on errors.	2013-04-04 07:41:00 +00:00
Verifier	Rewrite test/Verifier tests to use FileCheck instead of grep	2013-04-08 18:33:51 +00:00
YAMLParser
CMakeLists.txt	Add obj2yaml to test dependencies	2013-04-05 07:26:37 +00:00
lit.cfg	Propagate path to ASan/MSan symbolizer into test environment to produce useful reports on errors.	2013-04-04 07:41:00 +00:00
lit.site.cfg.in	Add asan/msan to the list of available features in LIT test runner	2013-03-26 08:27:39 +00:00
Makefile	Reverted r176374. In some cases the lit.site.cfg file does not get generated in tools/clang/tools/extra.	2013-03-22 18:54:14 +00:00
Makefile.tests
TestRunner.sh