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Andrew Trick d3f8fe81f4 RegAlloc superpass: includes phi elimination, coalescing, and scheduling. 
Creates a configurable regalloc pipeline.

Ensure specific llc options do what they say and nothing more: -reglloc=... has no effect other than selecting the allocator pass itself. This patch introduces a new umbrella flag, "-optimize-regalloc", to enable/disable the optimizing regalloc "superpass". This allows for example testing coalscing and scheduling under -O0 or vice-versa.

When a CodeGen pass requires the MachineFunction to have a particular property, we need to explicitly define that property so it can be directly queried rather than naming a specific Pass. For example, to check for SSA, use MRI->isSSA, not addRequired<PHIElimination>.

CodeGen transformation passes are never "required" as an analysis

ProcessImplicitDefs does not require LiveVariables.

We have a plan to massively simplify some of the early passes within the regalloc superpass.

llvm-svn: 150226
 		2012-02-10 04:10:36 +00:00
..
bugpoint Allow bugpoint to recognize -bb-vectorize 2012-02-07 21:11:12 +00:00
bugpoint-passes build: Tidy up a bunch of tool Makefiles, and simplify where possible using the 2011-10-18 19:27:24 +00:00
gold drop unneeded config.h includes 2011-12-22 23:04:07 +00:00
llc RegAlloc superpass: includes phi elimination, coalescing, and scheduling. 2012-02-10 04:10:36 +00:00
lli Adding a basic ELF dynamic loader and MC-JIT for ELF. Functionality is currently basic and will be enhanced with future patches. 2012-01-16 08:56:09 +00:00
llvm-ar LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
llvm-as LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
llvm-bcanalyzer Enable streaming of bitcode 2012-02-06 22:30:29 +00:00
llvm-config llvm-config: Add support for CMake build trees in which the build 2012-01-26 01:31:38 +00:00
llvm-cov LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
llvm-diff SwitchInst refactoring. 2012-02-01 07:49:51 +00:00
llvm-dis Enable streaming of bitcode 2012-02-06 22:30:29 +00:00
llvm-dwarfdump LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
llvm-extract Remove extraneous ".get()->" which is just "->". No functionality change. 2011-12-30 19:17:23 +00:00
llvm-ld Add a basic-block autovectorization pass. 2012-02-01 03:51:43 +00:00
llvm-link LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
llvm-mc Enable streaming of bitcode 2012-02-06 22:30:29 +00:00
llvm-nm Remove unused variables. 2011-12-25 01:20:19 +00:00
llvm-objdump Enable streaming of bitcode 2012-02-06 22:30:29 +00:00
llvm-prof LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
llvm-ranlib LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
llvm-rtdyld Remove unreachable code. (replace with llvm_unreachable to help GCC where necessary) 2012-01-17 04:43:56 +00:00
llvm-shlib build: Tidy up a bunch of tool Makefiles, and simplify where possible using the 2011-10-18 19:27:24 +00:00
llvm-size LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
llvm-stub LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
lto reapply the patches reverted in r149470 that reenable ConstantDataArray, 2012-02-05 02:29:43 +00:00
macho-dump LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
opt Add a basic-block autovectorization pass. 2012-02-01 03:51:43 +00:00
CMakeLists.txt Have cmake build llvm-cov. Patch by arrowdodger. 2011-12-07 20:54:41 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile llvm-config: Replace with C++ version (was llvm-config-2). 2011-12-01 20:18:09 +00:00