Bob Wilson f74a429816 Overhaul memory barriers in the ARM backend. Radar 8601999. ... There were a number of issues to fix up here: * The "device" argument of the llvm.memory.barrier intrinsic should be used to distinguish the "Full System" domain from the "Inner Shareable" domain. It has nothing to do with using DMB vs. DSB instructions. * The compiler should never need to emit DSB instructions. Remove the ARMISD::SYNCBARRIER node and also remove the instruction patterns for DSB. * Merge the separate DMB/DSB instructions for options only used for the disassembler with the default DMB/DSB instructions. Add the default "full system" option ARM_MB::SY to the ARM_MB::MemBOpt enum. * Add a separate ARMISD::MEMBARRIER_MCR node for subtargets that implement a data memory barrier using the MCR instruction. * Fix up encodings for these instructions (except MCR). I also updated the tests and added a few new ones to check for DMB options that were not currently being exercised. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117756 91177308-0d34-0410-b5e6-96231b3b80d8		2010-10-30 00:54:37 +00:00
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Analysis	Make ScalarEvolution::forgetLoop forget all contained loops too, because	2010-10-29 20:16:10 +00:00
Archive	Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."	2010-09-13 23:59:48 +00:00
AsmParser	Add a new 'hotpatch' attribute. This attribute will insert a two-byte no-op	2010-10-25 15:37:09 +00:00
Bitcode	Fix PR8494: when reading invalid bitcode, getTypeByID may return	2010-10-28 15:47:26 +00:00
CodeGen	Teach machine cse to eliminate instructions with multiple physreg uses and defs. rdar://8610857.	2010-10-29 23:36:03 +00:00
CompilerDriver	llvmc: Make ExecuteProgram() look in the driver directory first.	2010-10-28 19:33:08 +00:00
ExecutionEngine	Move the remaining attribute macros to systematic names based on the attribute	2010-10-23 08:40:19 +00:00
Linker	Fix PR8300 by remembering to keep the bitcast in all cases.	2010-10-19 02:02:57 +00:00
MC	Be more strict on when we produce an undefined reference. In gas a file with	2010-10-29 23:09:31 +00:00
Support	Fix these error messages to be less confusing. These error	2010-10-29 17:03:40 +00:00
System	Check if ErrMsg is null. This fixes the "not" command.	2010-10-29 17:20:42 +00:00
Target	Overhaul memory barriers in the ARM backend. Radar 8601999.	2010-10-30 00:54:37 +00:00
Transforms	Clean up indentation and other whitespace.	2010-10-29 22:20:45 +00:00
VMCore	Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support.	2010-10-29 17:29:13 +00:00
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