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Jonathan Roelofs 44937d98a3 Lower thumbv4t & thumbv5 lo->lo copies through a push-pop sequence 
On pre-v6 hardware, 'MOV lo, lo' gives undefined results, so such copies need to
be avoided. This patch trades simplicity for implementation time at the expense
of performance... As they say: correctness first, then performance.

See http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-August/075998.html for a few
ideas on how to make this better.

llvm-svn: 216138
 		2014-08-20 23:38:50 +00:00
..
Analysis Answer to Philip Reames comments 2014-08-18 22:18:14 +00:00
AsmParser Split parseAssembly into parseAssembly and parseAssemblyInto. 2014-08-19 22:05:47 +00:00
Bitcode BitcodeReader: Only create one basic block for each blockaddress 2014-08-16 01:54:37 +00:00
CodeGen [PeepholeOptimizer] Take advantage of the isExtractSubreg property in the 2014-08-20 23:13:02 +00:00
DebugInfo Don't own the buffer in object::Binary. 2014-08-19 18:44:46 +00:00
ExecutionEngine [MCJIT] Allow '$' characters in symbol names in RuntimeDyldChecker. 2014-08-19 20:04:45 +00:00
IR IR: Implement uselistorder assembly directives 2014-08-19 21:30:15 +00:00
IRReader Modernize the .ll parsing interface. 2014-08-19 16:58:54 +00:00
LTO Silencing a -Wcast-qual warning. NFC. 2014-08-20 12:54:13 +00:00
LineEditor [CMake] Use LINK_LIBS instead of target_link_libraries(). 2014-02-26 06:41:29 +00:00
Linker Set comdats when lazily linking functions. 2014-08-15 20:17:08 +00:00
MC Don't allow MCStreamer::EmitIntValue to output 0-byte integers. 2014-08-20 22:46:38 +00:00
Object Fix a pair of use after free. Should bring the bots back. 2014-08-19 18:59:14 +00:00
Option [Option] Support MultiArg in --help 2014-08-15 21:35:07 +00:00
ProfileData Don't own the buffer in object::Binary. 2014-08-19 18:44:46 +00:00
Support Fix undefined behavior (left shift by 64 bits) in ScaledNumber::toString(). 2014-08-20 18:30:07 +00:00
TableGen Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
Target Lower thumbv4t & thumbv5 lo->lo copies through a push-pop sequence 2014-08-20 23:38:50 +00:00
Transforms New InstCombine pattern: (icmp ult/ule (A + C1), C3) | (icmp ult/ule (A + C2), C3) to (icmp ult/ule ((A & ~(C1 ^ C2)) + max(C1, C2)), C3) under certain condition 2014-08-20 22:55:40 +00:00
CMakeLists.txt ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00
LLVMBuild.txt ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00
Makefile ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00