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llvm-6502/lib
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Pranav Bhandarkar 4c3d3ecdf8 LLVM Bug Fix 13709: Remove needless lsr(Rp, #32) instruction access the 
subreg_hireg of register pair Rp.

	* lib/Target/Hexagon/HexagonPeephole.cpp(PeepholeDoubleRegsMap): New
	 DenseMap similar to PeepholeMap that additionally records subreg info
	 too.
        (runOnMachineFunction): Record information in PeepholeDoubleRegsMap
        and copy propagate the high sub-reg of Rp0 in Rp1 = lsr(Rp0, #32) to
	the instruction Rx = COPY Rp1:logreg_subreg.
	* test/CodeGen/Hexagon/remove_lsr.ll: New test.
	



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163214 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05 16:01:40 +00:00
..
Analysis Be conservative about allocations that may alias the accessed pointer. 2012-09-04 03:30:13 +00:00
Archive Remove references to compression in llvm-ar. It has been a long time since we 2012-08-10 01:57:52 +00:00
AsmParser [ms-inline asm] Add the nsdialect keyword to the lexer. 2012-09-05 00:51:02 +00:00
Bitcode Add a FIXME that assumes we maintain backward compatibility until the next major release. 2012-09-05 06:28:52 +00:00
CodeGen Fixed the DAG combiner to better handle the folding of AND nodes for vector types. The previous code was making the assumption that the length of the bitmask returned by isConstantSplat was equal to the size of the vector type. Now we first make sure that the splat value has at least the length of the vector lane type, then we only use as many fields as we have available in the splat value. 2012-09-05 08:57:21 +00:00
DebugInfo Add support for fetching inlining context (stack of source code locations) 2012-09-04 08:12:33 +00:00
ExecutionEngine Fix comment for function RuntimeDyldImpl.resolveRelocation() 2012-08-27 15:34:01 +00:00
Linker Move the "findUsedStructTypes" functionality outside of the Module class. 2012-08-03 00:30:35 +00:00
MC Allow targets to specify a minimum supported NOP size when performing NOP padding. If the desired padding is smaller than the supported NOP size, 2012-08-29 22:18:56 +00:00
Object Reverting r 160419. 2012-07-19 21:43:55 +00:00
Support Fix Android build of gtest and lib/Support. 2012-09-04 09:14:45 +00:00
TableGen Tristate mayLoad, mayStore, and hasSideEffects. 2012-08-23 19:34:46 +00:00
Target LLVM Bug Fix 13709: Remove needless lsr(Rp, #32) instruction access the 2012-09-05 16:01:40 +00:00
Transforms [asan] fix lint 2012-09-05 09:00:18 +00:00
VMCore [ms-inline asm] Emit the (new) inline asm Non-Standard Dialect attribute. 2012-09-05 00:08:17 +00:00
CMakeLists.txt
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile