Bruno Cardoso Lopes 65b74e1d00 Add support for 256-bit versions of VPERMIL instruction. This is a new ... instruction introduced in AVX, which can operate on 128 and 256-bit vectors. It considers a 256-bit vector as two independent 128-bit lanes. It can permute any 32 or 64 elements inside a lane, and restricts the second lane to have the same permutation of the first one. With the improved splat support introduced early today, adding codegen for this instruction enable more efficient 256-bit code: Instead of: vextractf128 $0, %ymm0, %xmm0 punpcklbw %xmm0, %xmm0 punpckhbw %xmm0, %xmm0 vinsertf128 $0, %xmm0, %ymm0, %ymm1 vinsertf128 $1, %xmm0, %ymm1, %ymm0 vextractf128 $1, %ymm0, %xmm1 shufps $1, %xmm1, %xmm1 movss %xmm1, 28(%rsp) movss %xmm1, 24(%rsp) movss %xmm1, 20(%rsp) movss %xmm1, 16(%rsp) vextractf128 $0, %ymm0, %xmm0 shufps $1, %xmm0, %xmm0 movss %xmm0, 12(%rsp) movss %xmm0, 8(%rsp) movss %xmm0, 4(%rsp) movss %xmm0, (%rsp) vmovaps (%rsp), %ymm0 We get: vextractf128 $0, %ymm0, %xmm0 punpcklbw %xmm0, %xmm0 punpckhbw %xmm0, %xmm0 vinsertf128 $0, %xmm0, %ymm0, %ymm1 vinsertf128 $1, %xmm0, %ymm1, %ymm0 vpermilps $85, %ymm0, %ymm0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135662 91177308-0d34-0410-b5e6-96231b3b80d8		2011-07-21 01:55:47 +00:00
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Analysis	There are two ways to map a variable to its lexical scope. Lexical scope information is embedded in MDNode describing the variable. It is also available as a part of DebugLoc attached with DBG_VALUE instruction. DebugLoc attached with an instruction is less reliable in optimized code so use information embedded in the MDNode.	2011-07-20 22:18:50 +00:00
Archive	Revert PathV2 changes, as sys::fs::unique_file is not finished yet.	2011-03-01 19:50:55 +00:00
AsmParser	Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ambiguity	2011-07-18 21:45:40 +00:00
Bitcode	Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ambiguity	2011-07-18 21:45:40 +00:00
CodeGen	Refactor.	2011-07-20 23:00:27 +00:00
CompilerDriver	Build CompilerDriver library.	2011-03-12 22:01:42 +00:00
ExecutionEngine	- Move CodeModel from a TargetMachine global option to MCCodeGenInfo.	2011-07-20 07:51:56 +00:00
Linker	Migrate LLVM and Clang to use the new makeArrayRef(...) functions where previously explicit non-default constructors were used.	2011-07-18 12:00:32 +00:00
MC	X86 is the only target that uses coff format. This should fixes test failures running on Windows, Cygwin, or MingW hosts.	2011-07-20 23:53:54 +00:00
Object	ObjectFile: Add a method to check whether a section contains a symbol.	2011-07-15 18:39:21 +00:00
Support	Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ambiguity	2011-07-18 21:45:40 +00:00
Target	Add support for 256-bit versions of VPERMIL instruction. This is a new	2011-07-21 01:55:47 +00:00
Transforms	LSR, correct fix for rdar://9786536. Silly casting bug.	2011-07-21 01:45:54 +00:00
VMCore	Convert ConstantFoldGetElementPtr to use ArrayRef.	2011-07-19 15:30:30 +00:00
CMakeLists.txt	Build CompilerDriver library.	2011-03-12 22:01:42 +00:00
Makefile