Ahmed Bougacha ac655060b4 [ARM] Look through concat when lowering in-place shuffles (VZIP, ..) ...

Currently, we canonicalize shuffles that produce a result larger than
their operands with:
  shuffle(concat(v1, undef), concat(v2, undef))
->
  shuffle(concat(v1, v2), undef)

because we can access quad vectors (see PerformVECTOR_SHUFFLECombine).

This is useful in the general case, but there are special cases where
native shuffles produce larger results: the two-result ops.

We can look through the concat when lowering them:
  shuffle(concat(v1, v2), undef)
->
  concat(VZIP(v1, v2):0, :1)

This lets us generate the native shuffles instead of scalarizing to
dozens of VMOVs.

Differential Revision: http://reviews.llvm.org/D10424


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240118 91177308-0d34-0410-b5e6-96231b3b80d8

2015-06-19 02:32:35 +00:00

..

Analysis

Fix "the the" in comments.

2015-06-19 01:53:21 +00:00

AsmParser

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

Bitcode

[Bitcode] Replace hand-coded little endian handling with Endian.h functions.

2015-06-17 20:55:30 +00:00

CodeGen

Fix "the the" in comments.

2015-06-19 01:53:21 +00:00

DebugInfo

[DWARF] Fix a bug in line info handling

2015-05-31 23:37:04 +00:00

ExecutionEngine

modules: Add explicit dependency on intrinsics_gen

2015-06-16 00:44:12 +00:00

Fuzzer

[lib/Fuzzer] make assertions more informative and update comments for the user-supplied mutator

2015-05-30 17:33:13 +00:00

IR

IRBuilder: Allow globals to be constructed in a specific address space

2015-06-19 02:12:07 +00:00

IRReader

Return a unique_ptr from getLazyBitcodeModule and parseBitcodeFile. NFC.

2015-06-16 22:27:55 +00:00

LibDriver

Bring in a BumpPtrStringSaver from lld and simplify the interface.

2015-06-13 12:49:52 +00:00

LineEditor

Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects.

2015-02-11 03:28:02 +00:00

Linker

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

LTO

Return a unique_ptr from getLazyBitcodeModule and parseBitcodeFile. NFC.

2015-06-16 22:27:55 +00:00

MC

[MC] Adding prettyPrintAsm to MCTargetStreamer to allow targets to specialize how instructions are printed to asm.

2015-06-18 20:43:22 +00:00

Object

Improve the --expand-relocs handling of MachO.

2015-06-18 22:38:20 +00:00

Option

Option parsing: properly handle flag aliases for joined options (PR23394)

2015-05-04 18:00:13 +00:00

Passes

[PM] Fixup for r231556 where I missed a dependency on intrinsics

2015-03-07 09:08:20 +00:00

ProfileData

modules: Add explicit dependency on intrinsics_gen

2015-06-16 00:44:12 +00:00

Support

Fix "the the" in comments.

2015-06-19 01:53:21 +00:00

TableGen

[TableGen] Change OpInit::getNumOperands and getOperand to use unsigned integers. NFC

2015-06-06 01:34:04 +00:00

Target

[ARM] Look through concat when lowering in-place shuffles (VZIP, ..)

2015-06-19 02:32:35 +00:00

Transforms

Fix "the the" in comments.

2015-06-19 01:53:21 +00:00

CMakeLists.txt

LibDriver, llvm-lib: introduce.

2015-06-09 21:50:22 +00:00

LLVMBuild.txt

Wrap some long lines in LLVMBuild files. NFC

2015-06-12 18:44:57 +00:00

Makefile

LibDriver, llvm-lib: introduce.

2015-06-09 21:50:22 +00:00