Andrea Di Biagio 3957d4245f [X86] Improve the lowering of BITCAST from MVT::f64 to MVT::v4i16/MVT::v8i8. ...

This patch teaches the x86 backend how to efficiently lower ISD::BITCAST dag
nodes from MVT::f64 to MVT::v4i16 (and vice versa), and from MVT::f64 to
MVT::v8i8 (and vice versa).

This patch extends the logic from revision 208107 to also handle MVT::v4i16
and MVT::v8i8. Also, this patch correctly propagates Undef values when
performing the widening of a vector (example: when widening from v2i32 to
v4i32, the upper 64bits of the resulting vector are 'undef').



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209451 91177308-0d34-0410-b5e6-96231b3b80d8

2014-05-22 16:21:39 +00:00

..

Analysis

Fix a bug in SCEV's backedge taken count computation from my prior fix in Jan.

2014-05-22 00:37:03 +00:00

AsmParser

[modules] Add module maps for LLVM. These are not quite ready for prime-time

2014-05-21 02:46:14 +00:00

Bitcode

[modules] Add module maps for LLVM. These are not quite ready for prime-time

2014-05-21 02:46:14 +00:00

CodeGen

Remove unused variable.

2014-05-22 05:33:03 +00:00

DebugInfo

[modules] Add module maps for LLVM. These are not quite ready for prime-time

2014-05-21 02:46:14 +00:00

ExecutionEngine

[RuntimeDyld] Fix x86-64 MachO GOT relocation handling.

2014-05-19 19:21:25 +00:00

IR

Add support for missed and analysis optimization remarks.

2014-05-22 14:19:46 +00:00

IRReader

[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.

2014-04-15 06:32:26 +00:00

LineEditor

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Linker

Use create methods since msvc doesn't handle delegating constructors.

2014-05-17 21:29:57 +00:00

LTO

Delete getAliasedGlobal.

2014-05-16 22:37:03 +00:00

MC

MC: initialise MCAsmParser variable

2014-05-22 06:02:59 +00:00

Object

Update MachOObjectFile::getSymbolAddress so it returns UnknownAddressOrSize

2014-05-20 23:04:47 +00:00

Option

Options: Use erase_if to remove Args from the list.

2014-05-18 15:14:13 +00:00

ProfileData

ProfileData: Allow multiple profiles in RawInstrProfReader

2014-05-16 00:38:00 +00:00

Support

Extend sys::getHostCPUFeatures to work on AArch64 platforms

2014-05-22 11:44:34 +00:00

TableGen

[modules] Add module maps for LLVM. These are not quite ready for prime-time

2014-05-21 02:46:14 +00:00

Target

[X86] Improve the lowering of BITCAST from MVT::f64 to MVT::v4i16/MVT::v8i8.

2014-05-22 16:21:39 +00:00

Transforms

Add support for missed and analysis optimization remarks.

2014-05-22 14:19:46 +00:00

CMakeLists.txt

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LLVMBuild.txt

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Makefile

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