Craig Topper 363e0abfa5 [AVX-512] Add support for changing VSHUFF64x2 to VSHUFF32x4 when its feeding a vselect with 32-bit element size. ...

Summary:
Shuffle lowering may have widened the element size of a i32 shuffle to i64 before selecting X86ISD::SHUF128. If this shuffle was used by a vselect this can prevent us from selecting masked operations.

This patch detects this and changes the element size to match the vselect.

I don't handle changing integer to floating point or vice versa as its not clear if its better to push such a bitcast to the inputs of the shuffle or to the user of the vselect. So I'm ignoring that case for now.

Reviewers: delena, zvi, RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D27087

llvm-svn: 287939

2016-11-25 16:48:05 +00:00

..

Analysis

[PM] Change the static object whose address is used to uniquely identify

2016-11-23 17:53:26 +00:00

AsmParser

[AsmParser] Avoid recursing when lexing ';'. NFC.

2016-11-16 22:25:05 +00:00

Bitcode

[CMake] NFC. Updating CMake dependency specifications

2016-11-17 04:36:50 +00:00

CodeGen

[DAGCombine] Teach DAG combine that if both inputs of a vselect are the same, then the condition doesn't matter and the vselect can be removed.

2016-11-24 21:48:52 +00:00

DebugInfo

[DebugInfo] Fix some Clang-tidy modernize-use-default and Include What You Use warnings; other minor fixes (NFC).

2016-11-23 23:16:32 +00:00

Demangle

Demangle: remove references to allocator for default allocator

2016-11-20 00:20:27 +00:00

ExecutionEngine

Fix comment typos. NFC.

2016-11-20 13:47:59 +00:00

Fuzzer

[libFuzzer] replace 'auto' with 'auto *' to better follow the LLVM style

2016-11-14 19:21:38 +00:00

IR

[PM] Change the static object whose address is used to uniquely identify

2016-11-23 17:53:26 +00:00

IRReader

Timer: Track name and description.

2016-11-18 19:43:18 +00:00

LibDriver

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LineEditor

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Linker

[ThinLTO] Fix crash when importing an opaque type

2016-11-19 18:44:16 +00:00

LTO

[lib/LTO] Rename few instances of Lto to LTO.

2016-11-24 00:23:09 +00:00

MC

MC: ensure that we have a section before accessing it

2016-11-22 04:32:54 +00:00

Object

Object: Add IRObjectFile::getTargetTriple().

2016-11-24 01:13:09 +00:00

ObjectYAML

Fix Clang-tidy readability-redundant-string-cstr warnings

2016-11-02 16:43:50 +00:00

Option

Generalize ArgList::AddAllArgs more

2016-09-29 19:47:58 +00:00

Passes

[PM] Change the static object whose address is used to uniquely identify

2016-11-23 17:53:26 +00:00

ProfileData

Make the Error class constructor protected

2016-11-11 04:28:40 +00:00

Support

Revert "[Triple] Add Facebook vendor"

2016-11-23 19:03:54 +00:00

TableGen

TableGen: Add operator !or

2016-11-15 06:49:28 +00:00

Target

[AVX-512] Add support for changing VSHUFF64x2 to VSHUFF32x4 when its feeding a vselect with 32-bit element size.

2016-11-25 16:48:05 +00:00

Transforms

[Loop Unswitch] Patch to selective unswitch only the reachable branch instructions.

2016-11-25 14:07:44 +00:00

CMakeLists.txt

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LLVMBuild.txt

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