Craig Topper 285da5c731 [X86] Emit a PACKUS instead of a VECTOR_SHUFFLE from LowerTRUNCATE for v16i16->v16i8. ...

We can't guarantee that demanded bits passing through the vector shuffle won't cause the AND in front of this to be removed. This would prevent the PACKUS from being matched during shuffle lowering.

Unfortunately, this adds a packuswb to one of the vector-reduce-mul.ll tests since we were removing the shuffle via SimplifyDemandedVectorElts. We appear to have similar issues with vpmovwb on the same test case on other targets.

llvm-svn: 347361

2018-11-20 22:57:48 +00:00

..

Analysis

[InstSimplify] fold funnel shifts with undef operands

2018-11-20 17:34:59 +00:00

AsmParser

[DebugInfo] DISubprogram flags get their own flags word. NFC.

2018-11-19 18:29:28 +00:00

BinaryFormat

[BinaryFormat] Add MsgPackTypes

2018-11-15 18:50:01 +00:00

Bitcode

[DebugInfo] DISubprogram flags get their own flags word. NFC.

2018-11-19 18:29:28 +00:00

CodeGen

[DAGCombiner] look through bitcasts when trying to narrow vector binops

2018-11-20 22:26:35 +00:00

DebugInfo

[CodeView] Add support for ref-qualified member functions.

2018-11-20 22:13:43 +00:00

Demangle

[MS Demangler] Print public:, protected:, private: if set in FunctionClass or a variable's StorageClass.

2018-11-13 20:18:26 +00:00

ExecutionEngine

[ExecutionEngine][Interpreter] Fix out-of-bounds array access.

2018-11-20 01:01:26 +00:00

Fuzzer

…

FuzzMutate

[New PM] Introducing PassInstrumentation framework

2018-09-20 17:08:45 +00:00

IR

[IR] Add hasNPredecessors, hasNPredecessorsOrMore to BasicBlock

2018-11-19 19:54:27 +00:00

IRReader

…

LineEditor

…

Linker

[ThinLTO] Internalize readonly globals

2018-11-16 07:08:00 +00:00

LTO

[ThinLTO] Internalize readonly globals

2018-11-16 07:08:00 +00:00

MC

[WebAssembly] Remove unused function return types (NFC)

2018-11-20 00:38:10 +00:00

Object

Use llvm::copy. NFC

2018-11-17 01:44:25 +00:00

ObjectYAML

[WebAssembly] Add support for dylink section in object format

2018-11-14 18:36:24 +00:00

Option

[opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>"

2018-10-10 00:15:31 +00:00

OptRemarks

Reland: [OptRemarks] Add library for parsing optimization remarks

2018-10-10 18:43:42 +00:00

Passes

[LTO] Load sample profile in LTO link step.

2018-11-15 18:06:42 +00:00

ProfileData

Support for remapping profile data when symbols change, for sample-based

2018-10-10 21:31:01 +00:00

Support

[APInt] Add methods for saturated add and sub

2018-11-20 16:47:59 +00:00

TableGen

Reverted r347092 due to the following build fails:

2018-11-17 02:26:34 +00:00

Target

[X86] Emit a PACKUS instead of a VECTOR_SHUFFLE from LowerTRUNCATE for v16i16->v16i8.

2018-11-20 22:57:48 +00:00

Testing

Fix error with SmallString implicit conversion.

2018-09-06 22:47:32 +00:00

ToolDrivers

[opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>"

2018-10-10 00:15:31 +00:00

Transforms

[LoopSink] Add preheader to alias set

2018-11-20 16:49:07 +00:00

WindowsManifest

Convert line endings of lib/WindowsManifest/CMakeLists.txt to unix.

2018-04-07 04:28:08 +00:00

XRay

[XRay] Improve FDR trace handling and error messaging

2018-11-09 06:26:48 +00:00

CMakeLists.txt

Reland: [OptRemarks] Add library for parsing optimization remarks

2018-10-10 18:43:42 +00:00

LLVMBuild.txt

Reland: [OptRemarks] Add library for parsing optimization remarks

2018-10-10 18:43:42 +00:00