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Roman Lebedev 2835b332d2 [X86] X86DAGToDAGISel::matchBitExtract(): prepare 'control' in 32 bits 
Summary:
Noticed while looking at D56052.
```
  // The 'control' of BEXTR has the pattern of:
  // [15...8 bit][ 7...0 bit] location
  // [ bit count][     shift] name
  // I.e. 0b000000011'00000001 means  (x >> 0b1) & 0b11
```
I.e. we do not care about any of the bits aside from the low 16 bits.
So there is no point in doing the `slh`,`or` in 64 bits,
let's just do everything in 32 bits, and anyext if needed.

We could do that in 16 even, but we intentionally don't
zext to i16 (longer encoding IIRC),
so i'm guessing the same applies here.

Reviewers: craig.topper, andreadb, RKSimon

Reviewed By: craig.topper

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D56715

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353073 91177308-0d34-0410-b5e6-96231b3b80d8
2019-02-04 19:04:26 +00:00
..
Analysis
Adjust cardinality of internal inliner thresholds
2019-02-04 18:46:25 +00:00
AsmParser
Revert "[Sanitizers] UBSan unreachable incompatible with ASan in the presence of noreturn calls"
2019-01-24 18:04:21 +00:00
BinaryFormat
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Bitcode
[opaque pointer types] Pass value type to GetElementPtr creation.
2019-02-01 20:44:47 +00:00
CodeGen
GlobalISel: Fix moreElementsToNextPow2
2019-02-04 18:42:24 +00:00
DebugInfo
[DebugInfo] Don't use realpath when looking up debug binary locations.
2019-02-01 21:04:16 +00:00
Demangle
Add missing include (cstdlib) to Demangle.h
2019-01-22 19:18:18 +00:00
ExecutionEngine
[opaque pointer types] Pass value type to LoadInst creation.
2019-02-01 20:44:24 +00:00
Fuzzer
[libFuzzer] Delete llvm/lib/Fuzzer
2017-10-16 20:48:19 +00:00
FuzzMutate
[opaque pointer types] Pass value type to LoadInst creation.
2019-02-01 20:44:24 +00:00
IR
[Intrinsic] Unsigned Fixed Point Multiplication Intrinsic
2019-02-04 17:18:11 +00:00
IRReader
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
LineEditor
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Linker
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
LTO
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
MC
[WebAssembly] Make segment/size/type directives optional in asm
2019-02-04 18:03:11 +00:00
MCA
[MC][X86] Correctly model additional operand latency caused by transfer delays from the integer to the floating point unit.
2019-01-23 16:35:07 +00:00
Object
[WebAssembly] Rename relocations from R_WEBASSEMBLY_ to R_WASM_
2019-02-04 17:28:46 +00:00
ObjectYAML
[COFF] Add new relocation types.
2019-01-27 19:53:36 +00:00
Option
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
OptRemarks
Update more file headers across all of the LLVM projects in the monorepo
2019-01-19 10:56:40 +00:00
Passes
Default lowering for experimental.widenable.condition
2019-01-31 09:10:17 +00:00
ProfileData
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Support
[CommandLine] Don't print empty sentinel values from EnumValN lists in help text
2019-02-04 16:17:57 +00:00
TableGen
[TblGen] Extend !if semantics through new feature !cond
2019-01-25 10:25:25 +00:00
Target
[X86] X86DAGToDAGISel::matchBitExtract(): prepare 'control' in 32 bits
2019-02-04 19:04:26 +00:00
Testing
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
TextAPI
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
ToolDrivers
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Transforms
[NFC] Make a check in GuardWidening more obvious
2019-02-04 10:41:17 +00:00
WindowsManifest
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
XRay
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
CMakeLists.txt
[llvm-mca] Move llvm-mca library to llvm/lib/MCA.
2018-12-17 08:08:31 +00:00
LLVMBuild.txt
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00