Intel® oneAPI DPC++/C++ Compiler Developer Guide and Reference

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Date 3/22/2024
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Document Table of Contents x
Intel® oneAPI DPC++/C++ Compiler Developer Guide and Reference
Intel® oneAPI DPC++/C++ Compiler Developer Guide and Reference x
Intel® oneAPI DPC++/C++ Compiler Introduction Compiler Setup Compiler Reference Compilation Optimization and Programming Compatibility and Portability Notices and Disclaimers
Intel® oneAPI DPC++/C++ Compiler Introduction x
Get Help and Support Related Information
Compiler Setup x
Use the Command Line Use Eclipse Use Microsoft Visual Studio
Use the Command Line x
Specify Component Locations Invoke the Compiler Use the Command Line on Windows File Extensions Use Makefiles for Compilation Use CMake with the Compiler Use Compiler Options Specify Compiler Files Convert Projects to Use a Selected Compiler
Use Eclipse x
Add the Compiler to Eclipse Multiversion Compiler Support Use Cheat Sheets Create a Simple Eclipse Project Makefiles Use Intel Libraries with Eclipse
Use Microsoft Visual Studio x
Create a New Project Use the Intel® oneAPI DPC++/C++ Compiler Select the Compiler Version Specify a Base Platform Toolset Use Property Pages Use Intel® Libraries with Microsoft Visual Studio* Include MPI Support Dialog Box Help
Dialog Box Help x
Use Intel® oneAPI DPC++/C++ Compiler dialog box Hardware Profile-Guided Optimization dialog box Options: Compilers dialog box Options: Intel Libraries for oneAPI dialog box
Compiler Reference x
C/C++/SYCL Calling Conventions Compiler Options Floating-Point Operations Attributes Intrinsics Libraries Macros Pragmas Syntactic and Semantic Errors
Compiler Options x
Alphabetical Option List General Rules for Compiler Options What Appears in the Compiler Option Descriptions Optimization Options Code Generation Options Interprocedural Optimization Options Advanced Optimization Options Profile Guided Optimization Options Optimization Report Options Offload Compilation, OpenMP*, and Parallel Processing Options Floating-Point Options Inlining Options Output, Debug, and Precompiled Header Options Preprocessor Options Component Control Options Language Options Data Options Compiler Diagnostic Options Compatibility Options Linking or Linker Options Miscellaneous Options Deprecated and Removed Compiler Options Display Option Information Alternate Compiler Options Portability and GCC-Compatible Warning Options
Optimization Options x
fast fbuiltin, Oi foptimize-sibling-calls GF nolib-inline O Od Ofast Os Ot Ox
Code Generation Options x
arch ax, Qax EH fasynchronous-unwind-tables fcf-protection, Qcf-protection fdata-sections, Gw fexceptions ffunction-sections, Gy fomit-frame-pointer Gd GR guard Gv m, Qm m64, Qm64 m80387 march masm mauto-arch, Qauto-arch mbranches-within-32B-boundaries, Qbranches-within-32B-boundaries mintrinsic-promote, Qintrinsic-promote momit-leaf-frame-pointer mtune, tune regcall, Qregcall x, Qx xHost, QxHost
Interprocedural Optimization Options x
flto ipo, Qipo
Advanced Optimization Options x
ffreestanding, Qfreestanding fjump-tables fvec-peel-loops, Qvec-peel-loops fvec-remainder-loops, Qvec-remainder-loops fvec-with-mask, Qvec-with-mask ipp-link, Qipp-link mno-gather, Qgather- mno-scatter, Qscatter- qactypes, Qactypes qdaal, Qdaal qipp, Qipp qmkl, Qmkl qmkl-ilp64, Qmkl-ilp64 qopt-assume-no-loop-carried-dep, Qopt-assume-no-loop-carried-dep qopt-dynamic-align, Qopt-dynamic-align qopt-for-throughput, Qopt-for-throughput qopt-mem-layout-trans, Qopt-mem-layout-trans qopt-multiple-gather-scatter-by-shuffles, Qopt-multiple-gather-scatter-by-shuffles qopt-prefetch, Qopt-prefetch qopt-prefetch-distance, Qopt-prefetch-distance qopt-prefetch-loads-only, Qopt-prefetch-loads-only qopt-streaming-stores, Qopt-streaming-stores qtbb, Qtbb unroll, Qunroll vec, Qvec vec-threshold, Qvec-threshold vecabi, Qvecabi
Profile Guided Optimization Options x
fprofile-dwo-dir fprofile-ml-use fprofile-sample-generate fprofile-sample-use
Optimization Report Options x
qopt-report, Qopt-report qopt-report-file, Qopt-report-file qopt-report-stdout, Qopt-report-stdout
Offload Compilation, OpenMP*, and Parallel Processing Options x
device-math-lib fintelfpga fiopenmp, Qiopenmp flink-huge-device-code fno-sycl-libspirv foffload-static-lib fopenmp fopenmp-concurrent-host-device-compile, Qopenmp-concurrent-host-device-compile fopenmp-declare-target-scalar-defaultmap, Qopenmp-declare-target-scalar-defaultmap fopenmp-device-code-split, Qopenmp-device-code-split fopenmp-device-lib fopenmp-max-parallel-link-jobs, Qopenmp-max-parallel-link-jobs fopenmp-target-buffers, Qopenmp-target-buffers fopenmp-target-loopopt, Qopenmp-target-loopopt fopenmp-target-simd, Qopenmp-target-simd fopenmp-targets, Qopenmp-targets fsycl fsycl-add-targets fsycl-dead-args-optimization fsycl-device-code-split fsycl-device-lib fsycl-device-obj fsycl-device-only fsycl-early-optimizations fsycl-enable-function-pointers fsycl-esimd-force-stateless-mem fsycl-explicit-simd fsycl-force-target fsycl-help fsycl-host-compiler fsycl-host-compiler-options fsycl-id-queries-fit-in-int fsycl-instrument-device-code fsycl-link fsycl-link-huge-device-code fsycl-link-targets fsycl-max-parallel-link-jobs fsycl-optimize-non-user-code fsycl-pstl-offload fsycl-rdc fsycl-targets fsycl-unnamed-lambda fsycl-use-bitcode ftarget-compile-fast ftarget-export-symbols ftarget-register-alloc-mode, Qtarget-register-alloc-mode nolibsycl qopenmp, Qopenmp qopenmp-link qopenmp-simd, Qopenmp-simd qopenmp-stubs, Qopenmp-stubs reuse-exe Wno-sycl-strict Xopenmp-target Xs Xsycl-target
Floating-Point Options x
ffp-contract fimf-absolute-error, Qimf-absolute-error fimf-accuracy-bits, Qimf-accuracy-bits fimf-arch-consistency, Qimf-arch-consistency fimf-domain-exclusion, Qimf-domain-exclusion fimf-max-error, Qimf-max-error fimf-precision, Qimf-precision fimf-use-svml, Qimf-use-svml fma, Qfma fp-model, fp fp-speculation, Qfp-speculation ftz, Qftz pc, Qpc
Inlining Options x
fgnu89-inline finline finline-functions
Output, Debug, and Precompiled Header Options x
c debug (Linux*) debug (Windows*) Fa fasm-blocks Fe Fo Fp fverbose-asm g gdwarf grecord-gcc-switches gsplit-dwarf o S use-msasm Y- Yc Yu Zi, Z7, ZI
Preprocessor Options x
B C D dD, QdD dM, QdM E EP FI H, QH I idirafter imacros iprefix iquote isystem iwithprefix iwithprefixbefore M, QM MD, QMD MF, QMF MG, QMG MM, QMM MMD, QMMD MQ, QMQ MT, QMT nostdinc++ P TP U undef X
Component Control Options x
Qoption
Language Options x
ansi fno-gnu-keywords fno-operator-names fno-rtti fpermissive fshort-enums fsyntax-only, Zs funsigned-char, J std, Qstd strict-ansi vd vmg x (type option) Zc Zg Zp
Data Options x
fcommon fkeep-static-consts, Qkeep-static-consts fmath-errno fpack-struct fpic fpie fstack-protector fstack-security-check fvisibility fzero-initialized-in-bss, Qzero-initialized-in-bss GA Gs GS mcmodel Qlong-double
Compiler Diagnostic Options x
w W Wabi Wall Wcheck-unicode-security Wcomment Wdeprecated Werror, WX Werror-all Wextra-tokens Wformat Wformat-security Wmain Wmissing-declarations Wmissing-prototypes Wpointer-arith Wreorder Wreturn-type Wshadow Wsign-compare Wstrict-aliasing Wstrict-prototypes Wtrigraphs Wuninitialized Wunknown-pragmas Wunused-function Wunused-variable Wwrite-strings
Compatibility Options x
gcc-toolchain vmv
Linking or Linker Options x
F (Windows*) fixed fortlib fuse-ld l L LD link MD MT nodefaultlibs no-intel-lib, Qno-intel-lib nostartfiles nostdlib pie pthread shared shared-intel shared-libgcc static static-intel static-libgcc static-libstdc++ T u (Linux*) v Wa Wl Wp Xlinker Zl
Miscellaneous Options x
dryrun dumpmachine dumpversion fpreview-breaking-changes help nologo save-temps, Qsave-temps showIncludes sox, Qsox sysroot Tc TC Tp version
Floating-Point Operations x
Programming Tradeoffs in Floating-Point Applications Floating-Point Optimizations Denormal Numbers Floating-Point Environment Set the FTZ and DAZ Flags Tuning Performance IEEE Floating-Point Operations
Attributes x
align align_value allow_cpu_features code_align const cpu_dispatch, cpu_specific target
Libraries x
Create Libraries Use Intel Shared Libraries on Linux Manage Libraries Redistribute Libraries When Deploying Applications Resolve References to Shared Libraries Redistributable Library Considerations Sanitizers Intel's Memory Allocator Library SIMD Data Layout Templates Intel® C++ Class Libraries Intel's C++ Asynchronous I/O Extensions for Windows IEEE 754-2008 Binary Floating-Point Conformance Library Intel's Numeric String Conversion Library
SIMD Data Layout Templates x
Function Calls and Containers User-Level Interface Examples
Function Calls and Containers x
Construct an n_container Bounds
User-Level Interface x
SDLT Primitives soa1d_container aos1d_container n_container Bounds Accessors Proxy Objects Number Representation Indexes Convenience and Correctness
aos1d_container x
access_by
n_container x
Layouts Shape make_ n_container template function extent_d template function
Shape x
n_extent_generator
Bounds x
bounds_t sdlt::bounds Template Function n_bounds_t n_bounds_generator bounds_d Template Function
Accessors x
soa1d_container::accessor and aos1d_container::accessor soa1d_container::const_accessor and aos1d_container::const_accessor Accessor Concept
Proxy Objects x
Proxy ConstProxy
Number Representation x
aligned_offset fixed_offset
Indexes x
linear_index n_index_t n_index_generator index_d template function
Convenience and Correctness x
max_val min_val
Examples x
Efficiency with Structure of Arrays Example Complex SDLT Primitive Construction Example Forward Dependency Example Use of Offsets and Methods on a SDLT Primitive Example RGB to YUV Conversion Example
Intel® C++ Class Libraries x
C++ Classes and SIMD Operations Capabilities of C++ SIMD Classes Integer Vector Classes Floating-Point Vector Classes Classes Quick Reference Logical Operations Arithmetic Operations Shift Operations Comparison Operations Conditional Select Operations Packing and Unpacking Operations Conversions Operations Programming Example Intel's valarray Implementation
Integer Vector Classes x
Terms and Syntax Rules for Operators Assignment Operator Logical Operators Addition and Subtraction Operators Multiplication Operators Shift Operators Comparison Operators Conditional Select Operators Debug Operations Unpack Operators Pack Operators Clear MMX™ State Operator Integer Functions for Intel® Streaming SIMD Extensions Conversions between Fvec and Ivec
Floating-Point Vector Classes x
Fvec Syntax and Notation Data Alignment Conversions Constructors and Initialization Arithmetic Operators Minimum and Maximum Operators Logical Operators Compare Operators Conditional Select Operators for Fvec Classes Cacheability Support Operators Debug Operations Load and Store Operators Unpack Operators Move Mask Operators
Intel's C++ Asynchronous I/O Extensions for Windows x
Intel's C++ Asynchronous I/O Library for Windows Intel's C++ Asynchronous I/O Class for Windows
Intel's C++ Asynchronous I/O Library for Windows x
aio_read aio_write Example for aio_read and aio_write Functions aio_suspend Example for aio_suspend Function aio_error aio_return Example for aio_error and aio_return Functions aio_fsync aio_cancel Example for aio_cancel Function lio_listio Example for lio_listio Function Asynchronous I/O Function Errors
Intel's C++ Asynchronous I/O Class for Windows x
Template Class async_class get_last_operation_id wait get_status get_last_error get_error_operation_id stop_queue resume_queue clear_queue Example for Using async_class Template Class
IEEE 754-2008 Binary Floating-Point Conformance Library x
Intel® IEEE 754-2008 Binary Floating-Point Conformance Library and Usage Function List Homogeneous General-Computational Operations Functions General-Computational Operation Functions Quiet-Computational Operations Functions Signaling-Computational Operations Functions Non-Computational Operations Functions
Intel's Numeric String Conversion Library x
Use Intel's Numeric String Conversion Library Function List
Macros x
ISO Standard Predefined Macros Additional Predefined Macros Use Predefined Macros to Specify Intel® Compilers
Pragmas x
Intel-Specific Pragma Reference Intel-Supported Pragma Reference
Intel-Specific Pragma Reference x
block_loop/noblock_loop distribute_point inline, noinline, forceinline ivdep loop_count nofusion novector omp target variant dispatch ompx prefetch data prefetch/noprefetch unroll/nounroll unroll_and_jam/nounroll_and_jam vector
Compilation x
Compilation Overview Supported Environment Variables Pass Options to the Linker Specify Alternate Tools Use Configuration Files Use Response Files Global Symbols and Visibility Attributes for Linux* Save Compiler Information in Your Executable Link Debug Information Ahead of Time Compilation Device Offload Compilation Considerations Use a Third-Party Compiler as a Host Compiler for SYCL Code
Optimization and Programming x
Extensions OpenMP* Support Intel® oneAPI Level Zero Vectorization Instrumented Profile-Guided Optimization Hardware Profile-Guided Optimization High-Level Optimization Interprocedural Optimization Methods to Optimize Code Size Intel® oneAPI DPC++/C++ Compiler Math Library
OpenMP* Support x
Add OpenMP* Support Parallel Processing Model Worksharing Using OpenMP* Control Thread Allocation OpenMP* Pragmas OpenMP* Library Support OpenMP* Contexts OpenMP* Advanced Issues OpenMP* Implementation-Defined Behaviors OpenMP* Examples
OpenMP* Library Support x
OpenMP* Runtime Library Routines Intel® Compiler Extension Routines to OpenMP* OpenMP* Support Libraries Use the OpenMP Libraries Thread Affinity Interface OpenMP* Memory Spaces and Allocators
OpenMP* Contexts x
OpenMP* Context Selectors Score and Match Context Selectors
Intel® oneAPI Level Zero x
Intel® oneAPI Level Zero Switch Intel® oneAPI Level Zero Backend Specification Programming with the Intel® oneAPI Level Zero Backend
Vectorization x
Automatic Vectorization Explicit Vector Programming
Automatic Vectorization x
Vectorization Programming Guidelines Use Automatic Vectorization Vectorization and Loops Loop Constructs
Explicit Vector Programming x
User-Mandated or SIMD Vectorization SIMD-Enabled Functions SIMD-Enabled Function Pointers Function Annotations and the SIMD Directive for Vectorization Explicit SIMD SYCL Extension
Interprocedural Optimization x
Use Interprocedural Optimization Performance Considerations Create a Library from IPO Objects Inline Expansion of Functions
Intel® oneAPI DPC++/C++ Compiler Math Library x
Use the Intel® oneAPI DPC++/C++ Compiler Math Library Math Function List Trigonometric Functions Hyperbolic Functions Exponential Functions Special Functions Nearest Integer Functions Remainder Functions Miscellaneous Functions Complex Functions C99 Macros
Compatibility and Portability x
Standards Conformance GCC Compatibility and Interoperability Microsoft Compatibility Port from Microsoft Visual C++* to the Intel® oneAPI DPC++/C++ Compiler Port from GCC* to the Intel® oneAPI DPC++/C++ Compiler
Port from Microsoft Visual C++* to the Intel® oneAPI DPC++/C++ Compiler x
Modify Your makefile Other Considerations
Port from GCC* to the Intel® oneAPI DPC++/C++ Compiler x
Modify Your makefile Other Considerations
Intel® oneAPI DPC++/C++ Compiler Developer Guide and Reference

Classes Quick Reference

This appendix contains tables listing operators to perform various SIMD operations, corresponding intrinsics to perform those operations, and the classes that implement those operations. The classes listed here belong to the Intel® C++ Class Libraries for SIMD Operations.

In the following tables,

  • N/A indicates that the operator is not implemented in that particular class. For example, in the Logical Operations table, the Andnot operator is not implemented in the F32vec4 and F32vec1 classes.

  • All other entries under Classes indicate that those operators are implemented in those particular classes, and the entries under the Classes columns provide the suffix for the corresponding intrinsic. For example, consider the Arithmetic Operations: Part1 table, where the corresponding intrinsic is _mm_add_[x] and the entry epi16 is under the I16vec8 column. It means that the I16vec8 class implements the addition operators and the corresponding intrinsic is _mm_add_epi16.

Logical Operations

Operators

Corresponding
Intrinsic

Classes

I128vec1,
I64vec2,
I32vec4,
I16vec8,
I8vec16

I64vec1,
I32vec2,
I16vec4,
I8vec8

F64vec2

F32vec4

F32vec1

&, &=

_mm_and_[x]

si128

si64

pd

ps

ps

|, |=

_mm_or_[x]

si128

si64

pd

ps

ps

^, ^=

_mm_xor_[x]

si128

si64

pd

ps

ps

Andnot

_mm_andnot_[x]

si128

si64

pd

N/A

N/A

Arithmetic Operations

Part 1

Operators

Corresponding
Intrinsic

Classes

I64vec2

I32vec4

I16vec8

I8vec16

+, +=

_mm_add_[x]

epi64

epi32

epi16

epi8

-, -=

_mm_sub_[x]

epi64

epi32

epi16

epi8

*, *=

_mm_mullo_[x]

N/A

N/A

epi16

N/A

/, /=

_mm_div_[x]

N/A

N/A

N/A

N/A

mul_high

_mm_mulhi_[x]

N/A

N/A

epi16

N/A

mul_add

_mm_madd_[x]

N/A

N/A

epi16

N/A

sqrt

_mm_sqrt_[x]

N/A

N/A

N/A

N/A

rcp

_mm_rcp_[x]

N/A

N/A

N/A

N/A

rcp_nr

_mm_rcp_[x]
_mm_add_[x]
_mm_sub_[x]
_mm_mul_[x]

N/A

N/A

N/A

N/A

rsqrt

_mm_rsqrt_[x]

N/A

N/A

N/A

N/A

rsqrt_nr

_mm_rsqrt_[x]
_mm_sub_[x]
_mm_mul_[x]

N/A

N/A

N/A

N/A

Part 2

Operators

Corresponding
Intrinsic

Classes

I32vec2

I16vec4

I8vec8

F64vec2

F32vec4

F32vec1

+, +=

_mm_add_[x]

pi32

pi16

pi8

pd

ps

ss

-, -=

_mm_sub_[x]

pi32

pi16

pi8

pd

ps

ss

*, *=

_mm_mullo_[x]

N/A

pi16

N/A

pd

ps

ss

/, /=

_mm_div_[x]

N/A

N/A

N/A

pd

ps

ss

mul_high

_mm_mulhi_[x]

N/A

pi16

N/A

N/A

N/A

N/A

mul_add

_mm_madd_[x]

N/A

pi16

N/A

N/A

N/A

N/A

sqrt

_mm_sqrt_[x]

N/A

N/A

N/A

pd

ps

ss

rcp

_mm_rcp_[x]

N/A

N/A

N/A

pd

ps

ss

rcp_nr

_mm_rcp_[x]
_mm_add_[x]
_mm_sub_[x]
_mm_mul_[x]

N/A

N/A

N/A

pd

ps

ss

rsqrt

_mm_rsqrt_[x]

N/A

N/A

N/A

pd

ps

ss

rsqrt_nr

_mm_rsqrt_[x]
_mm_sub_[x]
_mm_mul_[x]

N/A

N/A

N/A

pd

ps

ss

Shift Operations

Part 1

Operators

Corresponding
Intrinsic

Classes

I128vec1

I64vec2

I32vec4

I16vec8

I8vec16

>>,>>=

_mm_srl_[x]
_mm_srli_[x]
_mm_sra__[x]
_mm_srai_[x]

N/A
N/A
N/A
N/A

epi64
epi64
N/A
N/A

epi32
epi32
epi32
epi32

epi16
epi16
epi16
epi16

N/A
N/A
N/A
N/A

<<, <<=

_mm_sll_[x]
_mm_slli_[x]

N/A
N/A

epi64
epi64

epi32
epi32

epi16
epi16

N/A
N/A

Part 2

Operators

Corresponding
Intrinsic

Classes

I64vec1

I32vec2

I16vec4

I8vec8

>>,>>=

_mm_srl_[x]
_mm_srli_[x]
_mm_sra__[x]
_mm_srai_[x]

si64
si64
N/A
N/A

pi32
pi32
pi32
pi32

pi16
pi16
pi16
pi16

N/A
N/A
N/A
N/A

<<, <<=

_mm_sll_[x]
_mm_slli_[x]

si64
si64

pi32
pi32

pi16
pi16

N/A
N/A

Comparison Operations

Part 1

Operators

Corresponding
Intrinsic

Classes

I32vec4

I16vec8

I8vec16

I32vec2

I16vec4

I8vec8

cmpeq

_mm_cmpeq_[x]

epi32

epi16

epi8

pi32

pi16

pi8

cmpneq

_mm_cmpeq_[x]
_mm_andnot_[y]*

epi32
si128

epi16
si128

epi8
si128

pi32
si64

pi16
si64

pi8
si64

cmpgt

_mm_cmpgt_[x]

epi32

epi16

epi8

pi32

pi16

pi8

cmpge

_mm_cmpge_[x]
_mm_andnot_[y]*

epi32
si128

epi16
si128

epi8
si128

pi32
si64

pi16
si64

pi8
si64

cmplt

_mm_cmplt_[x]

epi32

epi16

epi8

pi32

pi16

pi8

cmple

_mm_cmple_[x]
_mm_andnot_[y]*

epi32
si128

epi16
si128

epi8
si128

pi32
si64

pi16
si64

pi8
si64

cmpngt

_mm_cmpngt_[x]

epi32

epi16

epi8

pi32

pi16

pi8

cmpnge

_mm_cmpnge_[x]

N/A

N/A

N/A

N/A

N/A

N/A

cmpnlt

_mm_cmpnlt_[x]

N/A

N/A

N/A

N/A

N/A

N/A

cmpnle

_mm_cmpnle_[x]

N/A

N/A

N/A

N/A

N/A

N/A

* Note that _mm_andnot_[y] intrinsics do not apply to the fvec classes.

Part 2

Operators

Corresponding
Intrinsic

Classes

F64vec2

F32vec4

F32vec1

cmpeq

_mm_cmpeq_[x]

pd

ps

ss

cmpneq

_mm_cmpeq_[x]
_mm_andnot_[y]*

pd

ps

ss

cmpgt

_mm_cmpgt_[x]

pd

ps

ss

cmpge

_mm_cmpge_[x]
_mm_andnot_[y]*

pd

ps

ss

cmplt

_mm_cmplt_[x]

pd

ps

ss

cmple

_mm_cmple_[x]
_mm_andnot_[y]*

pd

ps

ss

cmpngt

_mm_cmpngt_[x]

pd

ps

ss

cmpnge

_mm_cmpnge_[x]

pd

ps

ss

cmpnlt

_mm_cmpnlt_[x]

pd

ps

ss

cmpnle

_mm_cmpnle_[x]

pd

ps

ss

* Note that _mm_andnot_[y] intrinsics do not apply to the fvec classes.

Conditional Select Operations

Part 1

Operators

Corresponding
Intrinsic

Classes

I32vec4

I16vec8

I8vec16

I32vec2

I16vec4

I8vec8

select_eq

_mm_cmpeq_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

epi32
si128
si128
si128

epi16
si128
si128
si128

epi8
si128
si128
si128

pi32
si64
si64
si64

pi16
si64
si64
si64

pi8
si64
si64
si64

select_neq

_mm_cmpeq_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

epi32
si128
si128
si128

epi16
si128
si128
si128

epi8
si128
si128
si128

pi32
si64
si64
si64

pi16
si64
si64
si64

pi8
si64
si64
si64

select_gt

_mm_cmpgt_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

epi32
si128
si128
si128

epi16
si128
si128
si128

epi8
si128
si128
si128

pi32
si64
si64
si64

pi16
si64
si64
si64

pi8
si64
si64
si64

select_ge

_mm_cmpge_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

epi32
si128
si128
si128

epi16
si128
si128
si128

epi8
si128
si128
si128

pi32
si64
si64
si64

pi16
si64
si64
si64

pi8
si64
si64
si64

select_lt

_mm_cmplt_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

epi32
si128
si128
si128

epi16
si128
si128
si128

epi8
si128
si128
si128

pi32
si64
si64
si64

pi16
si64
si64
si64

pi8
si64
si64
si64

select_le

_mm_cmple_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

epi32
si128
si128
si128

epi16
si128
si128
si128

epi8
si128
si128
si128

pi32
si64
si64
si64

pi16
si64
si64
si64

pi8
si64
si64
si64

select_ngt

_mm_cmpgt_[x]

N/A

N/A

N/A

N/A

N/A

N/A

select_nge

_mm_cmpge_[x]

N/A

N/A

N/A

N/A

N/A

N/A

select_nlt

_mm_cmplt_[x]

N/A

N/A

N/A

N/A

N/A

N/A

select_nle

_mm_cmple_[x]

N/A

N/A

N/A

N/A

N/A

N/A

* Note that _mm_andnot_[y] intrinsics do not apply to the fvec classes.

Part 2

Operators

Corresponding
Intrinsic

Classes

F64vec2

F32vec4

F32vec1

select_eq

_mm_cmpeq_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

pd

ps

ss

select_neq

_mm_cmpeq_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

pd

ps

ss

select_gt

_mm_cmpgt_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

pd

ps

ss

select_ge

_mm_cmpge_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

pd

ps

ss

select_lt

_mm_cmplt_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

pd

ps

ss

select_le

_mm_cmple_[x]
_mm_and_[y]
_mm_andnot_[y]*
_mm_or_[y]

pd

ps

ss

select_ngt

_mm_cmpgt_[x]

pd

ps

ss

select_nge

_mm_cmpge_[x]

pd

ps

ss

select_nlt

_mm_cmplt_[x]

pd

ps

ss

select_nle

_mm_cmple_[x]

pd

ps

ss

* Note that _mm_andnot_[y] intrinsics do not apply to the fvec classes.

Packing and Unpacking Operations

Part 1

Operators

Corresponding
Intrinsic

Classes

I64vec2

I32vec4

I16vec8

I8vec16

I32vec2

unpack_high

_mm_unpackhi_[x]

epi64

epi32

epi16

epi8

pi32

unpack_low

_mm_unpacklo_[x]

epi64

epi32

epi16

epi8

pi32

pack_sat

_mm_packs_[x]

N/A

epi32

epi16

N/A

pi32

packu_sat

_mm_packus_[x]

N/A

N/A

epi16

N/A

N/A

sat_add

_mm_adds_[x]

N/A

N/A

epi16

epi8

N/A

sat_sub

_mm_subs_[x]

N/A

N/A

epi16

epi8

N/A

Part 2

Operators

Corresponding
Intrinsic

Classes

I16vec4

I8vec8

F64vec2

F32vec4

F32vec1

unpack_high

_mm_unpackhi_[x]

pi16

pi8

pd

ps

N/A

unpack_low

_mm_unpacklo_[x]

pi16

pi8

pd

ps

N/A

pack_sat

_mm_packs_[x]

pi16

N/A

N/A

N/A

N/A

packu_sat

_mm_packus_[x]

pu16

N/A

N/A

N/A

N/A

sat_add

_mm_adds_[x]

pi16

pi8

pd

ps

ss

sat_sub

_mm_subs_[x]

pi16

pi8

pi16

pi8

pd

Conversions Operations

Conversion operations can be performed using intrinsics only. There are no classes implemented to correspond to these intrinsics.

Operators

Corresponding
Intrinsic

F64vec2ToInt

_mm_cvttsd_si32

F32vec4ToF64vec2

_mm_cvtps_pd

F64vec2ToF32vec4

_mm_cvtpd_ps

IntToF64vec2

_mm_cvtsi32_sd

F32vec4ToInt

_mm_cvtt_ss2si

F32vec4ToIs32vec2

_mm_cvttps_pi32

IntToF32vec4

_mm_cvtsi32_ss

Is32vec2ToF32vec4

_mm_cvtpi32_ps
Parent topic: Intel® C++ Class Libraries
Level Two Title