# Deprecated and Removed Compiler Options

This topic lists deprecated and removed compiler options and suggests replacement options, if any are available.

Deprecated and removed options for DPC++ and C++ are listed in separate tables. There are currently no removed options for DPC++.

For more information on compiler options, see the detailed descriptions of the individual option descriptions in this section.

## Deprecated Options for DPC++

Occasionally, compiler options are marked as "deprecated." Deprecated options are still supported in the current release, but they may be unsupported in future releases.

The following table lists options that are currently deprecated.

Note that deprecated options are not limited to this list.

Deprecated Linux* and Windows* Options | Suggested Replacement
--- | ---
-foffload-static-lib | None
-fsycl-add-targets | None
-fsycl-explicit-simd | None
-fsycl-link-targets | None

## Deprecated Options for C++

Occasionally, compiler options are marked as "deprecated." Deprecated options are still supported in the current release, but they may be unsupported in future releases.

The following two tables list options that are currently deprecated.

Note that deprecated options are not limited to these lists.

Deprecated Linux* Options | Suggested Replacement
--- | ---
-daal | -qdaal
-device-math-lib | None
-fopenmp | None
-ipp | -qipp
-Kc++ | -x c++
-m32 | None
-march=pentiumii | None
-march=pentiumiii | -march=pentium3
-mkl | -qmkl
-msse | Linux* only: None
-tbb | -qtbb
-xH | -xSSE4.2

Deprecated Windows* Options | Suggested Replacement
--- | ---
/device-math-lib | None
/GX | /EHsc
/Gy | None
/GZ | /RTC1
/H | None
/Oy | None
/Qm32 | None
/Qsfalign | None
/Qsox | None
/Quse-asm | None
/QxH | /QxSSE4.2
/Ze | None
/Zg | None

## Removed Options

Some compiler options are no longer supported and have been removed. If you use one of these options, the compiler issues a warning, ignores the option, and then proceeds with compilation.

The following two tables list options that are no longer supported.

Note that removed options are not limited to these lists.

Removed Linux* Options | Suggested Replacement
--- | ---
-A- | -undef
-0f_check | None
-c99 | -std=c99
-check-uninit | -check=uninit
-export | None
-export-dir | None
-F | -P
-falign-stack=mode | None
-fdiv_check | None
-fp | -fno-omit-frame-pointer
-fvisibility=internal | -fvisibility=hidden
-fwritable-strings | None
-gcc-name and -gxx-name | No exact replacement; use -gcc-toolchain
-guide-profile | None
-i-dynamic | -shared-intel
-i-static | -static-intel
-inline-debug-info | -debug inline-debug-info
-ipo-obj (and -ipo_obj) | None
-ipp-link=static-thread | None
-Knopic, -KNOPIC | -fpic
-Kpic, -KPIC | -fpic
-mp | -fp-model
-no-alias-args | -fargument-noalias
-no-c99 | -std=c89
-openmp | -qopenmp
-openmp-lib | -qopenmp-lib
-openmp-lib legacy | None
-openmp-link and -qopenmp-link | None
-openmpP | -qopenmp
-openmp-profile | None
-openmp-report | -qopt-report-phase=openmp
-openmpS | -qopenmp-stubs
-openmp-stubs | -qopenmp-stubs
-openmp-task | -qopenmp-task
-opt-gather-scatter-unroll | None
-opt-report | -qopt-report
-opt-streaming-cache-evict | None
-prefetch | -qopt-prefetch
-print-sysroot | None
-prof-format-32 | None
-prof-genx | -prof-gen=srcpos
-profile-functions | None
-profile-loops | None
-profile-loops-report | None
-qopenmp-report | -qopt-report-phase=openmp
-qopenmp-task | None
-qp | -p
-rct | None
-shared-libcxa | -shared-libgcc
-ssp | None
-static-libcxa | -static-libgcc
-std=c9x | -std=c99
-syntax | -fsyntax-only
-tcheck | None
-tpp1 | None
-tpp2 | None
-tpp5 | None
-tpp6 | None
-tpp7 | None
-tprofile | None
-Wpragma-once | None

Removed Windows* Options | Suggested Replacement
--- | ---
/debug:parallel | None
/G5 | None
/G6 (or /GB) | None
/G7 | None
/Gf | /GF
/ML[d] | Upgrade to /MT[d]
/Og | /O1, /O2, or /O3
/Op | /fp:precise
/QA- | /u
/Qc99 | /Qstd=c99
/Qguide-profile | None
/Qgpu-arch:ivybridge | None
/QI0f | None
/QIfdiv | None
/Qinline-debug-info | /debug:inline-debug-info
/Qipo-obj (and /Qipo_obj) | None
/Qipp-link:static-thread | None
/Qmspp | None
/Qopenmp-lib:legacy | None
/Qopenmp-link | None
/Qopenmp-profile | None
/Qopenmp-report | /Qopt-report-phase:openmp
/Qopenmp-task | None
/Qopt-report-level | /Qopt-report
/Qprefetch | /Qopt-prefetch
/Qprof-format-32 | None
/Qprofile-functions | None
/Qprofile-loops | None
/Qprofile-loops-report | None
/Qrct | None
/Qssp | None
/Qtprofile | None
/Qtcheck | None
/Qvc11 /Qvc10 /Qvc9 and earlier | None
/YX | None
/Zd | /debug:minimal

Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex. Notice revision #20201201

Parent topic: Compiler Options