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You can use the /Q compiler options to perform the following low-level compiler operations:
/Qfast_transcendentals (Force Fast Transcendentals): Generates fast transcendentals.
/QIfist (Suppress _ftol): Suppresses
_ftolwhen a conversion from a floating-point type to an integer type is required (x86 only)./Qimprecise_fwaits (Remove fwaits Inside Try Blocks): Removes
fwaitcommands insidetryblocks./QIntel-jcc-erratum: Mitigates the performance impact caused by the Intel Jump Conditional Code (JCC) erratum microcode update.
/Qpar (Auto-Parallelizer): Enables automatic parallelization of loops that are marked with the #pragma loop() directive.
/Qpar-report (Auto-Parallelizer Reporting Level): Enables reporting levels for automatic parallelization.
/Qsafe_fp_loads: Suppresses optimizations for floating-point register loads and for moves between memory and MMX registers.
/Qspectre: Generates instructions to mitigate certain Spectre security vulnerabilities.
/Qspectre-load: Generates instructions to mitigate Spectre security vulnerabilities based on loads.
/Qspectre-load-cf: Generates instructions to mitigate Spectre security vulnerabilities based on control flow instructions which load.
/Qvec-report (Auto-Vectorizer Reporting Level): Enables reporting levels for automatic vectorization.