Processor Dispatch Support (IA-32 only)

Option

Description

-tpp5

Optimizes for the Intel® PentiumŪ processor.
Enables best performance for Pentium processor

-tpp6

Optimizes for the Intel Pentium Pro, Pentium II, and Pentium III processors. Enables best performance for the above processors

-tpp7

Optimizes for the Pentium 4 processor. Requires the RedHat* Linux* 7.1 and support of Streaming SIMD Extensions 2.
Enables best performance for Pentium 4 processor

-ax{i|M|K|W}

Generates, in a single binary, code specialized to the extensions specified by the codes:

  • i Pentium Pro, Pentium II processors
  • M Pentium with MMX(TM) technology processor
  • K Pentium III processor
  • W Pentium 4 processor

In addition, -ax generates generic IA-32 code. The generic code is usually slower.

-x{i|M|K|W}

Generate specialized code to run exclusively on the processors supporting the extensions indicated by the codes:

  • i Pentium Pro, Pentium II processors
  • M Pentium with MMX(TM) technology processor
  • K Pentium III processor
  • W Pentium 4 processor