The following macros can be tested for target architecture settings. All of these macros are predefined to a value of 1 by a -qarch compiler option setting, or any other compiler option that implies that setting. If the -qarch suboption enabling the feature is not in effect, then the macro is undefined.
| Macro name | Description | Predefined by the following -qarch suboptions |
|---|---|---|
| _ARCH_403 | Indicates that the application is targeted to run on the PowerPC 403 processor. | 403 |
| _ARCH_604 | Indicates that the application is targeted to run on the PowerPC 604 processor. | 604 |
| _ARCH_COM | Indicates that the application is targeted to run on any Power® processor. | Defined for all -qarch suboptions except auto. |
| _ARCH_PPC | Indicates that the application is targeted to run on any Power processor. | Defined for all -qarch suboptions except auto. |
| _ARCH_PPC64 | Indicates that the application is targeted to run on Power processors with 64-bit support. | ppc64 | pwr3 | rs64b | rs64c | ppc64gr | ppc64grsq | ppc64v | pwr4 | pwr5 | pwr5x | pwr6 | pwr6e | pwr7 | ppc970 |
| _ARCH_PPCGR | Indicates that the application is targeted to run on Power processors with graphics support. | ppcgr | 604 | pwr3 | rs64b | rs64c | ppc64gr | ppc64grsq | ppc64v | pwr4 | pwr5 | pwr5x | pwr6 | pwr6e | pwr7 | ppc970 |
| _ARCH_PPC64GR | Indicates that the application is targeted to run on Power processors with 64-bit and graphics support. | pwr3 | rs64b | rs64c | ppc64gr | ppc64v | pwr4 | pwr5 | pwr5x | pwr6 | pwr6e | pwr7 | ppc970 |
| _ARCH_PPC64GRSQ | Indicates that the application is targeted to run on Power processors with 64-bit, graphics, and square root support. | pwr3 | rs64b | rs64c | ppc64grsq | ppc64v | pwr4 | pwr5 | pwr5x | pwr6 | pwr6e | pwr7 | ppc970 |
| _ARCH_PPC64V | Indicates that the application is targeted to run on Power processors with 64-bit and vector processing support. | ppc64v | ppc970 | pwr6 | pwr6e | pwr7 |
| _ARCH_PPC970 | Indicates that the application is targeted to run on the PowerPC® 970 processor. | ppc970 |
| _ARCH_PWR3 | Indicates that the application is targeted to run on POWER3 processors. | pwr3 | pwr4 | pwr5 | pwr5x | pwr6 | pwr6e | pwr7 | ppc970 |
| _ARCH_PWR4 | Indicates that the application is targeted to run on POWER4 processors. | pwr4 | pwr5 | pwr5x | pwr6 | pwr6e | pwr7 | ppc970 |
| _ARCH_PWR5 | Indicates that the application is targeted to run on POWER5 processors. | pwr5 | pwr5x | pwr6 | pwr6e | pwr7 |
| _ARCH_PWR5X | Indicates that the application is targeted to run on POWER5+ processors. | pwr5x | pwr6 | pwr6e | pwr7 |
| _ARCH_PWR6 | Indicates that the application is targeted to run on POWER6® processors. | pwr6 | pwr6e | pwr7 |
| _ARCH_PWR6E | Indicates that the application is targeted to run on POWER6 processors running in POWER6 raw mode. | pwr6e |
| _ARCH_PWR7 | Indicates that the application is targeted to run on POWER7® processors. | pwr7 |
| _ARCH_RS64A | Indicates that the application is targeted to run on the RS64I processor. | rs64a |
| _ARCH_RS64B | Indicates that the application is targeted to run on the RS64II processor. | rs64b |
| _ARCH_RS64C | Indicates that the application is targeted to run on the RS64III processor. | rs64c |