Working with GCC’s tunable parameters — gcc-python-plugin 0.16 documentation (original) (raw)

GCC has numerous tunable parameters, which are integer values, tweakable at the command-line by:

A detailed description of the current parameters (in GCC 4.6.0) can be seen athttp://gcc.gnu.org/onlinedocs/gcc-4.6.0/gcc/Optimize-Options.html#Optimize-Options(search for “–param” on that page; there doesn’t seem to be an anchor to the list)

The parameters are visible from Python scripts using the following API:

gcc. get_parameters()¶

Returns a dictionary, mapping from the option names to gcc.Parameter instances

class gcc. Parameter¶

option¶

(string) The name used with the command-line –param switch to set this value

current_value¶

(int/long)

default_value¶

(int/long)

min_value¶

(int/long) The minimum acceptable value

max_value¶

(int/long) The maximum acceptable value, if greater than min_value

help¶

(string) A short description of the option.