CVS commit: src/usr.bin/make

["Roland Illig" <rillig%netbsd.org@localhost>]

Module Name:    src
Committed By:   rillig
Date:           Wed Dec 29 07:40:53 UTC 2021

Modified Files:
        src/usr.bin/make: cond.c

Log Message:
make: replace table for function lookup in conditions with simple code

The code for looking up the function from the table forced the compiler
to use a specific memory layout.  Replacing the table with explicit code
provides the compiler more opportunities to optimize the code.  Another
side effect is that there are fewer pointer operations.

Previously, is_token checked that the character after the word does not
continue the word, this is now done separately since for the function
lookup, this check was unnecessary.  The newly added skip_string
provides a higher abstraction level, it is no longer necessary to pass
the string length as a separate, redundant parameter.

No functional change.


To generate a diff of this commit:
cvs rdiff -u -r1.313 -r1.314 src/usr.bin/make/cond.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.