CVS commit: src/usr.bin/make

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

Module Name:    src
Committed By:   rillig
Date:           Tue Feb  2 15:41:14 UTC 2021

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

Log Message:
make: replace enum bit-set with bit-field

No functional change.

The generated code from GCC 5.5 is very similar.  On x86_64, memory
access is no longer in 32-bit units but in 8-bit units since only the
first few bits are actually used.  The bit patterns are the same as
before, so if there is any difference in performance, GCC should have
chosen the more efficient variant all along.

In a previous experiment, the code size increased a lot, surprisingly.


To generate a diff of this commit:
cvs rdiff -u -r1.787 -r1.788 src/usr.bin/make/var.c

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