util/romcc: Use 64 bit integers when shifting

'used_indices' is 64 bits wide, so use a fixed-width type to make
that clear. As such, 'index' can have a value of up to 63, so use a
64 bit integer when doing the shifts to prevent overflow.

Found-by: Coverity Scan CID 1287090
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Change-Id: Ibd089df6be60c8ea46da11e5e83cd58b2e2c54d6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32854
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions