Re: [PATCH 0/3] yacc: compute the best type for the state number

[Paul Eggert]

On 10/1/19 1:35 AM, Paul Eggert wrote:
> Actually those arrays use int_fast16_t not int16_t, as C99/C11/C18 does not 
> require support for int16_t. It could well be more efficient for them to use 
> int_least16_t instead, for better caching

Attached is a proposed patch to implement this for Bison. This patch also fixes 
some portability problems for odd machines like the TI TMS320C55x where 
'unsigned char', 'unsigned short', and 'unsigned' are all the same width (which 
C allows), and where picky -Wconversion compilers warn about assigning an 
unsigned char value to an int variable.

Comments welcome; I haven't installed this.

0001-Use-least-types-for-integers-in-Yacc-tables.txt
Description: Text document