glsl: Replace ir_variable::warn_extension pointer with an 8-bit index
Also move the new warn_extension_index into ir_variable::data. This
enables slightly better packing.
Valgrind massif results for a trimmed apitrace of dota2:
n time(i) total(B) useful-heap(B) extra-heap(B) stacks(B)
Before (32-bit): 82 40,580,040,531 68,488,992 62,973,695 5,515,297 0
After (32-bit): 73 40,580,476,304 68,488,400 62,796,151 5,692,249 0
Before (64-bit): 65 37,124,013,542 95,892,768 88,466,712 7,426,056 0
After (64-bit): 71 37,124,890,613 95,889,584 88,089,008 7,800,576 0
A real savings of 173KiB on 32-bit and 368KiB on 64-bit.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
3 files changed