From: Kenneth Graunke Date: Tue, 10 May 2016 01:11:00 +0000 (-0700) Subject: i965: Reduce the SIMD8 GS push constant threshold from 32 to 24. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=607fb0f13df8e328ed5d173c98fc250449c55aee;p=mesa.git i965: Reduce the SIMD8 GS push constant threshold from 32 to 24. Three Shadow of Mordor geometry shaders increase by a single instruction, but the number of spills/fills in Orbital Explorer is reduced from 194:1279 -> 82:454. No other programs are affected. Signed-off-by: Kenneth Graunke Reviewed-by: Jordan Justen --- diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 2a542b8e510..89b30c7bfb8 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -5229,8 +5229,8 @@ fs_visitor::setup_gs_payload() payload.num_regs++; } - /* Use a maximum of 32 registers for push-model inputs. */ - const unsigned max_push_components = 32; + /* Use a maximum of 24 registers for push-model inputs. */ + const unsigned max_push_components = 24; /* If pushing our inputs would take too many registers, reduce the URB read * length (which is in HWords, or 8 registers), and resort to pulling.