LINTERP is implemented as a PLN instruction or a LINE+MAC. PLN and MAC
can do conditional mod. CINTERP is just a MOV.
total instructions in shared programs: 5952103 -> 5950284 (-0.03%)
instructions in affected programs: 324573 -> 322754 (-0.56%)
helped: 1819
We lose the SIMD16 in one Unigine Heaven shader which appears six times
in shader-db.
---
src/mesa/drivers/dri/i965/brw_shader.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp
b/src/mesa/drivers/dri/i965/brw_shader.cpp
index be30d97..678390e 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.cpp
+++ b/src/mesa/drivers/dri/i965/brw_shader.cpp
@@ -834,6 +834,8 @@ backend_instruction::can_do_cmod() const
case BRW_OPCODE_SHR:
case BRW_OPCODE_SUBB:
case BRW_OPCODE_XOR:
+ case FS_OPCODE_CINTERP:
+ case FS_OPCODE_LINTERP:
return true;
default:
return false;
--
2.0.4
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