From 069901e2f5a8f4a58047d25335f2526f1acc7234 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 19 Dec 2011 09:20:57 -0800 Subject: [PATCH] i965/fs: Allow constant propagation into IF with embedded compare. This saves a couple of instructions on most programs with control flow. More interestingly, 6 shaders from unigine sanctuary now fit into 16-wide without register spilling. --- src/mesa/drivers/dri/i965/brw_fs.cpp | 1 + 1 file changed, 1 insertion(+) diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 8ca4a8735d0..b6aa60e84f3 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -1144,6 +1144,7 @@ fs_visitor::propagate_constants() break; case BRW_OPCODE_CMP: + case BRW_OPCODE_IF: if (i == 1) { scan_inst->src[i] = inst->src[0]; progress = true; -- 2.30.2