Module: Mesa
Branch: master
Commit: 115c79be10bf3712a1e1bc25a563c90388c1bcaa
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=115c79be10bf3712a1e1bc25a563c90388c1bcaa

Author: Samuel Pitoiset <[email protected]>
Date:   Wed Sep 14 22:15:14 2016 +0200

nv50/ir: optimize SHLADD(a, b, c) to MOV((a << b) + c)

Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Ilia Mirkin <[email protected]>

---

 src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp 
b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp
index cbbe34d..9875738 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp
@@ -778,6 +778,9 @@ ConstantFolding::expr(Instruction *i,
       }
       break;
    }
+   case OP_SHLADD:
+      res.data.u32 = (a->data.u32 << b->data.u32) + c->data.u32;
+      break;
    default:
       return;
    }

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