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authorKarol Herbst <[email protected]>2017-06-23 20:30:26 +0200
committerIlia Mirkin <[email protected]>2017-07-21 23:45:18 -0400
commit4ad9e2e17a8019b383d3664ca39ae3227aa3776d (patch)
tree8b3ed686eeaf90db3807e4790b50880db4573ef2
parentc5cbb9a54345319d3924f9c7d0572fcc4739c516 (diff)
st/glsl_to_tgsi: don't optimize mul+add to mad if expression is precise
Signed-off-by: Karol Herbst <[email protected]> Reviewed-by: Nicolai Hähnle <[email protected]>
-rw-r--r--src/mesa/state_tracker/st_glsl_to_tgsi.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index c8f40c147d8..baa835924bc 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -1557,7 +1557,7 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
/* Quick peephole: Emit MAD(a, b, c) instead of ADD(MUL(a, b), c)
*/
- if (ir->operation == ir_binop_add) {
+ if (!this->precise && ir->operation == ir_binop_add) {
if (try_emit_mad(ir, 1))
return;
if (try_emit_mad(ir, 0))