[Mesa-dev] [PATCH] nvir/nvc0: fix CVT lowering for dType == sType

[Karol Herbst]

The lowering code can't really handle that situation well and we just get away
with converting it to OP_MOV in this case.

Signed-off-by: Karol Herbst <kherbst at redhat.com>
---
 src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
index b0834a8035..da2f979e66 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
@@ -2808,6 +2808,11 @@ NVC0LoweringPass::handleCVT(Instruction *i)
    if (isFloatType(i->dType) || isFloatType(i->sType))
       return true;
 
+   if (i->dType == i->sType) {
+      i->op = OP_MOV;
+      return true;
+   }
+
    if (i->saturate && (typeSizeof(i->sType) > typeSizeof(i->dType))) {
       if (isSignedIntType(i->sType) && !isSignedIntType(i->dType)) {
          // Signed to unsigned: only need to clamp to 0
-- 
2.14.3