[Mesa-stable] [PATCH] nvc0/ir: fix images indirect access on Fermi

[Samuel Pitoiset]

This fixes the following piglits:

arb_arrays_of_arrays-basic-imagestore-mixed-const-non-const-uniform-index
arb_arrays_of_arrays-basic-imagestore-mixed-const-non-const-uniform-index2

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Cc: 12.0 <mesa-stable at lists.freedesktop.org>
---

Expect minor conflicts because I did refactor that logic but the patch has not
been backported.

 src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp | 7 +++++++
 1 file changed, 7 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 9735773..18955eb 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
@@ -2008,6 +2008,13 @@ NVC0LoweringPass::processSurfaceCoordsNVC0(TexInstruction *su)
 
    adjustCoordinatesMS(su);
 
+   if (ind) {
+      Value *ptr;
+      ptr = bld.mkOp2v(OP_ADD, TYPE_U32, bld.getSSA(), ind, bld.mkImm(su->tex.r));
+      ptr = bld.mkOp2v(OP_AND, TYPE_U32, bld.getSSA(), ptr, bld.mkImm(7));
+      su->setIndirectR(ptr);
+   }
+
    // get surface coordinates
    for (c = 0; c < arg; ++c)
       src[c] = su->getSrc(c);
-- 
2.9.0