Mesa (master): radv/ac: apply slice rounding to 1d arrays as well.

[Dave Airlie]

Module: Mesa
Branch: master
Commit: 8477aa71d902d6a6fd89741151f8d119a72a7dc0
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=8477aa71d902d6a6fd89741151f8d119a72a7dc0

Author: Dave Airlie <airlied at redhat.com>
Date:   Tue Jan 31 10:09:11 2017 +1000

radv/ac: apply slice rounding to 1d arrays as well.

Fixes:
dEQP-VK.glsl.texture_functions.texture.*1darray*

Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Cc: "17.0" <mesa-stable at lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied at redhat.com>

---

 src/amd/common/ac_nir_to_llvm.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index cdcc154..c622c00 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -3453,6 +3453,15 @@ static void tex_fetch_ptrs(struct nir_to_llvm_context *ctx,
 		*fmask_ptr = get_sampler_desc(ctx, instr->texture, DESC_FMASK);
 }
 
+static LLVMValueRef apply_round_slice(struct nir_to_llvm_context *ctx,
+				      LLVMValueRef coord)
+{
+	coord = to_float(ctx, coord);
+	coord = ac_emit_llvm_intrinsic(&ctx->ac, "llvm.rint.f32", ctx->f32, &coord, 1, 0);
+	coord = to_integer(ctx, coord);
+	return coord;
+}
+
 static void visit_tex(struct nir_to_llvm_context *ctx, nir_tex_instr *instr)
 {
 	LLVMValueRef result = NULL;
@@ -3614,15 +3623,16 @@ static void visit_tex(struct nir_to_llvm_context *ctx, nir_tex_instr *instr)
 	/* Pack texture coordinates */
 	if (coord) {
 		address[count++] = coords[0];
-		if (instr->coord_components > 1)
+		if (instr->coord_components > 1) {
+			if (instr->sampler_dim == GLSL_SAMPLER_DIM_1D && instr->is_array && instr->op != nir_texop_txf) {
+				coords[1] = apply_round_slice(ctx, coords[1]);
+			}
 			address[count++] = coords[1];
+		}
 		if (instr->coord_components > 2) {
 			/* This seems like a bit of a hack - but it passes Vulkan CTS with it */
 			if (instr->sampler_dim != GLSL_SAMPLER_DIM_3D && instr->op != nir_texop_txf) {
-				coords[2] = to_float(ctx, coords[2]);
-				coords[2] = ac_emit_llvm_intrinsic(&ctx->ac, "llvm.rint.f32", ctx->f32, &coords[2],
-								1, 0);
-				coords[2] = to_integer(ctx, coords[2]);
+				coords[2] = apply_round_slice(ctx, coords[2]);
 			}
 			address[count++] = coords[2];
 		}