nir/builder: Add a helper for grabbing multiple channels from an ssa def

This is similar to nir_channel except that it lets you grab more than one
channel by providing a mask.

Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 1 insertions, 3 deletions

diff --git a/src/intel/vulkan/anv_meta_blit2d.c b/src/intel/vulkan/anv_meta_blit2d.c
index 577eeaea104..06e10432952 100644
--- a/src/intel/vulkan/anv_meta_blit2d.c
+++ b/src/intel/vulkan/anv_meta_blit2d.c
@@ -1010,9 +1010,7 @@ build_nir_w_tiled_fragment_shader(struct anv_device *device,
    discard->src[0] = nir_src_for_ssa(oob);
    nir_builder_instr_insert(&b, &discard->instr);
 
-   unsigned swiz[4] = { 0, 1, 0, 0 };
-   nir_ssa_def *tex_off =
-      nir_swizzle(&b, nir_load_var(&b, tex_off_in), swiz, 2, false);
+   nir_ssa_def *tex_off = nir_channels(&b, nir_load_var(&b, tex_off_in), 0x3);
    nir_ssa_def *tex_pos = nir_iadd(&b, nir_vec2(&b, x_W, y_W), tex_off);
    nir_ssa_def *tex_pitch = nir_channel(&b, nir_load_var(&b, tex_off_in), 2);