+static void
+lower_load_pointcoord(lower_wpos_ytransform_state *state,
+ nir_intrinsic_instr *intr)
+{
+ nir_builder *b = &state->b;
+ b->cursor = nir_after_instr(&intr->instr);
+
+ nir_ssa_def *pntc = &intr->dest.ssa;
+ nir_ssa_def *transform = get_transform(state);
+ nir_ssa_def *y = nir_channel(b, pntc, 1);
+ /* The offset is 1 if we're flipping, 0 otherwise. */
+ nir_ssa_def *offset = nir_fmax(b, nir_channel(b, transform, 2),
+ nir_imm_float(b, 0.0));
+ /* Flip the sign of y if we're flipping. */
+ nir_ssa_def *scaled = nir_fmul(b, y, nir_channel(b, transform, 0));
+
+ /* Reassemble the vector. */
+ nir_ssa_def *flipped_pntc = nir_vec2(b,
+ nir_channel(b, pntc, 0),
+ nir_fadd(b, offset, scaled));
+
+ nir_ssa_def_rewrite_uses_after(&intr->dest.ssa, nir_src_for_ssa(flipped_pntc),
+ flipped_pntc->parent_instr);
+}
+