radeonsi/nir: fix handling of doubles for gs inputs

Fixes piglit test:
tests/spec/arb_gpu_shader_fp64/execution/explicit-location-gs-fs-vs.shader_test

Reviewed-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index f3a37d71a0a88500a21eb4c7c0b5a33acb59e2aa..2ae2544e3f71aa549fc1a621e8ac42bce649bd66 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1693,10 +1693,14 @@ static LLVMValueRef si_nir_load_input_gs(struct ac_shader_abi *abi,
 {
        struct si_shader_context *ctx = si_shader_context_from_abi(abi);
 
-       LLVMValueRef value[8];
+       LLVMValueRef value[4];
        for (unsigned i = component; i < num_components + component; i++) {
+               unsigned offset = i;
+               if (llvm_type_is_64bit(ctx, type))
+                       offset *= 2;
+
                value[i] = si_llvm_load_input_gs(&ctx->abi, driver_location  / 4,
-                                                vertex_index, type, i);
+                                                vertex_index, type, offset);
        }
 
        return ac_build_varying_gather_values(&ctx->ac, value, num_components, component);