radeonsi: add bitcast_inputs() helper

Will be used in a following patch to help support doubles.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader_nir.c b/src/gallium/drivers/radeonsi/si_shader_nir.c
index 34d28b7a728704e7cbeee6a415cf408e92ded52e..e05548c1b88a88fe05d9bbbc69fa2735bc7fd4b1 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader_nir.c
+++ b/src/gallium/drivers/radeonsi/si_shader_nir.c
@@ -644,6 +644,16 @@ si_nir_load_sampler_desc(struct ac_shader_abi *abi,
        return si_load_sampler_desc(ctx, list, index, desc_type);
 }
 
+static void bitcast_inputs(struct si_shader_context *ctx,
+                          LLVMValueRef data[4],
+                          unsigned input_idx)
+{
+       for (unsigned chan = 0; chan < 4; chan++) {
+               ctx->inputs[input_idx + chan] =
+                       LLVMBuildBitCast(ctx->ac.builder, data[chan], ctx->ac.i32, "");
+       }
+}
+
 bool si_nir_build_llvm(struct si_shader_context *ctx, struct nir_shader *nir)
 {
        struct tgsi_shader_info *info = &ctx->shader->selector->info;
@@ -667,15 +677,14 @@ bool si_nir_build_llvm(struct si_shader_context *ctx, struct nir_shader *nir)
                        if (processed_inputs & ((uint64_t)1 << loc))
                                continue;
 
-                       if (nir->info.stage == MESA_SHADER_VERTEX)
+                       if (nir->info.stage == MESA_SHADER_VERTEX) {
                                declare_nir_input_vs(ctx, variable, data);
-                       else if (nir->info.stage == MESA_SHADER_FRAGMENT)
+                               bitcast_inputs(ctx, data, input_idx);
+                       } else if (nir->info.stage == MESA_SHADER_FRAGMENT) {
                                declare_nir_input_fs(ctx, variable, input_idx / 4, data);
-
-                       for (unsigned chan = 0; chan < 4; chan++) {
-                               ctx->inputs[input_idx + chan] =
-                                       LLVMBuildBitCast(ctx->ac.builder, data[chan], ctx->ac.i32, "");
+                               bitcast_inputs(ctx, data, input_idx);
                        }
+
                        processed_inputs |= ((uint64_t)1 << loc);
                }
        }