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-rw-r--r--src/amd/common/ac_nir_to_llvm.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index e44afbb9b22..15d6759ced1 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -5317,6 +5317,9 @@ handle_vs_input_decl(struct nir_to_llvm_context *ctx,
int index = variable->data.location - VERT_ATTRIB_GENERIC0;
int idx = variable->data.location;
unsigned attrib_count = glsl_count_attribute_slots(variable->type, true);
+ uint8_t input_usage_mask =
+ ctx->shader_info->info.vs.input_usage_mask[variable->data.location];
+ unsigned num_channels = util_last_bit(input_usage_mask);
variable->data.driver_location = idx * 4;
@@ -5341,7 +5344,9 @@ handle_vs_input_decl(struct nir_to_llvm_context *ctx,
input = ac_build_buffer_load_format(&ctx->ac, t_list,
buffer_index,
ctx->ac.i32_0,
- 4, false, true);
+ num_channels, false, true);
+
+ input = ac_build_expand_to_vec4(&ctx->ac, input, num_channels);
for (unsigned chan = 0; chan < 4; chan++) {
LLVMValueRef llvm_chan = LLVMConstInt(ctx->ac.i32, chan, false);