diff --git a/src/gallium/drivers/radeon/radeon_llvm.h b/src/gallium/drivers/radeon/radeon_llvm.h
index 367e4c00f67..b4b968b26b7 100644
--- a/src/gallium/drivers/radeon/radeon_llvm.h
+++ b/src/gallium/drivers/radeon/radeon_llvm.h
@@ -121,8 +121,6 @@ void radeon_llvm_create_func(struct radeon_llvm_context *ctx,
 
 void radeon_llvm_dispose(struct radeon_llvm_context *ctx);
 
-unsigned radeon_llvm_reg_index_soa(unsigned index, unsigned chan);
-
 void radeon_llvm_finalize_module(struct radeon_llvm_context *ctx,
 				 bool run_verifier);
 
diff --git a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
index 2713cc64e81..2d424d5ff24 100644
--- a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
+++ b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
@@ -152,11 +152,6 @@ push_flow(struct radeon_llvm_context *ctx)
 	return flow;
 }
 
-unsigned radeon_llvm_reg_index_soa(unsigned index, unsigned chan)
-{
-	return (index * 4) + chan;
-}
-
 static LLVMValueRef emit_swizzle(struct lp_build_tgsi_context *bld_base,
 				 LLVMValueRef value,
 				 unsigned swizzle_x,