radv: include LLVM IR in the VK_AMD_shader_info "disassembly"

Helpful for debugging compiler backend problems: this allows us to
easily retrieve the LLVM IR from RenderDoc.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

src/amd/vulkan/radv_shader.c

@@ -860,6 +860,7 @@ radv_GetShaderInfoAMD(VkDevice _device,
 		buf = _mesa_string_buffer_create(NULL, 1024);
 
 		_mesa_string_buffer_printf(buf, "%s:\n", radv_get_shader_name(variant, stage));
+		_mesa_string_buffer_printf(buf, "%s\n\n", variant->llvm_ir_string);
 		_mesa_string_buffer_printf(buf, "%s\n\n", variant->disasm_string);
 		generate_shader_stats(device, variant, stage, buf);