Even though the uninitialized values shouldn't be used in the output binary program, they still show up in it, and affect the checksum, so we better make them zeroes.
This error was reported by valgrind:
``` libtool --mode=execute valgrind --track-origins=yes vkd3d-build/tests/shader_runner vkd3d/tests/hlsl/static-initializer.shader_test ```
``` ==46180== Conditional jump or move depends on uninitialised value(s) ==46180== at 0x48D98C7: parse_dxbc.isra.0 (dxbc.c:182) ==46180== by 0x48DA044: vkd3d_shader_parse_dxbc (dxbc.c:308) ==46180== by 0x488D1B6: vkd3d_shader_parse_dxbc_source_type (vkd3d_shader_utils.h:37) ==46180== by 0x488D1B6: create_shader_stage.isra.0 (state.c:1988) ==46180== by 0x48926B6: d3d12_pipeline_state_init_graphics (state.c:3084) ==46180== by 0x4893A96: d3d12_pipeline_state_create_graphics (state.c:3280) ==46180== by 0x4878498: d3d12_device_CreateGraphicsPipelineState (device.c:2619) ==46180== by 0x1FFEFFECC7: ??? ==46180== by 0xE8: ??? ==46180== by 0x47: ??? ==46180== by 0x61: ??? ==46180== by 0x660066000000023: ??? ==46180== by 0x661066100000044: ??? ==46180== Uninitialised value was created by a stack allocation ==46180== at 0x48F3FF0: hlsl_fold_constant_swizzles (hlsl_constant_ops.c:1010) ```
Thank you valgrind! :smile:
-- v4: vkd3d-shader/tpf: Avoid reading constant value components beyond type's width (Valgrind).