Ben Clayton 47dd30117d tint/resolver: Resolve builtin structs
Allow the resolver to understand builtin structures, like
__frexp_result_f16. This allows backend transforms to declare the types,
even if they're "untypable" by the user.

Bug: chromium:1430309
Change-Id: I392709118182a058f737ccf1b7b46fc6b0b7264d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/129482
Kokoro: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
2023-04-26 18:27:53 +00:00

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; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 36
; Schema: 0
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %compute_main "compute_main" %local_invocation_index_1
OpExecutionMode %compute_main LocalSize 1 1 1
OpName %local_invocation_index_1 "local_invocation_index_1"
OpName %arg_0 "arg_0"
OpName %atomicCompareExchangeWeak_83580d "atomicCompareExchangeWeak_83580d"
OpName %__atomic_compare_exchange_result_u32 "__atomic_compare_exchange_result_u32"
OpMemberName %__atomic_compare_exchange_result_u32 0 "old_value"
OpMemberName %__atomic_compare_exchange_result_u32 1 "exchanged"
OpName %res "res"
OpName %compute_main_inner "compute_main_inner"
OpName %local_invocation_index "local_invocation_index"
OpName %compute_main "compute_main"
OpDecorate %local_invocation_index_1 BuiltIn LocalInvocationIndex
OpMemberDecorate %__atomic_compare_exchange_result_u32 0 Offset 0
OpMemberDecorate %__atomic_compare_exchange_result_u32 1 Offset 4
%uint = OpTypeInt 32 0
%_ptr_Input_uint = OpTypePointer Input %uint
%local_invocation_index_1 = OpVariable %_ptr_Input_uint Input
%_ptr_Workgroup_uint = OpTypePointer Workgroup %uint
%arg_0 = OpVariable %_ptr_Workgroup_uint Workgroup
%void = OpTypeVoid
%6 = OpTypeFunction %void
%bool = OpTypeBool
%__atomic_compare_exchange_result_u32 = OpTypeStruct %uint %bool
%uint_2 = OpConstant %uint 2
%uint_0 = OpConstant %uint 0
%uint_1 = OpConstant %uint 1
%_ptr_Function___atomic_compare_exchange_result_u32 = OpTypePointer Function %__atomic_compare_exchange_result_u32
%21 = OpConstantNull %__atomic_compare_exchange_result_u32
%22 = OpTypeFunction %void %uint
%28 = OpConstantNull %uint
%uint_264 = OpConstant %uint 264
%atomicCompareExchangeWeak_83580d = OpFunction %void None %6
%9 = OpLabel
%res = OpVariable %_ptr_Function___atomic_compare_exchange_result_u32 Function %21
%17 = OpAtomicCompareExchange %uint %arg_0 %uint_2 %uint_0 %uint_0 %uint_1 %uint_1
%18 = OpIEqual %bool %17 %uint_1
%10 = OpCompositeConstruct %__atomic_compare_exchange_result_u32 %17 %18
OpStore %res %10
OpReturn
OpFunctionEnd
%compute_main_inner = OpFunction %void None %22
%local_invocation_index = OpFunctionParameter %uint
%25 = OpLabel
OpAtomicStore %arg_0 %uint_2 %uint_0 %28
OpControlBarrier %uint_2 %uint_2 %uint_264
%31 = OpFunctionCall %void %atomicCompareExchangeWeak_83580d
OpReturn
OpFunctionEnd
%compute_main = OpFunction %void None %6
%33 = OpLabel
%35 = OpLoad %uint %local_invocation_index_1
%34 = OpFunctionCall %void %compute_main_inner %35
OpReturn
OpFunctionEnd