[spirv] Generate IR expectations.

This CL generates the expectations for the SPIR-V IR backend.

Bug: 354711610
Change-Id: I70b32c31e9c99637f20abc3299874cec49cb1d0e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/201274
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
diff --git a/test/tint/builtins/gen/var/select/3a14be.wgsl.expected.ir.spvasm b/test/tint/builtins/gen/var/select/3a14be.wgsl.expected.ir.spvasm
new file mode 100644
index 0000000..3fa0580e
--- /dev/null
+++ b/test/tint/builtins/gen/var/select/3a14be.wgsl.expected.ir.spvasm
@@ -0,0 +1,91 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 1
+; Bound: 50
+; Schema: 0
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Fragment %fragment_main "fragment_main"
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpEntryPoint Vertex %vertex_main "vertex_main" %vertex_main_position_Output %vertex_main___point_size_Output
+               OpExecutionMode %fragment_main OriginUpperLeft
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %vertex_main_position_Output "vertex_main_position_Output"
+               OpName %vertex_main___point_size_Output "vertex_main___point_size_Output"
+               OpName %select_3a14be "select_3a14be"
+               OpName %arg_2 "arg_2"
+               OpName %res "res"
+               OpName %fragment_main "fragment_main"
+               OpName %compute_main "compute_main"
+               OpName %vertex_main_inner "vertex_main_inner"
+               OpMemberName %VertexOutput 0 "pos"
+               OpName %VertexOutput "VertexOutput"
+               OpName %out "out"
+               OpName %vertex_main "vertex_main"
+               OpDecorate %vertex_main_position_Output BuiltIn Position
+               OpDecorate %vertex_main___point_size_Output BuiltIn PointSize
+               OpMemberDecorate %VertexOutput 0 Offset 0
+      %float = OpTypeFloat 32
+    %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+%vertex_main_position_Output = OpVariable %_ptr_Output_v4float Output
+%_ptr_Output_float = OpTypePointer Output %float
+%vertex_main___point_size_Output = OpVariable %_ptr_Output_float Output
+       %void = OpTypeVoid
+          %9 = OpTypeFunction %void
+       %bool = OpTypeBool
+%_ptr_Function_bool = OpTypePointer Function %bool
+       %true = OpConstantTrue %bool
+     %v2bool = OpTypeVector %bool 2
+        %int = OpTypeInt 32 1
+      %v2int = OpTypeVector %int 2
+      %int_1 = OpConstant %int 1
+         %21 = OpConstantComposite %v2int %int_1 %int_1
+%_ptr_Function_v2int = OpTypePointer Function %v2int
+%VertexOutput = OpTypeStruct %v4float
+         %33 = OpTypeFunction %VertexOutput
+%_ptr_Function_VertexOutput = OpTypePointer Function %VertexOutput
+         %37 = OpConstantNull %VertexOutput
+%_ptr_Function_v4float = OpTypePointer Function %v4float
+       %uint = OpTypeInt 32 0
+     %uint_0 = OpConstant %uint 0
+         %42 = OpConstantNull %v4float
+    %float_1 = OpConstant %float 1
+%select_3a14be = OpFunction %void None %9
+         %10 = OpLabel
+      %arg_2 = OpVariable %_ptr_Function_bool Function
+        %res = OpVariable %_ptr_Function_v2int Function
+               OpStore %arg_2 %true
+         %15 = OpLoad %bool %arg_2
+         %17 = OpCompositeConstruct %v2bool %15 %15
+         %18 = OpSelect %v2int %17 %21 %21
+               OpStore %res %18
+               OpReturn
+               OpFunctionEnd
+%fragment_main = OpFunction %void None %9
+         %26 = OpLabel
+         %27 = OpFunctionCall %void %select_3a14be
+               OpReturn
+               OpFunctionEnd
+%compute_main = OpFunction %void None %9
+         %29 = OpLabel
+         %30 = OpFunctionCall %void %select_3a14be
+               OpReturn
+               OpFunctionEnd
+%vertex_main_inner = OpFunction %VertexOutput None %33
+         %34 = OpLabel
+        %out = OpVariable %_ptr_Function_VertexOutput Function %37
+         %38 = OpAccessChain %_ptr_Function_v4float %out %uint_0
+               OpStore %38 %42
+         %43 = OpFunctionCall %void %select_3a14be
+         %44 = OpLoad %VertexOutput %out
+               OpReturnValue %44
+               OpFunctionEnd
+%vertex_main = OpFunction %void None %9
+         %46 = OpLabel
+         %47 = OpFunctionCall %VertexOutput %vertex_main_inner
+         %48 = OpCompositeExtract %v4float %47 0
+               OpStore %vertex_main_position_Output %48
+               OpStore %vertex_main___point_size_Output %float_1
+               OpReturn
+               OpFunctionEnd