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carbon-lang/toolchain/check/testdata/eval/symbolic.carbon
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Geoff Romer d264f14027 Clean up handling of Call params (#5061) 
- Explicitly document that `*Param` and `*ParamPattern` insts represent
`Call` parameters.
- Stop wrapping compile-time parameter patterns in `ValueParamPattern`
insts (because they aren't `Call` parameters).
- Document how `MatchContext::results_` relates to the `Call`
parameters, and be more consistent about when it's written to.
- Remove `RuntimeParamIndex::Unknown`: we no longer need to distinguish
"this `Param`'s runtime index is unknown" from "this `Param` isn't a
runtime param", because we no longer use `Param`s at all in the latter
case.
- Rename `RuntimeParamIndex` to `CallParamIndex`.

As a side effect of removing the `ValueParamPattern` insts, this fixes a
minor diagnostic bug where `NoteInitializingParam` didn't identify the
specific parameter that led to a deduction failure, because it expects
generic parameters to only be represented by `SymbolicBindingPattern`s,
but before this change they could be wrapped in `ValueParamPattern`s.
2025-03-04 21:01:59 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/eval/symbolic.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/eval/symbolic.carbon
// Check that we propagate the `symbolic` tag through evaluations.
fn F(T:! type) {
var u: (T*, const T);
var v: {.a: T};
var w: array(T, 5);
}
fn G(N:! i32) {
var k: array(i32, N);
}
// CHECK:STDOUT: --- symbolic.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %ptr.79f: type = ptr_type %T [symbolic]
// CHECK:STDOUT: %const: type = const_type %T [symbolic]
// CHECK:STDOUT: %tuple.type.24b: type = tuple_type (type, type) [concrete]
// CHECK:STDOUT: %tuple.type.4f2: type = tuple_type (%ptr.79f, %const) [symbolic]
// CHECK:STDOUT: %require_complete.155: <witness> = require_complete_type %tuple.type.4f2 [symbolic]
// CHECK:STDOUT: %struct_type.a: type = struct_type {.a: %T} [symbolic]
// CHECK:STDOUT: %require_complete.28a: <witness> = require_complete_type %struct_type.a [symbolic]
// CHECK:STDOUT: %int_5: Core.IntLiteral = int_value 5 [concrete]
// CHECK:STDOUT: %array_type.ec2: type = array_type %int_5, %T [symbolic]
// CHECK:STDOUT: %require_complete.fe1: <witness> = require_complete_type %array_type.ec2 [symbolic]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %N.51e: %i32 = bind_symbolic_name N, 0 [symbolic]
// CHECK:STDOUT: %N.patt.8e2: %i32 = symbolic_binding_pattern N, 0 [symbolic]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
// CHECK:STDOUT: %Convert.type.71e: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [concrete]
// CHECK:STDOUT: %impl_witness.023: <witness> = impl_witness (imports.%Core.import_ref.85c), @impl.971(%int_32) [concrete]
// CHECK:STDOUT: %Convert.type.4ad: type = fn_type @Convert.3, @impl.971(%int_32) [concrete]
// CHECK:STDOUT: %Convert.960: %Convert.type.4ad = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.facet: %ImplicitAs.type.2fd = facet_value %i32, %impl_witness.023 [concrete]
// CHECK:STDOUT: %.10e: type = fn_type_with_self_type %Convert.type.71e, %ImplicitAs.facet [concrete]
// CHECK:STDOUT: %Convert.bound: <bound method> = bound_method %N.51e, %Convert.960 [symbolic]
// CHECK:STDOUT: %Convert.specific_fn: <specific function> = specific_function %Convert.bound, @Convert.3(%int_32) [symbolic]
// CHECK:STDOUT: %int.convert_checked: init Core.IntLiteral = call %Convert.specific_fn(%N.51e) [symbolic]
// CHECK:STDOUT: %array_type.b04: type = array_type %int.convert_checked, %i32 [symbolic]
// CHECK:STDOUT: %require_complete.9dc: <witness> = require_complete_type %array_type.b04 [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: .ImplicitAs = %Core.ImplicitAs
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT: %T.patt.loc12_6.1: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc12_6.2 (constants.%T.patt)]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %T.loc12_6.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc12_6.2 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %N.patt.loc18_6.1: %i32 = symbolic_binding_pattern N, 0 [symbolic = %N.patt.loc18_6.2 (constants.%N.patt.8e2)]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc18: type = splice_block %i32.loc18 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc18: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc18: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %N.loc18_6.1: %i32 = bind_symbolic_name N, 0 [symbolic = %N.loc18_6.2 (constants.%N.51e)]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @F(%T.loc12_6.1: type) {
// CHECK:STDOUT: %T.loc12_6.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc12_6.2 (constants.%T)]
// CHECK:STDOUT: %T.patt.loc12_6.2: type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc12_6.2 (constants.%T.patt)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %ptr.loc13_12.2: type = ptr_type @F.%T.loc12_6.2 (%T) [symbolic = %ptr.loc13_12.2 (constants.%ptr.79f)]
// CHECK:STDOUT: %const.loc13_15.2: type = const_type @F.%T.loc12_6.2 (%T) [symbolic = %const.loc13_15.2 (constants.%const)]
// CHECK:STDOUT: %tuple.type: type = tuple_type (@F.%ptr.loc13_12.2 (%ptr.79f), @F.%const.loc13_15.2 (%const)) [symbolic = %tuple.type (constants.%tuple.type.4f2)]
// CHECK:STDOUT: %require_complete.loc13: <witness> = require_complete_type @F.%tuple.type (%tuple.type.4f2) [symbolic = %require_complete.loc13 (constants.%require_complete.155)]
// CHECK:STDOUT: %struct_type.a.loc14_16.2: type = struct_type {.a: @F.%T.loc12_6.2 (%T)} [symbolic = %struct_type.a.loc14_16.2 (constants.%struct_type.a)]
// CHECK:STDOUT: %require_complete.loc14: <witness> = require_complete_type @F.%struct_type.a.loc14_16.2 (%struct_type.a) [symbolic = %require_complete.loc14 (constants.%require_complete.28a)]
// CHECK:STDOUT: %array_type.loc15_20.2: type = array_type constants.%int_5, @F.%T.loc12_6.2 (%T) [symbolic = %array_type.loc15_20.2 (constants.%array_type.ec2)]
// CHECK:STDOUT: %require_complete.loc15: <witness> = require_complete_type @F.%array_type.loc15_20.2 (%array_type.ec2) [symbolic = %require_complete.loc15 (constants.%require_complete.fe1)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn(%T.patt.loc12_6.1: type) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %u.patt: @F.%tuple.type (%tuple.type.4f2) = binding_pattern u
// CHECK:STDOUT: %.loc13_3: @F.%tuple.type (%tuple.type.4f2) = var_pattern %u.patt
// CHECK:STDOUT: }
// CHECK:STDOUT: %u.var: ref @F.%tuple.type (%tuple.type.4f2) = var u
// CHECK:STDOUT: %.loc13_22.1: type = splice_block %.loc13_22.3 [symbolic = %tuple.type (constants.%tuple.type.4f2)] {
// CHECK:STDOUT: %T.ref.loc13_11: type = name_ref T, %T.loc12_6.1 [symbolic = %T.loc12_6.2 (constants.%T)]
// CHECK:STDOUT: %ptr.loc13_12.1: type = ptr_type %T [symbolic = %ptr.loc13_12.2 (constants.%ptr.79f)]
// CHECK:STDOUT: %T.ref.loc13_21: type = name_ref T, %T.loc12_6.1 [symbolic = %T.loc12_6.2 (constants.%T)]
// CHECK:STDOUT: %const.loc13_15.1: type = const_type %T [symbolic = %const.loc13_15.2 (constants.%const)]
// CHECK:STDOUT: %.loc13_22.2: %tuple.type.24b = tuple_literal (%ptr.loc13_12.1, %const.loc13_15.1)
// CHECK:STDOUT: %.loc13_22.3: type = converted %.loc13_22.2, constants.%tuple.type.4f2 [symbolic = %tuple.type (constants.%tuple.type.4f2)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %u: ref @F.%tuple.type (%tuple.type.4f2) = bind_name u, %u.var
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %v.patt: @F.%struct_type.a.loc14_16.2 (%struct_type.a) = binding_pattern v
// CHECK:STDOUT: %.loc14_3: @F.%struct_type.a.loc14_16.2 (%struct_type.a) = var_pattern %v.patt
// CHECK:STDOUT: }
// CHECK:STDOUT: %v.var: ref @F.%struct_type.a.loc14_16.2 (%struct_type.a) = var v
// CHECK:STDOUT: %.loc14_16: type = splice_block %struct_type.a.loc14_16.1 [symbolic = %struct_type.a.loc14_16.2 (constants.%struct_type.a)] {
// CHECK:STDOUT: %T.ref.loc14: type = name_ref T, %T.loc12_6.1 [symbolic = %T.loc12_6.2 (constants.%T)]
// CHECK:STDOUT: %struct_type.a.loc14_16.1: type = struct_type {.a: %T} [symbolic = %struct_type.a.loc14_16.2 (constants.%struct_type.a)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %v: ref @F.%struct_type.a.loc14_16.2 (%struct_type.a) = bind_name v, %v.var
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %w.patt: @F.%array_type.loc15_20.2 (%array_type.ec2) = binding_pattern w
// CHECK:STDOUT: %.loc15_3: @F.%array_type.loc15_20.2 (%array_type.ec2) = var_pattern %w.patt
// CHECK:STDOUT: }
// CHECK:STDOUT: %w.var: ref @F.%array_type.loc15_20.2 (%array_type.ec2) = var w
// CHECK:STDOUT: %.loc15_20: type = splice_block %array_type.loc15_20.1 [symbolic = %array_type.loc15_20.2 (constants.%array_type.ec2)] {
// CHECK:STDOUT: %T.ref.loc15: type = name_ref T, %T.loc12_6.1 [symbolic = %T.loc12_6.2 (constants.%T)]
// CHECK:STDOUT: %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5]
// CHECK:STDOUT: %array_type.loc15_20.1: type = array_type %int_5, %T [symbolic = %array_type.loc15_20.2 (constants.%array_type.ec2)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %w: ref @F.%array_type.loc15_20.2 (%array_type.ec2) = bind_name w, %w.var
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @G(%N.loc18_6.1: %i32) {
// CHECK:STDOUT: %N.loc18_6.2: %i32 = bind_symbolic_name N, 0 [symbolic = %N.loc18_6.2 (constants.%N.51e)]
// CHECK:STDOUT: %N.patt.loc18_6.2: %i32 = symbolic_binding_pattern N, 0 [symbolic = %N.patt.loc18_6.2 (constants.%N.patt.8e2)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Convert.bound: <bound method> = bound_method %N.loc18_6.2, constants.%Convert.960 [symbolic = %Convert.bound (constants.%Convert.bound)]
// CHECK:STDOUT: %Convert.specific_fn: <specific function> = specific_function %Convert.bound, @Convert.3(constants.%int_32) [symbolic = %Convert.specific_fn (constants.%Convert.specific_fn)]
// CHECK:STDOUT: %int.convert_checked.loc19_21.2: init Core.IntLiteral = call %Convert.specific_fn(%N.loc18_6.2) [symbolic = %int.convert_checked.loc19_21.2 (constants.%int.convert_checked)]
// CHECK:STDOUT: %array_type.loc19_22.2: type = array_type %int.convert_checked.loc19_21.2, %i32 [symbolic = %array_type.loc19_22.2 (constants.%array_type.b04)]
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type @G.%array_type.loc19_22.2 (%array_type.b04) [symbolic = %require_complete (constants.%require_complete.9dc)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn(%N.patt.loc18_6.1: %i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %k.patt: @G.%array_type.loc19_22.2 (%array_type.b04) = binding_pattern k
// CHECK:STDOUT: %.loc19_3: @G.%array_type.loc19_22.2 (%array_type.b04) = var_pattern %k.patt
// CHECK:STDOUT: }
// CHECK:STDOUT: %k.var: ref @G.%array_type.loc19_22.2 (%array_type.b04) = var k
// CHECK:STDOUT: %.loc19_22: type = splice_block %array_type.loc19_22.1 [symbolic = %array_type.loc19_22.2 (constants.%array_type.b04)] {
// CHECK:STDOUT: %int_32.loc19: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc19: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: %N.ref: %i32 = name_ref N, %N.loc18_6.1 [symbolic = %N.loc18_6.2 (constants.%N.51e)]
// CHECK:STDOUT: %impl.elem0: %.10e = impl_witness_access constants.%impl_witness.023, element0 [concrete = constants.%Convert.960]
// CHECK:STDOUT: %bound_method: <bound method> = bound_method %N.ref, %impl.elem0 [symbolic = %Convert.bound (constants.%Convert.bound)]
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %bound_method, @Convert.3(constants.%int_32) [symbolic = %Convert.specific_fn (constants.%Convert.specific_fn)]
// CHECK:STDOUT: %int.convert_checked.loc19_21.1: init Core.IntLiteral = call %specific_fn(%N.ref) [symbolic = %int.convert_checked.loc19_21.2 (constants.%int.convert_checked)]
// CHECK:STDOUT: %.loc19_21.1: Core.IntLiteral = value_of_initializer %int.convert_checked.loc19_21.1 [symbolic = %int.convert_checked.loc19_21.2 (constants.%int.convert_checked)]
// CHECK:STDOUT: %.loc19_21.2: Core.IntLiteral = converted %N.ref, %.loc19_21.1 [symbolic = %int.convert_checked.loc19_21.2 (constants.%int.convert_checked)]
// CHECK:STDOUT: %array_type.loc19_22.1: type = array_type %.loc19_21.2, %i32 [symbolic = %array_type.loc19_22.2 (constants.%array_type.b04)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %k: ref @G.%array_type.loc19_22.2 (%array_type.b04) = bind_name k, %k.var
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @F(constants.%T) {
// CHECK:STDOUT: %T.loc12_6.2 => constants.%T
// CHECK:STDOUT: %T.patt.loc12_6.2 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(constants.%N.51e) {
// CHECK:STDOUT: %N.loc18_6.2 => constants.%N.51e
// CHECK:STDOUT: %N.patt.loc18_6.2 => constants.%N.51e
// CHECK:STDOUT: }
// CHECK:STDOUT:
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