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carbon-lang/explorer/trace_testdata/full_trace.carbon
T
Prabhat Sachdeva 126d45a1f1 Trace stack and memory only when there is change in state (#2982) 
Add state (stack and heap information) to the trace stream only when
there is a change in state, this would prevent consecutive repetition of
state information in the trace output.

Checks it based on change in size of the stack and heap, added
`std::pair<int, int> stack_heap_sizes` in `Interpreter` to store size of
stack and heap for comparison.
2023-07-21 05:02:00 +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
// CHECK:STDOUT: ********** source program **********
// CHECK:STDOUT: interface TestInterface {
// CHECK:STDOUT: }
// CHECK:STDOUT: namespace N;fn Foo (n: i32)-> i32 {
// CHECK:STDOUT: {
// CHECK:STDOUT: return (n + 1);
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: }
// CHECK:STDOUT: fn Main ()-> i32 {
// CHECK:STDOUT: {
// CHECK:STDOUT: var x: i32 = N.Foo(0);
// CHECK:STDOUT: return x;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: }
// CHECK:STDOUT: ********** resolving names **********
package ExplorerTest api;
// CHECK:STDOUT: --- declared `TestInterface` as `interface TestInterface` in `package` (full_trace.carbon:[[@LINE+1]])
interface TestInterface {}
// CHECK:STDOUT: --- declared `N` as `namespace N` in `package` (full_trace.carbon:[[@LINE+1]])
namespace N;
// CHECK:STDOUT: --- resolved `N` as `namespace N` in `package` (full_trace.carbon:[[@LINE+1]])
fn N.Foo(n: i32) -> i32 {
return n + 1;
// CHECK:STDOUT: --- declared `Foo` as `fn N.Foo` in `namespace N` (full_trace.carbon:[[@LINE+1]])
}
fn Main() -> i32 {
var x: i32 = N.Foo(0);
return x;
// CHECK:STDOUT: --- declared `Main` as `fn Main` in `package` (full_trace.carbon:[[@LINE+310]])
// CHECK:STDOUT: ** resolving decl `interface TestInterface` (full_trace.carbon:[[@LINE-15]])
// CHECK:STDOUT: --- marked `TestInterface` declared but not usable in `package`
// CHECK:STDOUT: --- marked `TestInterface` usable in `package`
// CHECK:STDOUT: --- declared `Self` as `Self` in `interface TestInterface` (full_trace.carbon:[[@LINE-18]])
// CHECK:STDOUT: ** finished resolving decl `interface TestInterface` (full_trace.carbon:[[@LINE-19]])
// CHECK:STDOUT: ** resolving decl `namespace N` (full_trace.carbon:[[@LINE-17]])
// CHECK:STDOUT: --- marked `N` usable in `package`
// CHECK:STDOUT: ** finished resolving decl `namespace N` (full_trace.carbon:[[@LINE-19]])
// CHECK:STDOUT: ** resolving decl `fn N.Foo` (full_trace.carbon:[[@LINE-14]])
// CHECK:STDOUT: --- resolved `N` as `namespace N` in `package` (full_trace.carbon:[[@LINE-18]])
// CHECK:STDOUT: --- marked `Foo` declared but not usable in `namespace N`
// CHECK:STDOUT: --- declared `n` as `n` in `fn N.Foo` (full_trace.carbon:[[@LINE-20]])
// CHECK:STDOUT: --- marked `Foo` usable in `namespace N`
// CHECK:STDOUT: ** resolving stmt `{return (n + 1);}` (full_trace.carbon:[[@LINE-19]])
// CHECK:STDOUT: ** resolving stmt `return (n + 1);` (full_trace.carbon:[[@LINE-22]])
// CHECK:STDOUT: --- resolved `n` as `n` in `fn N.Foo` (full_trace.carbon:[[@LINE-23]])
// CHECK:STDOUT: ** finished resolving stmt `return (n + 1);` (full_trace.carbon:[[@LINE-24]])
// CHECK:STDOUT: ** finished resolving stmt `{return (n + 1);}` (full_trace.carbon:[[@LINE-23]])
// CHECK:STDOUT: ** finished resolving decl `fn N.Foo` (full_trace.carbon:[[@LINE-24]])
// CHECK:STDOUT: ** resolving decl `fn Main` (full_trace.carbon:[[@LINE+290]])
// CHECK:STDOUT: --- marked `Main` declared but not usable in `package`
// CHECK:STDOUT: --- marked `Main` usable in `package`
// CHECK:STDOUT: ** resolving stmt `{var x: i32 = N.Foo(0);return x;}` (full_trace.carbon:[[@LINE+287]])
// CHECK:STDOUT: ** resolving stmt `var x: i32 = N.Foo(0);` (full_trace.carbon:[[@LINE-26]])
// CHECK:STDOUT: --- resolved `N` as `namespace N` in `package` (full_trace.carbon:[[@LINE-27]])
// CHECK:STDOUT: --- resolved `Foo` as `fn N.Foo` in `namespace N` (full_trace.carbon:[[@LINE-28]])
// CHECK:STDOUT: --- declared `x` as `x` in `{var x: i32 = N.Foo(0);return x;}` (full_trace.carbon:[[@LINE-29]])
// CHECK:STDOUT: ** finished resolving stmt `var x: i32 = N.Foo(0);` (full_trace.carbon:[[@LINE-30]])
// CHECK:STDOUT: ** resolving stmt `return x;` (full_trace.carbon:[[@LINE-30]])
// CHECK:STDOUT: --- resolved `x` as `x` in `{var x: i32 = N.Foo(0);return x;}` (full_trace.carbon:[[@LINE-31]])
// CHECK:STDOUT: ** finished resolving stmt `return x;` (full_trace.carbon:[[@LINE-32]])
// CHECK:STDOUT: ** finished resolving stmt `{var x: i32 = N.Foo(0);return x;}` (full_trace.carbon:[[@LINE+278]])
// CHECK:STDOUT: ** finished resolving decl `fn Main` (full_trace.carbon:[[@LINE+277]])
// CHECK:STDOUT: --- resolved `Main` as `fn Main` in `package` (<Main()>:0)
// CHECK:STDOUT: ********** resolving control flow **********
// CHECK:STDOUT: ********** type checking **********
// CHECK:STDOUT: ** declaring interface TestInterface
// CHECK:STDOUT: ** finished declaring interface TestInterface
// CHECK:STDOUT: checking InterfaceDeclaration
// CHECK:STDOUT: ** checking interface TestInterface
// CHECK:STDOUT: impl declarations:{{ }}
// CHECK:STDOUT: impl declarations: bool as interface EqWith(U = bool), i32 as interface EqWith(U = i32), String as interface EqWith(U = String), i32 as interface CompareWith(U = i32), String as interface CompareWith(U = String), i32 as interface LessWith(U = i32), String as interface LessWith(U = String), i32 as interface LessEqWith(U = i32), String as interface LessEqWith(U = String), i32 as interface GreaterWith(U = i32), String as interface GreaterWith(U = String), i32 as interface GreaterEqWith(U = i32), String as interface GreaterEqWith(U = String), i32 as interface Negate, i32 as interface AddWith(U = i32), i32 as interface SubWith(U = i32), i32 as interface MulWith(U = i32), i32 as interface DivWith(U = i32), i32 as interface ModWith(U = i32), i32 as interface BitComplement, i32 as interface BitAndWith(U = i32), i32 as interface BitOrWith(U = i32), i32 as interface BitXorWith(U = i32), i32 as interface LeftShiftWith(U = i32), i32 as interface RightShiftWith(U = i32), i32 as interface Inc, i32 as interface Dec, U as interface __EqualConverter [0], (T1,) as interface As(T = (U1,)) [0, 0, 0; 1, 1, 0, 0, 0], (T1, T2) as interface As(T = (U1, U2)) [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1], (T1, U1) as interface EqWith(U = (T2, U2)) [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1], (T1, T2, T3) as interface As(T = (U1, U2, U3)) [0, 0, 0; 0, 0, 1; 0, 0, 2; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1; 1, 1, 0, 0, 2], T as interface ImplicitAs(T = U) [0; 1, 1, 0], T as interface As(T = U) [0; 1, 1, 0], T as interface ImplicitAs(T = U) [0; 1, 1, 0], T as interface As(T = U) [0; 1, 1, 0], T as interface AssignWith(U = U) [0; 1, 1, 0], T as interface AddAssignWith(U = U) [0; 1, 1, 0], T as interface SubAssignWith(U = U) [0; 1, 1, 0], T as interface MulAssignWith(U = U) [0; 1, 1, 0], T as interface DivAssignWith(U = U) [0; 1, 1, 0], T as interface ModAssignWith(U = U) [0; 1, 1, 0], T as interface BitAndAssignWith(U = U) [0; 1, 1, 0], T as interface BitOrAssignWith(U = U) [0; 1, 1, 0], T as interface BitXorAssignWith(U = U) [0; 1, 1, 0], T as interface LeftShiftAssignWith(U = U) [0; 1, 1, 0], T as interface RightShiftAssignWith(U = U) [0; 1, 1, 0]
// CHECK:STDOUT: ** finished checking interface TestInterface
// CHECK:STDOUT: checking NamespaceDeclaration
// CHECK:STDOUT: ** declaring function Foo
// CHECK:STDOUT: checking TuplePattern (n: i32)
// CHECK:STDOUT: checking BindingPattern n: i32
// CHECK:STDOUT: checking ExpressionPattern i32
// CHECK:STDOUT: checking IntTypeLiteral i32
// CHECK:STDOUT: (+) stack-push: i32 .0.
// CHECK:STDOUT: (+) stack-push: i32 .0.
// CHECK:STDOUT: --- step exp i32 .0. (full_trace.carbon:[[@LINE-60]]) --->
// CHECK:STDOUT: (-) stack-pop: i32 .0.
// CHECK:STDOUT: (-) stack-pop: i32 .1. {{[[][[]}}i32]]
// CHECK:STDOUT: finished checking tuple pattern field n: i32
// CHECK:STDOUT: checking IntTypeLiteral i32
// CHECK:STDOUT: (+) stack-push: i32 .0.
// CHECK:STDOUT: (+) stack-push: i32 .0.
// CHECK:STDOUT: --- step exp i32 .0. (full_trace.carbon:[[@LINE-67]]) --->
// CHECK:STDOUT: (-) stack-pop: i32 .0.
// CHECK:STDOUT: (-) stack-pop: i32 .1. {{[[][[]}}i32]]
// CHECK:STDOUT: ** finished declaring function Foo of type fn (i32,) -> i32
// CHECK:STDOUT: checking FunctionDeclaration
// CHECK:STDOUT: ** checking function Foo
// CHECK:STDOUT: impl declarations:{{ }}
// CHECK:STDOUT: impl declarations: bool as interface EqWith(U = bool), i32 as interface EqWith(U = i32), String as interface EqWith(U = String), i32 as interface CompareWith(U = i32), String as interface CompareWith(U = String), i32 as interface LessWith(U = i32), String as interface LessWith(U = String), i32 as interface LessEqWith(U = i32), String as interface LessEqWith(U = String), i32 as interface GreaterWith(U = i32), String as interface GreaterWith(U = String), i32 as interface GreaterEqWith(U = i32), String as interface GreaterEqWith(U = String), i32 as interface Negate, i32 as interface AddWith(U = i32), i32 as interface SubWith(U = i32), i32 as interface MulWith(U = i32), i32 as interface DivWith(U = i32), i32 as interface ModWith(U = i32), i32 as interface BitComplement, i32 as interface BitAndWith(U = i32), i32 as interface BitOrWith(U = i32), i32 as interface BitXorWith(U = i32), i32 as interface LeftShiftWith(U = i32), i32 as interface RightShiftWith(U = i32), i32 as interface Inc, i32 as interface Dec, U as interface __EqualConverter [0], (T1,) as interface As(T = (U1,)) [0, 0, 0; 1, 1, 0, 0, 0], (T1, T2) as interface As(T = (U1, U2)) [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1], (T1, U1) as interface EqWith(U = (T2, U2)) [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1], (T1, T2, T3) as interface As(T = (U1, U2, U3)) [0, 0, 0; 0, 0, 1; 0, 0, 2; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1; 1, 1, 0, 0, 2], T as interface ImplicitAs(T = U) [0; 1, 1, 0], T as interface As(T = U) [0; 1, 1, 0], T as interface ImplicitAs(T = U) [0; 1, 1, 0], T as interface As(T = U) [0; 1, 1, 0], T as interface AssignWith(U = U) [0; 1, 1, 0], T as interface AddAssignWith(U = U) [0; 1, 1, 0], T as interface SubAssignWith(U = U) [0; 1, 1, 0], T as interface MulAssignWith(U = U) [0; 1, 1, 0], T as interface DivAssignWith(U = U) [0; 1, 1, 0], T as interface ModAssignWith(U = U) [0; 1, 1, 0], T as interface BitAndAssignWith(U = U) [0; 1, 1, 0], T as interface BitOrAssignWith(U = U) [0; 1, 1, 0], T as interface BitXorAssignWith(U = U) [0; 1, 1, 0], T as interface LeftShiftAssignWith(U = U) [0; 1, 1, 0], T as interface RightShiftAssignWith(U = U) [0; 1, 1, 0]
// CHECK:STDOUT: checking Block {
// CHECK:STDOUT: return (n + 1);
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: checking ReturnExpression return (n + 1);
// CHECK:STDOUT: checking OperatorExpression (n + 1)
// CHECK:STDOUT: checking IdentifierExpression n
// CHECK:STDOUT: checking IntLiteral 1
// CHECK:STDOUT: ** finished checking function Foo
// CHECK:STDOUT: ** declaring function Main
// CHECK:STDOUT: checking TuplePattern ()
// CHECK:STDOUT: checking IntTypeLiteral i32
// CHECK:STDOUT: (+) stack-push: i32 .0.
// CHECK:STDOUT: (+) stack-push: i32 .0.
// CHECK:STDOUT: --- step exp i32 .0. (full_trace.carbon:[[@LINE-84]]) --->
// CHECK:STDOUT: (-) stack-pop: i32 .0.
// CHECK:STDOUT: (-) stack-pop: i32 .1. {{[[][[]}}i32]]
// CHECK:STDOUT: ** finished declaring function Main of type fn () -> i32
// CHECK:STDOUT: checking FunctionDeclaration
// CHECK:STDOUT: ** checking function Main
// CHECK:STDOUT: impl declarations:{{ }}
// CHECK:STDOUT: impl declarations: bool as interface EqWith(U = bool), i32 as interface EqWith(U = i32), String as interface EqWith(U = String), i32 as interface CompareWith(U = i32), String as interface CompareWith(U = String), i32 as interface LessWith(U = i32), String as interface LessWith(U = String), i32 as interface LessEqWith(U = i32), String as interface LessEqWith(U = String), i32 as interface GreaterWith(U = i32), String as interface GreaterWith(U = String), i32 as interface GreaterEqWith(U = i32), String as interface GreaterEqWith(U = String), i32 as interface Negate, i32 as interface AddWith(U = i32), i32 as interface SubWith(U = i32), i32 as interface MulWith(U = i32), i32 as interface DivWith(U = i32), i32 as interface ModWith(U = i32), i32 as interface BitComplement, i32 as interface BitAndWith(U = i32), i32 as interface BitOrWith(U = i32), i32 as interface BitXorWith(U = i32), i32 as interface LeftShiftWith(U = i32), i32 as interface RightShiftWith(U = i32), i32 as interface Inc, i32 as interface Dec, U as interface __EqualConverter [0], (T1,) as interface As(T = (U1,)) [0, 0, 0; 1, 1, 0, 0, 0], (T1, T2) as interface As(T = (U1, U2)) [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1], (T1, U1) as interface EqWith(U = (T2, U2)) [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1], (T1, T2, T3) as interface As(T = (U1, U2, U3)) [0, 0, 0; 0, 0, 1; 0, 0, 2; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1; 1, 1, 0, 0, 2], T as interface ImplicitAs(T = U) [0; 1, 1, 0], T as interface As(T = U) [0; 1, 1, 0], T as interface ImplicitAs(T = U) [0; 1, 1, 0], T as interface As(T = U) [0; 1, 1, 0], T as interface AssignWith(U = U) [0; 1, 1, 0], T as interface AddAssignWith(U = U) [0; 1, 1, 0], T as interface SubAssignWith(U = U) [0; 1, 1, 0], T as interface MulAssignWith(U = U) [0; 1, 1, 0], T as interface DivAssignWith(U = U) [0; 1, 1, 0], T as interface ModAssignWith(U = U) [0; 1, 1, 0], T as interface BitAndAssignWith(U = U) [0; 1, 1, 0], T as interface BitOrAssignWith(U = U) [0; 1, 1, 0], T as interface BitXorAssignWith(U = U) [0; 1, 1, 0], T as interface LeftShiftAssignWith(U = U) [0; 1, 1, 0], T as interface RightShiftAssignWith(U = U) [0; 1, 1, 0]
// CHECK:STDOUT: checking Block {
// CHECK:STDOUT: var x: i32 = N.Foo(0);
// CHECK:STDOUT: return x;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: checking VariableDefinition var x: i32 = N.Foo(0);
// CHECK:STDOUT: checking CallExpression N.Foo(0)
// CHECK:STDOUT: checking SimpleMemberAccessExpression N.Foo
// CHECK:STDOUT: checking IdentifierExpression Foo
// CHECK:STDOUT: checking TupleLiteral (0)
// CHECK:STDOUT: checking IntLiteral 0
// CHECK:STDOUT: checking call to function of type fn (i32,) -> i32
// CHECK:STDOUT: with arguments of type: (i32,)
// CHECK:STDOUT: performing argument deduction for bindings:{{ }}
// CHECK:STDOUT: deducing i32 from i32
// CHECK:STDOUT: deduction succeeded with results: {}
// CHECK:STDOUT: checking BindingPattern x: i32, expecting i32
// CHECK:STDOUT: checking ExpressionPattern i32, expecting i32
// CHECK:STDOUT: checking IntTypeLiteral i32
// CHECK:STDOUT: (+) stack-push: i32 .0.
// CHECK:STDOUT: (+) stack-push: i32 .0.
// CHECK:STDOUT: --- step exp i32 .0. (full_trace.carbon:[[@LINE-112]]) --->
// CHECK:STDOUT: (-) stack-pop: i32 .0.
// CHECK:STDOUT: (-) stack-pop: i32 .1. {{[[][[]}}i32]]
// CHECK:STDOUT: checking ReturnExpression return x;
// CHECK:STDOUT: checking IdentifierExpression x
// CHECK:STDOUT: ** finished checking function Main
// CHECK:STDOUT: checking CallExpression Main()
// CHECK:STDOUT: checking IdentifierExpression Main
// CHECK:STDOUT: checking TupleLiteral ()
// CHECK:STDOUT: checking call to function of type fn () -> i32
// CHECK:STDOUT: with arguments of type: ()
// CHECK:STDOUT: performing argument deduction for bindings:{{ }}
// CHECK:STDOUT: deduction succeeded with results: {}
// CHECK:STDOUT: ********** resolving unformed variables **********
// CHECK:STDOUT: ********** printing declarations **********
// CHECK:STDOUT: interface TestInterface {
// CHECK:STDOUT: }
// CHECK:STDOUT: namespace N;fn Foo (n: i32)-> i32 {
// CHECK:STDOUT: {
// CHECK:STDOUT: return (n + 1);
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: }
// CHECK:STDOUT: fn Main ()-> i32 {
// CHECK:STDOUT: {
// CHECK:STDOUT: var x: i32 = N.Foo(0);
// CHECK:STDOUT: return x;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: }
// CHECK:STDOUT: ********** starting execution **********
// CHECK:STDOUT: ********** initializing globals **********
// CHECK:STDOUT: (+) stack-push: interface TestInterface {
// CHECK:STDOUT: }
// CHECK:STDOUT: .0.
// CHECK:STDOUT: --- step decl interface TestInterface .0. (full_trace.carbon:[[@LINE-159]]) --->
// CHECK:STDOUT: (-) stack-pop: interface TestInterface {
// CHECK:STDOUT: }
// CHECK:STDOUT: .0.
// CHECK:STDOUT: (+) stack-push: namespace N; .0.
// CHECK:STDOUT: --- step decl namespace N .0. (full_trace.carbon:[[@LINE-161]]) --->
// CHECK:STDOUT: (-) stack-pop: namespace N; .0.
// CHECK:STDOUT: (+) stack-push: fn Foo (n: i32)-> i32 {
// CHECK:STDOUT: {
// CHECK:STDOUT: return (n + 1);
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: }
// CHECK:STDOUT: .0.
// CHECK:STDOUT: --- step decl fn N.Foo .0. (full_trace.carbon:[[@LINE-164]]) --->
// CHECK:STDOUT: (-) stack-pop: fn Foo (n: i32)-> i32 {
// CHECK:STDOUT: {
// CHECK:STDOUT: return (n + 1);
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: }
// CHECK:STDOUT: .0.
// CHECK:STDOUT: (+) stack-push: fn Main ()-> i32 {
// CHECK:STDOUT: {
// CHECK:STDOUT: var x: i32 = N.Foo(0);
// CHECK:STDOUT: return x;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: }
// CHECK:STDOUT: .0.
// CHECK:STDOUT: --- step decl fn Main .0. (full_trace.carbon:[[@LINE+135]]) --->
// CHECK:STDOUT: (-) stack-pop: fn Main ()-> i32 {
// CHECK:STDOUT: {
// CHECK:STDOUT: var x: i32 = N.Foo(0);
// CHECK:STDOUT: return x;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: }
// CHECK:STDOUT: .0.
// CHECK:STDOUT: ********** calling main function **********
// CHECK:STDOUT: (+) stack-push: Main() .0.
// CHECK:STDOUT: (+) stack-push: Main() .0.
// CHECK:STDOUT: --- step exp Main() .0. (<Main()>:0) --->
// CHECK:STDOUT: (+) stack-push: Main .0.
// CHECK:STDOUT: (+) stack-push: Main .0.
// CHECK:STDOUT: --- step exp Main .0. (<Main()>:0) --->
// CHECK:STDOUT: (-) stack-pop: Main .0.
// CHECK:STDOUT: (-) stack-pop: Main .1. {{[[][[]}}fun<Main>]]
// CHECK:STDOUT: --- step exp Main() .1. (<Main()>:0) --->
// CHECK:STDOUT: (+) stack-push: () .0.
// CHECK:STDOUT: --- step exp () .0. (<Main()>:0) --->
// CHECK:STDOUT: (-) stack-pop: () .0.
// CHECK:STDOUT: --- step exp Main() .2. (<Main()>:0) --->
// CHECK:STDOUT: calling function: fun<Main>
// CHECK:STDOUT: match pattern ()
// CHECK:STDOUT: from value expression with value ()
// CHECK:STDOUT: (+) stack-push: .0. {}
// CHECK:STDOUT: (+) stack-push: {var x: i32 = N.Foo(0);return x;} .0.
// CHECK:STDOUT: --- step stmt {var x: i32 = N.Foo(0);return x;} .0. (full_trace.carbon:[[@LINE+107]]) --->
// CHECK:STDOUT: (+) stack-push: var x: i32 = N.Foo(0); .0.
// CHECK:STDOUT: --- step stmt var x: i32 = N.Foo(0); .0. (full_trace.carbon:[[@LINE-207]]) --->
// CHECK:STDOUT: (+) memory-alloc: #1 `Uninit<i32>` uninitialized
// CHECK:STDOUT: (+) stack-push: N.Foo(0) .0.
// CHECK:STDOUT: --- step exp N.Foo(0) .0. (full_trace.carbon:[[@LINE-210]]) --->
// CHECK:STDOUT: (+) stack-push: N.Foo .0.
// CHECK:STDOUT: (+) stack-push: N.Foo .0.
// CHECK:STDOUT: --- step exp N.Foo .0. (full_trace.carbon:[[@LINE-213]]) --->
// CHECK:STDOUT: (-) stack-pop: N.Foo .0.
// CHECK:STDOUT: (+) stack-push: Foo .0.
// CHECK:STDOUT: --- step exp Foo .0. (full_trace.carbon:[[@LINE-216]]) --->
// CHECK:STDOUT: (-) stack-pop: Foo .0.
// CHECK:STDOUT: (-) stack-pop: N.Foo .1. {{[[][[]}}fun<N.Foo>]]
// CHECK:STDOUT: --- step exp N.Foo(0) .1. (full_trace.carbon:[[@LINE-219]]) --->
// CHECK:STDOUT: (+) stack-push: (0) .0.
// CHECK:STDOUT: --- step exp (0) .0. (full_trace.carbon:[[@LINE-221]]) --->
// CHECK:STDOUT: (+) stack-push: 0 .0.
// CHECK:STDOUT: --- step exp 0 .0. (full_trace.carbon:[[@LINE-223]]) --->
// CHECK:STDOUT: (-) stack-pop: 0 .0.
// CHECK:STDOUT: --- step exp (0) .1. (full_trace.carbon:[[@LINE-225]]) --->
// CHECK:STDOUT: (-) stack-pop: (0) .1. {{[[][[]}}0]]
// CHECK:STDOUT: --- step exp N.Foo(0) .2. (full_trace.carbon:[[@LINE-227]]) --->
// CHECK:STDOUT: calling function: fun<N.Foo>
// CHECK:STDOUT: match pattern (Placeholder<n>,)
// CHECK:STDOUT: from value expression with value (0,)
// CHECK:STDOUT: match pattern Placeholder<n>
// CHECK:STDOUT: from value expression with value 0
// CHECK:STDOUT: (+) memory-alloc: #2 `0`
// CHECK:STDOUT: (+) stack-push: .0. {n: i32: lval<Allocation(2)>}
// CHECK:STDOUT: (+) stack-push: {return (n + 1);} .0.
// CHECK:STDOUT: --- step stmt {return (n + 1);} .0. (full_trace.carbon:[[@LINE-239]]) --->
// CHECK:STDOUT: (+) stack-push: return (n + 1); .0.
// CHECK:STDOUT: --- step stmt return (n + 1); .0. (full_trace.carbon:[[@LINE-243]]) --->
// CHECK:STDOUT: (+) stack-push: (n + 1) .0.
// CHECK:STDOUT: (+) stack-push: (n + 1) .0.
// CHECK:STDOUT: --- step exp (n + 1) .0. (full_trace.carbon:[[@LINE-246]]) --->
// CHECK:STDOUT: (+) stack-push: n .0.
// CHECK:STDOUT: (+) stack-push: n .0.
// CHECK:STDOUT: --- step exp n .0. (full_trace.carbon:[[@LINE-249]]) --->
// CHECK:STDOUT: +++ memory-read: #2 `0`
// CHECK:STDOUT: (-) stack-pop: n .0.
// CHECK:STDOUT: (-) stack-pop: n .1. {{[[][[]}}0]]
// CHECK:STDOUT: --- step exp (n + 1) .1. (full_trace.carbon:[[@LINE-253]]) --->
// CHECK:STDOUT: (+) stack-push: 1 .0.
// CHECK:STDOUT: (+) stack-push: 1 .0.
// CHECK:STDOUT: --- step exp 1 .0. (full_trace.carbon:[[@LINE-256]]) --->
// CHECK:STDOUT: (-) stack-pop: 1 .0.
// CHECK:STDOUT: (-) stack-pop: 1 .1. {{[[][[]}}1]]
// CHECK:STDOUT: --- step exp (n + 1) .2. (full_trace.carbon:[[@LINE-259]]) --->
// CHECK:STDOUT: (-) stack-pop: (n + 1) .2. {{[[][[]}}0, 1]]
// CHECK:STDOUT: (-) stack-pop: (n + 1) .1. {{[[][[]}}1]]
// CHECK:STDOUT: --- step stmt return (n + 1); .1. (full_trace.carbon:[[@LINE-262]]) --->
// CHECK:STDOUT: +++ memory-write: #1 `1`
// CHECK:STDOUT: (-) stack-pop: return (n + 1); .1. {{[[][[]}}1]]
// CHECK:STDOUT: (-) stack-pop: {return (n + 1);} .1. {}
// CHECK:STDOUT: (-) stack-pop: .0. {n: i32: lval<Allocation(2)>}
// CHECK:STDOUT: (+) stack-push: clean up.0. {n: i32: lval<Allocation(2)>}
// CHECK:STDOUT: (+) stack-push: clean up.0. {}
// CHECK:STDOUT: (-) stack-pop: clean up.0. {}
// CHECK:STDOUT: +++ memory-read: #2 `0`
// CHECK:STDOUT: (+) stack-push: destroy.0.
// CHECK:STDOUT: (-) stack-pop: destroy.0.
// CHECK:STDOUT: (-) memory-dealloc: #2 `0`
// CHECK:STDOUT: (-) stack-pop: clean up.2. {n: i32: lval<Allocation(2)>}
// CHECK:STDOUT: --- step exp N.Foo(0) .3. (full_trace.carbon:[[@LINE-270]]) --->
// CHECK:STDOUT: (-) stack-pop: N.Foo(0) .3. {{[[][[]}}fun<N.Foo>, (0,), 1]] {}
// CHECK:STDOUT: (+) stack-push: clean up.0. {}
// CHECK:STDOUT: (-) stack-pop: clean up.0. {}
// CHECK:STDOUT: --- step stmt var x: i32 = N.Foo(0); .1. (full_trace.carbon:[[@LINE-274]]) --->
// CHECK:STDOUT: +++ memory-read: #1 `1`
// CHECK:STDOUT: match pattern Placeholder<x>
// CHECK:STDOUT: from initializing expression with value 1
// CHECK:STDOUT: (-) stack-pop: var x: i32 = N.Foo(0); .1. {{[[][[]}}1]]
// CHECK:STDOUT: --- step stmt {var x: i32 = N.Foo(0);return x;} .1. (full_trace.carbon:[[@LINE+33]]) --->
// CHECK:STDOUT: (+) stack-push: return x; .0.
// CHECK:STDOUT: --- step stmt return x; .0. (full_trace.carbon:[[@LINE-280]]) --->
// CHECK:STDOUT: (+) stack-push: x .0.
// CHECK:STDOUT: (+) stack-push: x .0.
// CHECK:STDOUT: --- step exp x .0. (full_trace.carbon:[[@LINE-283]]) --->
// CHECK:STDOUT: +++ memory-read: #1 `1`
// CHECK:STDOUT: (-) stack-pop: x .0.
// CHECK:STDOUT: (-) stack-pop: x .1. {{[[][[]}}ref_expr<Allocation(1)>]]
// CHECK:STDOUT: --- step stmt return x; .1. (full_trace.carbon:[[@LINE-287]]) --->
// CHECK:STDOUT: (-) stack-pop: return x; .1. {{[[][[]}}1]]
// CHECK:STDOUT: (-) stack-pop: {var x: i32 = N.Foo(0);return x;} .2. {x: i32: lval<Allocation(1)>}
// CHECK:STDOUT: (-) stack-pop: .0. {}
// CHECK:STDOUT: (+) stack-push: clean up.0. {}
// CHECK:STDOUT: (+) stack-push: clean up.0. {x: i32: lval<Allocation(1)>}
// CHECK:STDOUT: +++ memory-read: #1 `1`
// CHECK:STDOUT: (+) stack-push: destroy.0.
// CHECK:STDOUT: (-) stack-pop: destroy.0.
// CHECK:STDOUT: (-) memory-dealloc: #1 `1`
// CHECK:STDOUT: (-) stack-pop: clean up.2. {x: i32: lval<Allocation(1)>}
// CHECK:STDOUT: (-) stack-pop: clean up.0. {}
// CHECK:STDOUT: --- step exp Main() .3. (<Main()>:0) --->
// CHECK:STDOUT: (-) stack-pop: Main() .3. {{[[][[]}}fun<Main>, (), 1]] {}
// CHECK:STDOUT: (+) stack-push: clean up.0. {}
// CHECK:STDOUT: (-) stack-pop: clean up.0. {}
// CHECK:STDOUT: (-) stack-pop: Main() .1. {{[[][[]}}1]]
// CHECK:STDOUT: interpreter result: 1
// CHECK:STDOUT: ********** printing timing **********
// CHECK:STDOUT: Time elapsed in ExecProgram: {{[0-9]+}}ms
// CHECK:STDOUT: Time elapsed in AnalyzeProgram: {{[0-9]+}}ms
// CHECK:STDOUT: Time elapsed in AddPrelude: {{[0-9]+}}ms
// CHECK:STDOUT: Time elapsed in Parse: {{[0-9]+}}ms
// CHECK:STDOUT: result: 1
}
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