Only allow assignment to durable reference expressions. (#3077)

Now that we support expression categories, use them to determine whether
the left-hand side of an assignment expression is valid.
This commit is contained in:
Richard Smith
2023-08-09 19:46:34 +00:00
committed by GitHub
parent 0bcba9d05e
commit 5b45c2319f
4 changed files with 478 additions and 3 deletions
@@ -99,6 +99,7 @@ CARBON_DIAGNOSTIC_KIND(SemanticsTodo)
CARBON_DIAGNOSTIC_KIND(AddressOfEphemeralReference)
CARBON_DIAGNOSTIC_KIND(AddressOfNonReference)
CARBON_DIAGNOSTIC_KIND(AssignmentToNonAssignable)
CARBON_DIAGNOSTIC_KIND(DereferenceOfNonPointer)
CARBON_DIAGNOSTIC_KIND(DereferenceOfType)
CARBON_DIAGNOSTIC_KIND(NameNotFound)
@@ -9,7 +9,7 @@ namespace Carbon {
auto SemanticsHandleInfixOperator(SemanticsContext& context,
ParseTree::Node parse_node) -> bool {
auto rhs_id = context.node_stack().PopExpression();
auto lhs_id = context.node_stack().PopExpression();
auto [lhs_node, lhs_id] = context.node_stack().PopExpressionWithParseNode();
// Figure out the operator for the token.
auto token = context.parse_tree().node_token(parse_node);
@@ -53,7 +53,12 @@ auto SemanticsHandleInfixOperator(SemanticsContext& context,
}
case TokenKind::Equal: {
// TODO: handle complex assignment expression such as `a += 1`.
// TODO: check if lhs node is assignable.
if (GetSemanticsExpressionCategory(context.semantics_ir(), lhs_id) !=
SemanticsExpressionCategory::DurableReference) {
CARBON_DIAGNOSTIC(AssignmentToNonAssignable, Error,
"Expression is not assignable.");
context.emitter().Emit(lhs_node, AssignmentToNonAssignable);
}
context.ImplicitAsRequired(
parse_node, rhs_id, context.semantics_ir().GetNode(lhs_id).type_id());
context.AddNodeAndPush(
+182 -1
View File
@@ -7,26 +7,67 @@
fn Main() {
var a: i32 = 12;
a = 9;
var b: (i32, i32) = (1, 2);
b[0] = 3;
b[1] = 4;
var c: {.a: i32, .b: i32} = {.a = 1, .b = 2};
c.a = 3;
c.b = 4;
var p: i32* = &a;
*p = 5;
*(if true then p else &a) = 10;
}
// CHECK:STDOUT: cross_reference_irs_size: 1
// CHECK:STDOUT: functions: [
// CHECK:STDOUT: {name: str0, param_refs: block0, body: {block2}}},
// CHECK:STDOUT: {name: str0, param_refs: block0, body: {block2, block8, block9, block10}}},
// CHECK:STDOUT: ]
// CHECK:STDOUT: integer_literals: [
// CHECK:STDOUT: 12,
// CHECK:STDOUT: -7,
// CHECK:STDOUT: 1,
// CHECK:STDOUT: 2,
// CHECK:STDOUT: 0,
// CHECK:STDOUT: 3,
// CHECK:STDOUT: 1,
// CHECK:STDOUT: 4,
// CHECK:STDOUT: 1,
// CHECK:STDOUT: 2,
// CHECK:STDOUT: 3,
// CHECK:STDOUT: 4,
// CHECK:STDOUT: 5,
// CHECK:STDOUT: 10,
// CHECK:STDOUT: ]
// CHECK:STDOUT: real_literals: [
// CHECK:STDOUT: ]
// CHECK:STDOUT: strings: [
// CHECK:STDOUT: Main,
// CHECK:STDOUT: a,
// CHECK:STDOUT: b,
// CHECK:STDOUT: c,
// CHECK:STDOUT: p,
// CHECK:STDOUT: ]
// CHECK:STDOUT: types: [
// CHECK:STDOUT: nodeIntegerType,
// CHECK:STDOUT: node+9,
// CHECK:STDOUT: node+11,
// CHECK:STDOUT: node+30,
// CHECK:STDOUT: node+47,
// CHECK:STDOUT: nodeBoolType,
// CHECK:STDOUT: ]
// CHECK:STDOUT: type_blocks: [
// CHECK:STDOUT: [
// CHECK:STDOUT: typeTypeType,
// CHECK:STDOUT: typeTypeType,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: type0,
// CHECK:STDOUT: type0,
// CHECK:STDOUT: ],
// CHECK:STDOUT: ]
// CHECK:STDOUT: nodes: [
// CHECK:STDOUT: {kind: FunctionDeclaration, arg0: function0},
@@ -36,6 +77,64 @@ fn Main() {
// CHECK:STDOUT: {kind: Assign, arg0: node+1, arg1: node+3},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int1, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+1, arg1: node+5},
// CHECK:STDOUT: {kind: StubReference, arg0: nodeIntegerType, type: typeTypeType},
// CHECK:STDOUT: {kind: StubReference, arg0: nodeIntegerType, type: typeTypeType},
// CHECK:STDOUT: {kind: TupleType, arg0: typeBlock0, type: typeTypeType},
// CHECK:STDOUT: {kind: TupleValue, arg0: block3, type: type1},
// CHECK:STDOUT: {kind: TupleType, arg0: typeBlock1, type: typeTypeType},
// CHECK:STDOUT: {kind: VarStorage, type: type2},
// CHECK:STDOUT: {kind: BindName, arg0: str2, arg1: node+12, type: type2},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int2, type: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+14, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int3, type: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+16, type: type0},
// CHECK:STDOUT: {kind: TupleValue, arg0: block4, type: type2},
// CHECK:STDOUT: {kind: Assign, arg0: node+12, arg1: node+18},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int4, type: type0},
// CHECK:STDOUT: {kind: Index, arg0: node+12, arg1: node+20, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int5, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+21, arg1: node+22},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int6, type: type0},
// CHECK:STDOUT: {kind: Index, arg0: node+12, arg1: node+24, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int7, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+25, arg1: node+26},
// CHECK:STDOUT: {kind: StructTypeField, arg0: str1, arg1: type0},
// CHECK:STDOUT: {kind: StructTypeField, arg0: str2, arg1: type0},
// CHECK:STDOUT: {kind: StructType, arg0: block5, type: typeTypeType},
// CHECK:STDOUT: {kind: VarStorage, type: type3},
// CHECK:STDOUT: {kind: BindName, arg0: str3, arg1: node+31, type: type3},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int8, type: type0},
// CHECK:STDOUT: {kind: StructTypeField, arg0: str1, arg1: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+33, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int9, type: type0},
// CHECK:STDOUT: {kind: StructTypeField, arg0: str2, arg1: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+36, type: type0},
// CHECK:STDOUT: {kind: StructValue, arg0: block7, type: type3},
// CHECK:STDOUT: {kind: Assign, arg0: node+31, arg1: node+39},
// CHECK:STDOUT: {kind: StructMemberAccess, arg0: node+31, arg1: member0, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int10, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+41, arg1: node+42},
// CHECK:STDOUT: {kind: StructMemberAccess, arg0: node+31, arg1: member1, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int11, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+44, arg1: node+45},
// CHECK:STDOUT: {kind: PointerType, arg0: type0, type: typeTypeType},
// CHECK:STDOUT: {kind: VarStorage, type: type4},
// CHECK:STDOUT: {kind: BindName, arg0: str4, arg1: node+48, type: type4},
// CHECK:STDOUT: {kind: AddressOf, arg0: node+1, type: type4},
// CHECK:STDOUT: {kind: Assign, arg0: node+48, arg1: node+50},
// CHECK:STDOUT: {kind: Dereference, arg0: node+48, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int12, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+52, arg1: node+53},
// CHECK:STDOUT: {kind: BoolLiteral, arg0: true, type: type5},
// CHECK:STDOUT: {kind: BranchIf, arg0: block8, arg1: node+55},
// CHECK:STDOUT: {kind: Branch, arg0: block9},
// CHECK:STDOUT: {kind: AddressOf, arg0: node+1, type: type4},
// CHECK:STDOUT: {kind: BranchWithArg, arg0: block10, arg1: node+48},
// CHECK:STDOUT: {kind: BranchWithArg, arg0: block10, arg1: node+58},
// CHECK:STDOUT: {kind: BlockArg, arg0: block10, type: type4},
// CHECK:STDOUT: {kind: Dereference, arg0: node+61, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int13, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+62, arg1: node+63},
// CHECK:STDOUT: {kind: Return},
// CHECK:STDOUT: ]
// CHECK:STDOUT: node_blocks: [
@@ -52,5 +151,87 @@ fn Main() {
// CHECK:STDOUT: node+5,
// CHECK:STDOUT: node+6,
// CHECK:STDOUT: node+7,
// CHECK:STDOUT: node+8,
// CHECK:STDOUT: node+9,
// CHECK:STDOUT: node+10,
// CHECK:STDOUT: node+11,
// CHECK:STDOUT: node+12,
// CHECK:STDOUT: node+13,
// CHECK:STDOUT: node+14,
// CHECK:STDOUT: node+15,
// CHECK:STDOUT: node+16,
// CHECK:STDOUT: node+17,
// CHECK:STDOUT: node+18,
// CHECK:STDOUT: node+19,
// CHECK:STDOUT: node+20,
// CHECK:STDOUT: node+21,
// CHECK:STDOUT: node+22,
// CHECK:STDOUT: node+23,
// CHECK:STDOUT: node+24,
// CHECK:STDOUT: node+25,
// CHECK:STDOUT: node+26,
// CHECK:STDOUT: node+27,
// CHECK:STDOUT: node+28,
// CHECK:STDOUT: node+29,
// CHECK:STDOUT: node+30,
// CHECK:STDOUT: node+31,
// CHECK:STDOUT: node+32,
// CHECK:STDOUT: node+33,
// CHECK:STDOUT: node+35,
// CHECK:STDOUT: node+36,
// CHECK:STDOUT: node+38,
// CHECK:STDOUT: node+39,
// CHECK:STDOUT: node+40,
// CHECK:STDOUT: node+41,
// CHECK:STDOUT: node+42,
// CHECK:STDOUT: node+43,
// CHECK:STDOUT: node+44,
// CHECK:STDOUT: node+45,
// CHECK:STDOUT: node+46,
// CHECK:STDOUT: node+47,
// CHECK:STDOUT: node+48,
// CHECK:STDOUT: node+49,
// CHECK:STDOUT: node+50,
// CHECK:STDOUT: node+51,
// CHECK:STDOUT: node+52,
// CHECK:STDOUT: node+53,
// CHECK:STDOUT: node+54,
// CHECK:STDOUT: node+55,
// CHECK:STDOUT: node+56,
// CHECK:STDOUT: node+57,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+7,
// CHECK:STDOUT: node+8,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+15,
// CHECK:STDOUT: node+17,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+28,
// CHECK:STDOUT: node+29,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+34,
// CHECK:STDOUT: node+37,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+35,
// CHECK:STDOUT: node+38,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+59,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+58,
// CHECK:STDOUT: node+60,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+61,
// CHECK:STDOUT: node+62,
// CHECK:STDOUT: node+63,
// CHECK:STDOUT: node+64,
// CHECK:STDOUT: node+65,
// CHECK:STDOUT: ],
// CHECK:STDOUT: ]
@@ -0,0 +1,288 @@
// 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
fn F() -> i32;
fn Main() {
// CHECK:STDERR: fail_assigment_to_non_assignable.carbon:[[@LINE+3]]:3: Expression is not assignable.
// CHECK:STDERR: 1 = 2;
// CHECK:STDERR: ^
1 = 2;
// CHECK:STDERR: fail_assigment_to_non_assignable.carbon:[[@LINE+3]]:5: Expression is not assignable.
// CHECK:STDERR: F() = 1;
// CHECK:STDERR: ^
F() = 1;
// CHECK:STDERR: fail_assigment_to_non_assignable.carbon:[[@LINE+3]]:8: Expression is not assignable.
// CHECK:STDERR: (1, 2) = (3, 4);
// CHECK:STDERR: ^
(1, 2) = (3, 4);
var n: i32 = 0;
// CHECK:STDERR: fail_assigment_to_non_assignable.carbon:[[@LINE+3]]:8: Expression is not assignable.
// CHECK:STDERR: (n, n) = (1, 2);
// CHECK:STDERR: ^
(n, n) = (1, 2);
// CHECK:STDERR: fail_assigment_to_non_assignable.carbon:[[@LINE+3]]:3: Expression is not assignable.
// CHECK:STDERR: i32 = i32*;
// CHECK:STDERR: ^
i32 = i32*;
// CHECK:STDERR: fail_assigment_to_non_assignable.carbon:[[@LINE+3]]:18: Expression is not assignable.
// CHECK:STDERR: {.x = 1, .y = 2} = {.x = 3, .y = 4};
// CHECK:STDERR: ^
{.x = 1, .y = 2} = {.x = 3, .y = 4};
// CHECK:STDERR: fail_assigment_to_non_assignable.carbon:[[@LINE+3]]:25: Expression is not assignable.
// CHECK:STDERR: (if true then 1 else 2) = 3;
// CHECK:STDERR: ^
(if true then 1 else 2) = 3;
// Under #911, if expressions are never reference expressions.
var a: i32;
// CHECK:STDERR: fail_assigment_to_non_assignable.carbon:[[@LINE+3]]:25: Expression is not assignable.
// CHECK:STDERR: (if true then a else a) = 10;
// CHECK:STDERR: ^
(if true then a else a) = 10;
}
// CHECK:STDOUT: cross_reference_irs_size: 1
// CHECK:STDOUT: functions: [
// CHECK:STDOUT: {name: str0, param_refs: block0, return_type: type0},
// CHECK:STDOUT: {name: str1, param_refs: block0, body: {block2, block11, block12, block13, block14, block15, block16}}},
// CHECK:STDOUT: ]
// CHECK:STDOUT: integer_literals: [
// CHECK:STDOUT: 1,
// CHECK:STDOUT: 2,
// CHECK:STDOUT: 1,
// CHECK:STDOUT: 1,
// CHECK:STDOUT: 2,
// CHECK:STDOUT: 3,
// CHECK:STDOUT: 4,
// CHECK:STDOUT: 0,
// CHECK:STDOUT: 1,
// CHECK:STDOUT: 2,
// CHECK:STDOUT: 1,
// CHECK:STDOUT: 2,
// CHECK:STDOUT: 3,
// CHECK:STDOUT: 4,
// CHECK:STDOUT: 1,
// CHECK:STDOUT: 2,
// CHECK:STDOUT: 3,
// CHECK:STDOUT: 10,
// CHECK:STDOUT: ]
// CHECK:STDOUT: real_literals: [
// CHECK:STDOUT: ]
// CHECK:STDOUT: strings: [
// CHECK:STDOUT: F,
// CHECK:STDOUT: Main,
// CHECK:STDOUT: n,
// CHECK:STDOUT: x,
// CHECK:STDOUT: y,
// CHECK:STDOUT: a,
// CHECK:STDOUT: ]
// CHECK:STDOUT: types: [
// CHECK:STDOUT: nodeIntegerType,
// CHECK:STDOUT: node+12,
// CHECK:STDOUT: node+41,
// CHECK:STDOUT: nodeBoolType,
// CHECK:STDOUT: ]
// CHECK:STDOUT: type_blocks: [
// CHECK:STDOUT: [
// CHECK:STDOUT: type0,
// CHECK:STDOUT: type0,
// CHECK:STDOUT: ],
// CHECK:STDOUT: ]
// CHECK:STDOUT: nodes: [
// CHECK:STDOUT: {kind: FunctionDeclaration, arg0: function0},
// CHECK:STDOUT: {kind: FunctionDeclaration, arg0: function1},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int0, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int1, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+2, arg1: node+3},
// CHECK:STDOUT: {kind: Call, arg0: block0, arg1: function0, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int2, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+5, arg1: node+6},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int3, type: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+8, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int4, type: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+10, type: type0},
// CHECK:STDOUT: {kind: TupleType, arg0: typeBlock0, type: typeTypeType},
// CHECK:STDOUT: {kind: TupleValue, arg0: block3, type: type1},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int5, type: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+14, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int6, type: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+16, type: type0},
// CHECK:STDOUT: {kind: TupleValue, arg0: block4, type: type1},
// CHECK:STDOUT: {kind: Assign, arg0: node+13, arg1: node+18},
// CHECK:STDOUT: {kind: VarStorage, type: type0},
// CHECK:STDOUT: {kind: BindName, arg0: str2, arg1: node+20, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int7, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+20, arg1: node+22},
// CHECK:STDOUT: {kind: StubReference, arg0: node+20, type: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+20, type: type0},
// CHECK:STDOUT: {kind: TupleValue, arg0: block5, type: type1},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int8, type: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+27, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int9, type: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+29, type: type0},
// CHECK:STDOUT: {kind: TupleValue, arg0: block6, type: type1},
// CHECK:STDOUT: {kind: Assign, arg0: node+26, arg1: node+31},
// CHECK:STDOUT: {kind: PointerType, arg0: type0, type: typeTypeType},
// CHECK:STDOUT: {kind: Assign, arg0: nodeIntegerType, arg1: node+33},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int10, type: type0},
// CHECK:STDOUT: {kind: StructTypeField, arg0: str3, arg1: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+35, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int11, type: type0},
// CHECK:STDOUT: {kind: StructTypeField, arg0: str4, arg1: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+38, type: type0},
// CHECK:STDOUT: {kind: StructType, arg0: block7, type: typeTypeType},
// CHECK:STDOUT: {kind: StructValue, arg0: block8, type: type2},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int12, type: type0},
// CHECK:STDOUT: {kind: StructTypeField, arg0: str3, arg1: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+43, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int13, type: type0},
// CHECK:STDOUT: {kind: StructTypeField, arg0: str4, arg1: type0},
// CHECK:STDOUT: {kind: StubReference, arg0: node+46, type: type0},
// CHECK:STDOUT: {kind: StructValue, arg0: block10, type: type2},
// CHECK:STDOUT: {kind: Assign, arg0: node+42, arg1: node+49},
// CHECK:STDOUT: {kind: BoolLiteral, arg0: true, type: type3},
// CHECK:STDOUT: {kind: BranchIf, arg0: block11, arg1: node+51},
// CHECK:STDOUT: {kind: Branch, arg0: block12},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int14, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int15, type: type0},
// CHECK:STDOUT: {kind: BranchWithArg, arg0: block13, arg1: node+54},
// CHECK:STDOUT: {kind: BranchWithArg, arg0: block13, arg1: node+55},
// CHECK:STDOUT: {kind: BlockArg, arg0: block13, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int16, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+58, arg1: node+59},
// CHECK:STDOUT: {kind: VarStorage, type: type0},
// CHECK:STDOUT: {kind: BindName, arg0: str5, arg1: node+61, type: type0},
// CHECK:STDOUT: {kind: BoolLiteral, arg0: true, type: type3},
// CHECK:STDOUT: {kind: BranchIf, arg0: block14, arg1: node+63},
// CHECK:STDOUT: {kind: Branch, arg0: block15},
// CHECK:STDOUT: {kind: BranchWithArg, arg0: block16, arg1: node+61},
// CHECK:STDOUT: {kind: BranchWithArg, arg0: block16, arg1: node+61},
// CHECK:STDOUT: {kind: BlockArg, arg0: block16, type: type0},
// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int17, type: type0},
// CHECK:STDOUT: {kind: Assign, arg0: node+68, arg1: node+69},
// CHECK:STDOUT: {kind: Return},
// CHECK:STDOUT: ]
// CHECK:STDOUT: node_blocks: [
// CHECK:STDOUT: [
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+0,
// CHECK:STDOUT: node+1,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+2,
// CHECK:STDOUT: node+3,
// CHECK:STDOUT: node+4,
// CHECK:STDOUT: node+5,
// CHECK:STDOUT: node+6,
// CHECK:STDOUT: node+7,
// CHECK:STDOUT: node+8,
// CHECK:STDOUT: node+9,
// CHECK:STDOUT: node+10,
// CHECK:STDOUT: node+11,
// CHECK:STDOUT: node+12,
// CHECK:STDOUT: node+13,
// CHECK:STDOUT: node+14,
// CHECK:STDOUT: node+15,
// CHECK:STDOUT: node+16,
// CHECK:STDOUT: node+17,
// CHECK:STDOUT: node+18,
// CHECK:STDOUT: node+19,
// CHECK:STDOUT: node+20,
// CHECK:STDOUT: node+21,
// CHECK:STDOUT: node+22,
// CHECK:STDOUT: node+23,
// CHECK:STDOUT: node+24,
// CHECK:STDOUT: node+25,
// CHECK:STDOUT: node+26,
// CHECK:STDOUT: node+27,
// CHECK:STDOUT: node+28,
// CHECK:STDOUT: node+29,
// CHECK:STDOUT: node+30,
// CHECK:STDOUT: node+31,
// CHECK:STDOUT: node+32,
// CHECK:STDOUT: node+33,
// CHECK:STDOUT: node+34,
// CHECK:STDOUT: node+35,
// CHECK:STDOUT: node+37,
// CHECK:STDOUT: node+38,
// CHECK:STDOUT: node+40,
// CHECK:STDOUT: node+41,
// CHECK:STDOUT: node+42,
// CHECK:STDOUT: node+43,
// CHECK:STDOUT: node+45,
// CHECK:STDOUT: node+46,
// CHECK:STDOUT: node+48,
// CHECK:STDOUT: node+49,
// CHECK:STDOUT: node+50,
// CHECK:STDOUT: node+51,
// CHECK:STDOUT: node+52,
// CHECK:STDOUT: node+53,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+9,
// CHECK:STDOUT: node+11,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+15,
// CHECK:STDOUT: node+17,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+24,
// CHECK:STDOUT: node+25,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+28,
// CHECK:STDOUT: node+30,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+36,
// CHECK:STDOUT: node+39,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+37,
// CHECK:STDOUT: node+40,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+44,
// CHECK:STDOUT: node+47,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+45,
// CHECK:STDOUT: node+48,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+54,
// CHECK:STDOUT: node+56,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+55,
// CHECK:STDOUT: node+57,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+58,
// CHECK:STDOUT: node+59,
// CHECK:STDOUT: node+60,
// CHECK:STDOUT: node+61,
// CHECK:STDOUT: node+62,
// CHECK:STDOUT: node+63,
// CHECK:STDOUT: node+64,
// CHECK:STDOUT: node+65,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+66,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+67,
// CHECK:STDOUT: ],
// CHECK:STDOUT: [
// CHECK:STDOUT: node+68,
// CHECK:STDOUT: node+69,
// CHECK:STDOUT: node+70,
// CHECK:STDOUT: node+71,
// CHECK:STDOUT: ],
// CHECK:STDOUT: ]