mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 17:25:48 +01:00
Richard Smith
4b69264cb1
Add validation that every code block in a function is terminated by a sequence of terminating instructions, and that terminators don't appear anywhere else in code blocks. This required tracking whether we're in a reachable code block. That's done on the fly when we create a new code block; the new `SemanticsNodeBlockId::Unreachable` is used to represent the case where we're not actually creating a code block because we're in unreachable code.
94 lines
3.2 KiB
Plaintext
94 lines
3.2 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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// CHECK:STDOUT: cross_reference_irs_size: 1
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// CHECK:STDOUT: functions: [
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// CHECK:STDOUT: {name: str0, param_refs: block0, return_type: type0, body: {block2}}},
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// CHECK:STDOUT: {name: str1, param_refs: block0, return_type: type0, body: {block3}}},
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// CHECK:STDOUT: {name: str2, param_refs: block5, return_type: type0, body: {block6, block7, block8, block9}}},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: integer_literals: [
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// CHECK:STDOUT: 1,
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// CHECK:STDOUT: 2,
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: real_literals: [
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: strings: [
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// CHECK:STDOUT: A,
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// CHECK:STDOUT: B,
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// CHECK:STDOUT: F,
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// CHECK:STDOUT: b,
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: types: [
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// CHECK:STDOUT: nodeIntegerType,
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// CHECK:STDOUT: nodeBoolType,
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: nodes: [
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// CHECK:STDOUT: {kind: FunctionDeclaration, arg0: function0},
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// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int0, type: type0},
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// CHECK:STDOUT: {kind: ReturnExpression, arg0: node+1, type: type0},
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// CHECK:STDOUT: {kind: FunctionDeclaration, arg0: function1},
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// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int1, type: type0},
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// CHECK:STDOUT: {kind: ReturnExpression, arg0: node+4, type: type0},
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// CHECK:STDOUT: {kind: VarStorage, type: type1},
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// CHECK:STDOUT: {kind: BindName, arg0: str3, arg1: node+6, type: type1},
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// CHECK:STDOUT: {kind: FunctionDeclaration, arg0: function2},
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// CHECK:STDOUT: {kind: BranchIf, arg0: block7, arg1: node+6},
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// CHECK:STDOUT: {kind: Branch, arg0: block8},
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// CHECK:STDOUT: {kind: Call, arg0: block0, arg1: function0, type: type0},
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// CHECK:STDOUT: {kind: Call, arg0: block0, arg1: function1, type: type0},
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// CHECK:STDOUT: {kind: BranchWithArg, arg0: block9, arg1: node+11},
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// CHECK:STDOUT: {kind: BranchWithArg, arg0: block9, arg1: node+12},
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// CHECK:STDOUT: {kind: BlockArg, arg0: block9, type: type0},
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// CHECK:STDOUT: {kind: ReturnExpression, arg0: node+15, type: type0},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: node_blocks: [
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// CHECK:STDOUT: [
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: [
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// CHECK:STDOUT: node+0,
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// CHECK:STDOUT: node+3,
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// CHECK:STDOUT: node+8,
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: [
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// CHECK:STDOUT: node+1,
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// CHECK:STDOUT: node+2,
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: [
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// CHECK:STDOUT: node+4,
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// CHECK:STDOUT: node+5,
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: [
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// CHECK:STDOUT: node+6,
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// CHECK:STDOUT: node+7,
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: [
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// CHECK:STDOUT: node+7,
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: [
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// CHECK:STDOUT: node+9,
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// CHECK:STDOUT: node+10,
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: [
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// CHECK:STDOUT: node+11,
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// CHECK:STDOUT: node+13,
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: [
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// CHECK:STDOUT: node+12,
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// CHECK:STDOUT: node+14,
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: [
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// CHECK:STDOUT: node+15,
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// CHECK:STDOUT: node+16,
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// CHECK:STDOUT: ],
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// CHECK:STDOUT: ]
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fn A() -> i32 { return 1; }
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fn B() -> i32 { return 2; }
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fn F(b: bool) -> i32 {
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return if b then A() else B();
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}
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