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https://github.com/carbon-language/carbon-lang.git
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Semantics & Lowering for simple assignment. (#3058)
Co-authored-by: Farzana Ahmed Siddique <fasiddique@google.com>
This commit is contained in:
Farzana Ahmed Siddique
co-authored by
Farzana Ahmed Siddique
Farzana Ahmed Siddique
parent
3a093980a6
commit
ce459d4da7
@@ -0,0 +1,37 @@
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// 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: ; ModuleID = 'assignment.carbon'
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// CHECK:STDOUT: source_filename = "assignment.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: %TupleLiteralType = type { {}, {} }
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// CHECK:STDOUT: %TupleLiteralType.0 = type { i32, i32 }
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// CHECK:STDOUT:
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// CHECK:STDOUT: define void @Main() {
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// CHECK:STDOUT: %var = alloca i32, align 4
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// CHECK:STDOUT: store i32 12, ptr %var, align 4
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// CHECK:STDOUT: store i32 -7, ptr %var, align 4
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// CHECK:STDOUT: %TupleLiteralValue = alloca %TupleLiteralType, align 8
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// CHECK:STDOUT: %1 = getelementptr inbounds %TupleLiteralType, ptr %TupleLiteralValue, i32 0, i32 0
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// CHECK:STDOUT: store {} zeroinitializer, ptr %1, align 1
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// CHECK:STDOUT: %2 = getelementptr inbounds %TupleLiteralType, ptr %TupleLiteralValue, i32 0, i32 1
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// CHECK:STDOUT: store {} zeroinitializer, ptr %2, align 1
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// CHECK:STDOUT: %var1 = alloca %TupleLiteralType.0, align 8
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// CHECK:STDOUT: %TupleLiteralValue2 = alloca %TupleLiteralType.0, align 8
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// CHECK:STDOUT: %3 = getelementptr inbounds %TupleLiteralType.0, ptr %TupleLiteralValue2, i32 0, i32 0
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// CHECK:STDOUT: store i32 1, ptr %3, align 4
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// CHECK:STDOUT: %4 = getelementptr inbounds %TupleLiteralType.0, ptr %TupleLiteralValue2, i32 0, i32 1
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// CHECK:STDOUT: store i32 2, ptr %4, align 4
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// CHECK:STDOUT: %5 = load %TupleLiteralType.0, ptr %TupleLiteralValue2, align 4
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// CHECK:STDOUT: store %TupleLiteralType.0 %5, ptr %var1, align 4
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// CHECK:STDOUT: ret void
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// CHECK:STDOUT: }
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fn Main() {
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var a: i32 = 12;
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a = 9;
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var b: (i32, i32);
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b = (1, 2);
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}
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@@ -51,7 +51,15 @@ auto SemanticsHandleInfixOperator(SemanticsContext& context,
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resume_block_id));
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return true;
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}
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case TokenKind::Equal: {
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// TODO: handle complex assignment expression such as `a += 1`.
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// TODO: check if lhs node is assignable.
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context.ImplicitAsRequired(
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parse_node, rhs_id, context.semantics_ir().GetNode(lhs_id).type_id());
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context.AddNodeAndPush(
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parse_node, SemanticsNode::Assign::Make(parse_node, lhs_id, rhs_id));
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return true;
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}
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default:
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return context.TODO(parse_node, llvm::formatv("Handle {0}", token_kind));
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}
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@@ -0,0 +1,55 @@
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// 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, body: {block2}}},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: integer_literals: [
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// CHECK:STDOUT: 12,
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// CHECK:STDOUT: -7,
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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: Main,
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// CHECK:STDOUT: a,
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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: ]
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// CHECK:STDOUT: type_blocks: [
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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: VarStorage, type: type0},
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// CHECK:STDOUT: {kind: BindName, arg0: str1, arg1: node+1, type: type0},
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// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int0, type: type0},
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// CHECK:STDOUT: {kind: Assign, arg0: node+1, arg1: node+3},
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// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int1, type: type0},
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// CHECK:STDOUT: {kind: Assign, arg0: node+1, arg1: node+5},
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// CHECK:STDOUT: {kind: Return},
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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: ],
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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: node+3,
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// CHECK:STDOUT: node+4,
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// CHECK:STDOUT: node+5,
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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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fn Main() {
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var a: i32 = 12;
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a = 9;
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}
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@@ -0,0 +1,59 @@
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// 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, body: {block2}}},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: integer_literals: [
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// CHECK:STDOUT: 3,
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: real_literals: [
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// CHECK:STDOUT: {mantissa: 56, exponent: -1, is_decimal: 1},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: strings: [
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// CHECK:STDOUT: Main,
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// CHECK:STDOUT: a,
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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: nodeFloatingPointType,
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: type_blocks: [
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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: VarStorage, type: type0},
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// CHECK:STDOUT: {kind: BindName, arg0: str1, arg1: node+1, type: type0},
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// CHECK:STDOUT: {kind: IntegerLiteral, arg0: int0, type: type0},
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// CHECK:STDOUT: {kind: Assign, arg0: node+1, arg1: node+3},
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// CHECK:STDOUT: {kind: RealLiteral, arg0: real0, type: type1},
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// CHECK:STDOUT: {kind: Assign, arg0: node+1, arg1: node+5},
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// CHECK:STDOUT: {kind: Return},
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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: ],
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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: node+3,
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// CHECK:STDOUT: node+4,
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// CHECK:STDOUT: node+5,
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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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fn Main() {
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var a: i32 = 3;
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// CHECK:STDERR: fail_type_mismatch_assignment.carbon:[[@LINE+3]]:5: Cannot implicitly convert from `f64` to `i32`.
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// CHECK:STDERR: a = 5.6;
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// CHECK:STDERR: ^
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a = 5.6;
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}
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