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stage2: astgen prefix ops

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Vexu 2020-08-22 15:48:41 +03:00 committed by Andrew Kelley
parent fd9f509d6d
commit d62c12e077
3 changed files with 29 additions and 4 deletions
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30
src-self-hosted/astgen.zig
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@ -232,6 +232,11 @@ pub fn expr(mod: *Module, scope: *Scope, rl: ResultLoc, node: *ast.Node) InnerEr
.BoolAnd => return boolBinOp(mod, scope, rl, node.castTag(.BoolAnd).?),
.BoolOr => return boolBinOp(mod, scope, rl, node.castTag(.BoolOr).?),
.BoolNot => return rlWrap(mod, scope, rl, try boolNot(mod, scope, node.castTag(.BoolNot).?)),
.BitNot => return rlWrap(mod, scope, rl, try bitNot(mod, scope, node.castTag(.BitNot).?)),
.Negation => return rlWrap(mod, scope, rl, try negation(mod, scope, node.castTag(.Negation).?, .sub)),
.NegationWrap => return rlWrap(mod, scope, rl, try negation(mod, scope, node.castTag(.NegationWrap).?, .subwrap)),
.Identifier => return try identifier(mod, scope, rl, node.castTag(.Identifier).?),
.Asm => return rlWrap(mod, scope, rl, try assembly(mod, scope, node.castTag(.Asm).?)),
.StringLiteral => return rlWrap(mod, scope, rl, try stringLiteral(mod, scope, node.castTag(.StringLiteral).?)),
@ -244,7 +249,6 @@ pub fn expr(mod: *Module, scope: *Scope, rl: ResultLoc, node: *ast.Node) InnerEr
.While => return whileExpr(mod, scope, rl, node.castTag(.While).?),
.Period => return rlWrap(mod, scope, rl, try field(mod, scope, node.castTag(.Period).?)),
.Deref => return rlWrap(mod, scope, rl, try deref(mod, scope, node.castTag(.Deref).?)),
.BoolNot => return rlWrap(mod, scope, rl, try boolNot(mod, scope, node.castTag(.BoolNot).?)),
.AddressOf => return rlWrap(mod, scope, rl, try addressOf(mod, scope, node.castTag(.AddressOf).?)),
.FloatLiteral => return rlWrap(mod, scope, rl, try floatLiteral(mod, scope, node.castTag(.FloatLiteral).?)),
.UndefinedLiteral => return rlWrap(mod, scope, rl, try undefLiteral(mod, scope, node.castTag(.UndefinedLiteral).?)),
@ -271,9 +275,6 @@ pub fn expr(mod: *Module, scope: *Scope, rl: ResultLoc, node: *ast.Node) InnerEr
.Range => return mod.failNode(scope, node, "TODO implement astgen.expr for .Range", .{}),
.OrElse => return mod.failNode(scope, node, "TODO implement astgen.expr for .OrElse", .{}),
.Await => return mod.failNode(scope, node, "TODO implement astgen.expr for .Await", .{}),
.BitNot => return mod.failNode(scope, node, "TODO implement astgen.expr for .BitNot", .{}),
.Negation => return mod.failNode(scope, node, "TODO implement astgen.expr for .Negation", .{}),
.NegationWrap => return mod.failNode(scope, node, "TODO implement astgen.expr for .NegationWrap", .{}),
.Resume => return mod.failNode(scope, node, "TODO implement astgen.expr for .Resume", .{}),
.Try => return mod.failNode(scope, node, "TODO implement astgen.expr for .Try", .{}),
.Slice => return mod.failNode(scope, node, "TODO implement astgen.expr for .Slice", .{}),
@ -554,6 +555,27 @@ fn boolNot(mod: *Module, scope: *Scope, node: *ast.Node.SimplePrefixOp) InnerErr
return addZIRUnOp(mod, scope, src, .boolnot, operand);
}
fn bitNot(mod: *Module, scope: *Scope, node: *ast.Node.SimplePrefixOp) InnerError!*zir.Inst {
const tree = scope.tree();
const src = tree.token_locs[node.op_token].start;
const operand = try expr(mod, scope, .none, node.rhs);
return addZIRUnOp(mod, scope, src, .bitnot, operand);
}
fn negation(mod: *Module, scope: *Scope, node: *ast.Node.SimplePrefixOp, op_inst_tag: zir.Inst.Tag) InnerError!*zir.Inst {
const tree = scope.tree();
const src = tree.token_locs[node.op_token].start;
const lhs = addZIRInstConst(mod, scope, src, .{
.ty = Type.initTag(.comptime_int),
.val = Value.initTag(.zero),
});
const rhs = try expr(mod, scope, .none, node.rhs);
const result = try addZIRBinOp(mod, scope, src, op_inst_tag, lhs, rhs);
return rlWrap(mod, scope, rl, result);
}
fn addressOf(mod: *Module, scope: *Scope, node: *ast.Node.SimplePrefixOp) InnerError!*zir.Inst {
return expr(mod, scope, .ref, node.rhs);
}

2
src-self-hosted/zir.zig
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@ -70,6 +70,8 @@ pub const Inst = struct {
/// A typed result location pointer is bitcasted to a new result location pointer.
/// The new result location pointer has an inferred type.
bitcast_result_ptr,
/// Bitwise NOT. `~`
bitnot,
/// Bitwise OR. `|`
bitor,
/// A labeled block of code, which can return a value.

1
src-self-hosted/zir_sema.zig
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@ -97,6 +97,7 @@ pub fn analyzeInst(mod: *Module, scope: *Scope, old_inst: *zir.Inst) InnerError!
.array_cat => return analyzeInstArrayCat(mod, scope, old_inst.castTag(.array_cat).?),
.array_mul => return analyzeInstArrayMul(mod, scope, old_inst.castTag(.array_mul).?),
.bitand => return analyzeInstBitwise(mod, scope, old_inst.castTag(.bitand).?),
.bitnot => return analyzeInstBitwise(mod, scope, old_inst.castTag(.bitnot).?),
.bitor => return analyzeInstBitwise(mod, scope, old_inst.castTag(.bitor).?),
.xor => return analyzeInstBitwise(mod, scope, old_inst.castTag(.xor).?),
.shl => return analyzeInstShl(mod, scope, old_inst.castTag(.shl).?),