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Sema: simplify zirRoundCast logic

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Adrià Arrufat
2026-03-20 17:02:48 +09:00
parent 77be7d36aa
commit 168be7a8d2
1 changed files with 13 additions and 22 deletions
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src/Sema.zig
+13 -22
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@@ -20927,7 +20927,7 @@ fn zirRoundCast(
if (sema.resolveValue(operand)) |operand_val| {
const result_val = try sema.intFromFloat(block, operand_src, operand_val, operand_ty, dest_ty, mode);
return Air.internedToRef(result_val.toIntern());
return .fromValue(result_val);
} else if (dest_scalar_ty.zigTypeTag(zcu) == .comptime_int) {
return sema.failWithNeededComptime(block, operand_src, .{ .simple = .casted_to_comptime_int });
}
@@ -20948,32 +20948,23 @@ fn zirRoundCast(
}
const safe = block.wantSafety();
const optimized = block.float_mode == .optimized;
if (safe) {
try sema.preparePanicId(src, .integer_part_out_of_bounds);
}
if (mode == .truncate) {
const air_tag: Air.Inst.Tag = if (safe)
if (optimized) .int_from_float_optimized_safe else .int_from_float_safe
else if (optimized) .int_from_float_optimized else .int_from_float;
return block.addTyOp(air_tag, dest_ty, operand);
} else {
const op_tag: Air.Inst.Tag = switch (mode) {
.round => .round,
.floor => .floor,
.ceil => .ceil,
.truncate, .exact => unreachable,
};
const rounded_op = try block.addUnOp(op_tag, operand);
const air_tag: Air.Inst.Tag = if (safe)
if (optimized) .int_from_float_optimized_safe else .int_from_float_safe
else if (optimized) .int_from_float_optimized else .int_from_float;
return block.addTyOp(air_tag, dest_ty, rounded_op);
}
const uncasted_result: Air.Inst.Ref = switch (mode) {
.truncate => operand,
.round => try block.addUnOp(.round, operand),
.floor => try block.addUnOp(.floor, operand),
.ceil => try block.addUnOp(.ceil, operand),
.exact => unreachable,
};
const air_cast_tag: Air.Inst.Tag = switch (block.float_mode) {
.optimized => if (safe) .int_from_float_optimized_safe else .int_from_float_safe,
.strict => if (safe) .int_from_float_safe else .int_from_float,
};
return block.addTyOp(air_cast_tag, dest_ty, uncasted_result);
}
fn zirFloatFromInt(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air.Inst.Ref {