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stage2 AArch64: Move to new regalloc freeze API

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joachimschmidt557 2022-01-29 13:01:47 +01:00 committed by Andrew Kelley
parent fb7060d3c2
commit b2338de7fd
1 changed files with 15 additions and 5 deletions
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20
src/arch/aarch64/CodeGen.zig
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@ -637,6 +637,9 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
.wrap_errunion_err => try self.airWrapErrUnionErr(inst),
// zig fmt: on
}
assert(!self.register_manager.frozenRegsExist());
if (std.debug.runtime_safety) {
if (self.air_bookkeeping < old_air_bookkeeping + 1) {
std.debug.panic("in codegen.zig, handling of AIR instruction %{d} ('{}') did not do proper bookkeeping. Look for a missing call to finishAir.", .{ inst, air_tags[inst] });
@ -1264,14 +1267,16 @@ fn load(self: *Self, dst_mcv: MCValue, ptr: MCValue, ptr_ty: Type) InnerError!vo
.register => {
return self.fail("TODO implement loading from MCValue.register for {}", .{self.target.cpu.arch});
},
.memory => |addr| {
.memory,
.stack_offset,
=> {
const reg = try self.register_manager.allocReg(null, &.{});
try self.genSetReg(ptr_ty, reg, .{ .memory = addr });
self.register_manager.freezeRegs(&.{reg});
defer self.register_manager.unfreezeRegs(&.{reg});
try self.genSetReg(ptr_ty, reg, ptr);
try self.load(dst_mcv, .{ .register = reg }, ptr_ty);
},
.stack_offset => {
return self.fail("TODO implement loading from MCValue.stack_offset", .{});
},
}
}
@ -1711,6 +1716,11 @@ fn airCmp(self: *Self, inst: Air.Inst.Index, op: math.CompareOperator) !void {
else => true,
};
if (lhs_is_register) self.register_manager.freezeRegs(&.{lhs.register});
defer if (lhs_is_register) self.register_manager.unfreezeRegs(&.{lhs.register});
if (rhs_is_register) self.register_manager.freezeRegs(&.{rhs.register});
defer if (rhs_is_register) self.register_manager.unfreezeRegs(&.{rhs.register});
var lhs_mcv = lhs;
var rhs_mcv = rhs;