╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ register_manager.zig ─────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
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.. Air/ Compilation/ Sema/ Zcu/ codegen/ libs/ link/ Air.zig Builtin.zig Compilation.zig IncrementalDebugServer.zig InternPool.zig Module.zig RangeSet.zig Sema.zig Type.zig Value.zig Zcu.zig clang_options.zon codegen.zig crash_report.zig dev.zig fmt.zig link.zig main.zig mutable_value.zig print_env.zig print_targets.zig print_value.zig print_zir.zig print_zoir.zig ╭─────────────────────────────────╮ │register_manager.zig │ ╰─────────────────────────────────╯ target.zig tracy.zig zig_clang_cc1_main.cpp zig_clang_cc1as_main.cpp zig_clang_driver.cpp zig_llvm-ar.cpp zig_llvm.cpp zig_llvm.h
684 685 // Here, we don't defer unlock because we manually unlock 686 // after genAdd 687 const regs = try function.register_manager.allocRegs(2, .{ null, null }, gp); 688 689 try function.genAdd(result_reg, regs[0], regs[1]); 690 function.register_manager.unlockReg(lock.?); 691 692 const extra_summand_reg = try function.register_manager.allocReg(null, gp); 693 try function.genAdd(result_reg, result_reg, extra_summand_reg); 694 } 695 } 696 697 test "getReg" { 698 const allocator = std.testing.allocator; 699 700 var function = MockFunction1{ 701 .allocator = allocator, 702 }; 703 defer function.deinit(); 704 705 const mock_instruction: Air.Inst.Index = 1; 706 707 try function.register_manager.getReg(.r3, mock_instruction); 708 709 try expect(!function.register_manager.isRegAllocated(.r2)); 710 try expect(function.register_manager.isRegAllocated(.r3)); 711 try expect(function.register_manager.isRegFree(.r2)); 712 try expect(!function.register_manager.isRegFree(.r3)); 713 714 // Spill r3 715 try function.register_manager.getReg(.r3, mock_instruction); 716 717 try expect(!function.register_manager.isRegAllocated(.r2)); 718 try expect(function.register_manager.isRegAllocated(.r3)); 719 try expect(function.register_manager.isRegFree(.r2)); 720 try expect(!function.register_manager.isRegFree(.r3)); 721 try expectEqualSlices(MockRegister1, &[_]MockRegister1{.r3}, function.spilled.items); 722 } 723 724 test "allocReg with multiple, non-overlapping register classes" { 725 const allocator = std.testing.allocator; 726 727 var function = MockFunction3{ 728 .allocator = allocator, 729 }; 730 defer function.deinit(); 731 732 const gp = MockRegister3.gp; 733 const ext = MockRegister3.ext; 734 735 const gp_reg = try function.register_manager.allocReg(null, gp); 736 737 try expect(function.register_manager.isRegAllocated(.r0)); 738 try expect(!function.register_manager.isRegAllocated(.x0)); 739 740 const ext_reg = try function.register_manager.allocReg(null, ext); 741 742 try expect(function.register_manager.isRegAllocated(.r0)); 743 try expect(!function.register_manager.isRegAllocated(.r1)); 744 try expect(function.register_manager.isRegAllocated(.x0)); 745 try expect(!function.register_manager.isRegAllocated(.x1)); 746 try expect(gp_reg.enc() == ext_reg.enc()); 747 748 const ext_lock = function.register_manager.lockRegAssumeUnused(ext_reg); 749 defer function.register_manager.unlockReg(ext_lock); 750 751 const ext_reg2 = try function.register_manager.allocReg(null, ext); 752 753 try expect(function.register_manager.isRegAllocated(.r0)); 754 try expect(function.register_manager.isRegAllocated(.x0)); 755 try expect(!function.register_manager.isRegAllocated(.r1)); 756 try expect(function.register_manager.isRegAllocated(.x1)); 757 try expect(ext_reg2.enc() == MockRegister3.r1.enc()); 758 } 759