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| author | Jakub Konka <kubkon@jakubkonka.com> | 2020-11-11 00:38:49 +0100 |
|---|---|---|
| committer | Jakub Konka <kubkon@jakubkonka.com> | 2020-11-11 14:34:53 +0100 |
| commit | 993eb22a772323bfeef87cf783672c33b6a2cfa2 (patch) | |
| tree | 075b7edd4c487f0faa20792c1a01c0471eb8635d | |
| parent | f512676d0b4220a5f771110982657140c363a146 (diff) | |
| download | zig-993eb22a772323bfeef87cf783672c33b6a2cfa2.tar.gz zig-993eb22a772323bfeef87cf783672c33b6a2cfa2.zip | |
stage2 aarch64: add .memory prong in genSetReg
| -rw-r--r-- | src/codegen.zig | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/codegen.zig b/src/codegen.zig index d494476aad..eea87d70f1 100644 --- a/src/codegen.zig +++ b/src/codegen.zig @@ -2572,17 +2572,23 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movz(reg, @truncate(u16, x), 0).toU32()); mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movk(reg, @intCast(u16, x >> 16), 16).toU32()); } else if (x <= math.maxInt(u32)) { - mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movz(reg, @intCast(u16, x), 0).toU32()); - mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movk(reg, @intCast(u16, x >> 16), 16).toU32()); + mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movz(reg, @truncate(u16, x), 0).toU32()); + mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movk(reg, @truncate(u16, x >> 16), 16).toU32()); mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movk(reg, @intCast(u16, x >> 32), 32).toU32()); } else { - mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movz(reg, @intCast(u16, x), 0).toU32()); - mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movk(reg, @intCast(u16, x >> 16), 16).toU32()); - mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movk(reg, @intCast(u16, x >> 32), 32).toU32()); + mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movz(reg, @truncate(u16, x), 0).toU32()); + mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movk(reg, @truncate(u16, x >> 16), 16).toU32()); + mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movk(reg, @truncate(u16, x >> 32), 32).toU32()); mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.movk(reg, @intCast(u16, x >> 48), 48).toU32()); } }, .register => return self.fail(src, "TODO implement genSetReg for aarch64 {}", .{mcv}), + .memory => |addr| { + // The value is in memory at a hard-coded address. + // If the type is a pointer, it means the pointer address is at this memory location. + try self.genSetReg(src, reg, .{ .immediate = addr }); + mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.ldr(reg, .{ .rn = reg }).toU32()); + }, else => return self.fail(src, "TODO implement genSetReg for aarch64 {}", .{mcv}), }, .riscv64 => switch (mcv) { |