authorgravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2023-04-12 10:26:13+02:00
committergravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2023-04-13 11:47:51+02:00
logaab0039b42ba40fe666782b4f0bd08d0e5d3c460
treeb4eaddf48116c92c2b20472d8d6b20ec03e23993
parent0abaf5f88a687d29dea8556a3c4e79b4a61815e3

x86_64: simplify genSetStack() when storing value from memory

1 files changed, 21 insertions(+), 2 deletions(-)

src/arch/x86_64/CodeGen.zig+21-2
...@@ -7324,11 +7324,30 @@ fn genSetStack(self: *Self, ty: Type, stack_offset: i32, mcv: MCValue, opts: Inl...@@ -7324,11 +7324,30 @@ fn genSetStack(self: *Self, ty: Type, stack_offset: i32, mcv: MCValue, opts: Inl
7324 const reg = try self.copyToTmpRegister(ty, mcv);7324 const reg = try self.copyToTmpRegister(ty, mcv);
7325 return self.genSetStack(ty, stack_offset, MCValue{ .register = reg }, opts);7325 return self.genSetStack(ty, stack_offset, MCValue{ .register = reg }, opts);
7326 } else {7326 } else {
7327 const addr_reg = try self.register_manager.allocReg(null, gp);7327 const addr_reg = (try self.register_manager.allocReg(null, gp)).to64();
7328 const addr_lock = self.register_manager.lockRegAssumeUnused(addr_reg);7328 const addr_lock = self.register_manager.lockRegAssumeUnused(addr_reg);
7329 defer self.register_manager.unlockReg(addr_lock);7329 defer self.register_manager.unlockReg(addr_lock);
73307330
7331 try self.loadMemPtrIntoRegister(addr_reg, Type.usize, mcv);7331 switch (mcv) {
7332 .memory => |addr| try self.genSetReg(Type.usize, addr_reg, .{ .immediate = addr }),
7333 .linker_load => |load_struct| {
7334 const atom_index = if (self.bin_file.cast(link.File.MachO)) |macho_file| blk: {
7335 const atom = try macho_file.getOrCreateAtomForDecl(self.mod_fn.owner_decl);
7336 break :blk macho_file.getAtom(atom).getSymbolIndex().?;
7337 } else if (self.bin_file.cast(link.File.Coff)) |coff_file| blk: {
7338 const atom = try coff_file.getOrCreateAtomForDecl(self.mod_fn.owner_decl);
7339 break :blk coff_file.getAtom(atom).getSymbolIndex().?;
7340 } else unreachable;
7341
7342 switch (load_struct.type) {
7343 .import => unreachable,
7344 .got => try self.asmMovLinker(addr_reg, atom_index, load_struct),
7345 .direct => try self.asmLeaLinker(addr_reg, atom_index, load_struct),
7346 }
7347 },
7348 else => unreachable,
7349 }
7350
7332 try self.genInlineMemcpy(7351 try self.genInlineMemcpy(
7333 .{ .ptr_stack_offset = stack_offset },7352 .{ .ptr_stack_offset = stack_offset },
7334 .{ .register = addr_reg },7353 .{ .register = addr_reg },