zig

commit c619551f7d0aae794d628fc7d2f34cfc70f1cba3 (tree)
parent 6235762c095e0031b4d5c3da1687f184a2125988
Author: Jacob Young <jacobly0@users.noreply.github.com>
Date:   Mon,  5 Feb 2024 06:55:22 +0100

x86_64: fix incorrect alignment check

Diffstat:
M
src/arch/x86_64/CodeGen.zig
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/arch/x86_64/CodeGen.zig b/src/arch/x86_64/CodeGen.zig
@@ -13715,7 +13715,9 @@ fn genSetReg(self: *Self, dst_reg: Register, ty: Type, src_mcv: MCValue) InnerEr
             .load_frame => |frame_addr| try self.moveStrategy(
                 ty,
                 dst_reg.class(),
-                self.getFrameAddrAlignment(frame_addr).compare(.gte, ty.abiAlignment(mod)),
+                self.getFrameAddrAlignment(frame_addr).compare(.gte, Alignment.fromLog2Units(
+                    std.math.log2_int_ceil(u10, @divExact(dst_reg.bitSize(), 8)),
+                )),
             ),
             .lea_frame => .{ .move = .{ ._, .lea } },
             else => unreachable,