aarch64: handle register downgrading in truncRegister

2026-01-17 21:05:12 +00:00 · 2022-11-04 12:22:39 +01:00 · 2022-11-04 12:22:39 +01:00 · df0212bf47
commit df0212bf47
parent 1d68045919
1 changed files with 2 additions and 4 deletions
--- a/src/arch/aarch64/CodeGen.zig
+++ b/src/arch/aarch64/CodeGen.zig
@ -1117,13 +1117,11 @@ fn truncRegister(
            });
        },
        32, 64 => {
-            assert(dest_reg.size() == operand_reg.size());
-
            _ = try self.addInst(.{
                .tag = .mov_register,
                .data = .{ .rr = .{
-                    .rd = dest_reg,
-                    .rn = operand_reg,
+                    .rd = if (int_bits == 32) dest_reg.toW() else dest_reg.toX(),
+                    .rn = if (int_bits == 32) operand_reg.toW() else operand_reg.toX(),
                } },
            });
        },