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Sema: add missed logic to checkPtrAttributes

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It wasn't checking bit pointer data.
This commit is contained in:
Andrew Kelley 2025-09-10 02:03:37 -07:00
parent 7ffe068a79
commit 725dec6aa7
3 changed files with 19 additions and 4 deletions
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13
src/Sema.zig
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@ -30670,6 +30670,19 @@ fn checkPtrAttributes(sema: *Sema, dest_ty: Type, inst_ty: Type, in_memory_resul
} }; } };
return false; return false;
} }
if (inst_info.packed_offset.host_size != dest_info.packed_offset.host_size or
inst_info.packed_offset.bit_offset != dest_info.packed_offset.bit_offset)
{
in_memory_result.* = .{ .ptr_bit_range = .{
.actual_host = inst_info.packed_offset.host_size,
.wanted_host = dest_info.packed_offset.host_size,
.actual_offset = inst_info.packed_offset.bit_offset,
.wanted_offset = dest_info.packed_offset.bit_offset,
} };
return false;
}
return true; return true;
} }

5
test/cases/compile_errors/implicitly_increasing_pointer_alignment.zig
View File

@ -14,6 +14,7 @@ fn bar(x: *u32) void {
// error // error
// //
// :8:9: error: expected type '*u32', found '*align(1) u32' // :8:9: error: expected type '*u32', found '*align(8:8:8) u32'
// :8:9: note: pointer alignment '1' cannot cast into pointer alignment '4' // :8:9: note: pointer host size '8' cannot cast into pointer host size '0'
// :8:9: note: pointer bit offset '8' cannot cast into pointer bit offset '0'
// :11:11: note: parameter type declared here // :11:11: note: parameter type declared here

5
test/cases/compile_errors/implicitly_increasing_slice_alignment.zig
View File

@ -15,5 +15,6 @@ fn bar(x: []u32) void {
// error // error
// //
// :9:22: error: expected type '*[1]u32', found '*align(1) u32' // :9:22: error: expected type '*[1]u32', found '*align(8:8:8) u32'
// :9:22: note: pointer alignment '1' cannot cast into pointer alignment '4' // :9:22: note: pointer host size '8' cannot cast into pointer host size '0'
// :9:22: note: pointer bit offset '8' cannot cast into pointer bit offset '0'