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switch to wrapping subtract since it is safe here

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Brendan Hansknecht 2022-08-01 22:32:16 -07:00
parent afaf59a050
commit ca8b052094
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crates/compiler/builtins/bitcode/src/utils.zig
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@ -197,7 +197,7 @@ inline fn decref_ptr_to_refcount(
if (refcount != REFCOUNT_MAX_ISIZE) { if (refcount != REFCOUNT_MAX_ISIZE) {
switch (RC_TYPE) { switch (RC_TYPE) {
Refcount.normal => { Refcount.normal => {
refcount_ptr[0] = refcount - 1; refcount_ptr[0] = refcount -% 1;
if (refcount == REFCOUNT_ONE_ISIZE) { if (refcount == REFCOUNT_ONE_ISIZE) {
dealloc(@ptrCast([*]u8, refcount_ptr) - (extra_bytes - @sizeOf(usize)), alignment); dealloc(@ptrCast([*]u8, refcount_ptr) - (extra_bytes - @sizeOf(usize)), alignment);
} }