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Merge pull request #1686 from rtfeldman/refcounting-cleanup

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Refcounting cleanup
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Richard Feldman 2021-09-11 13:33:36 -04:00 • committed by GitHub
commit 0dd1395331
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7 changed files with 120 additions and 160 deletions
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1
compiler/builtins/bitcode/src/main.zig
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@ -108,6 +108,7 @@ const utils = @import("utils.zig");
comptime {
exportUtilsFn(utils.test_panic, "test_panic");
exportUtilsFn(utils.decrefC, "decref");
exportUtilsFn(utils.decrefCheckNullC, "decref_check_null");
@export(utils.panic, .{ .name = "roc_builtins.utils." ++ "panic", .linkage = .Weak });
}

10
compiler/builtins/bitcode/src/utils.zig
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@ -117,6 +117,16 @@ pub fn decrefC(
return @call(.{ .modifier = always_inline }, decref_ptr_to_refcount, .{ bytes, alignment });
}
pub fn decrefCheckNullC(
bytes_or_null: ?[*]u8,
alignment: u32,
) callconv(.C) void {
if (bytes_or_null) |bytes| {
const isizes: [*]isize = @ptrCast([*]isize, @alignCast(@sizeOf(isize), bytes));
return @call(.{ .modifier = always_inline }, decref_ptr_to_refcount, .{ isizes - 1, alignment });
}
}
pub fn decref(
bytes_or_null: ?[*]u8,
data_bytes: usize,