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Merge remote-tracking branch 'origin/trunk' into wasm-cli-option

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Richard Feldman 2021-08-25 23:05:53 -04:00
commit bc5b8bfbba
2 changed files with 38 additions and 47 deletions
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26
compiler/builtins/bitcode/src/dict.zig
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@ -63,27 +63,21 @@ fn capacityOfLevel(input: usize) usize {
// alignment of the key and value. The tag furthermore indicates
// which has the biggest aligmnent. If both are the same, we put
// the key first
const Alignment = enum(u8) {
Align16KeyFirst,
Align16ValueFirst,
Align8KeyFirst,
Align8ValueFirst,
const Alignment = extern struct {
bits: u8,
const VALUE_BEFORE_KEY_FLAG = 0b1000_0000;
fn toU32(self: Alignment) u32 {
switch (self) {
.Align16KeyFirst => return 16,
.Align16ValueFirst => return 16,
.Align8KeyFirst => return 8,
.Align8ValueFirst => return 8,
}
// xor to wipe the leftmost bit
return self.bits ^ Alignment.VALUE_BEFORE_KEY_FLAG;
}
fn keyFirst(self: Alignment) bool {
switch (self) {
.Align16KeyFirst => return true,
.Align16ValueFirst => return false,
.Align8KeyFirst => return true,
.Align8ValueFirst => return false,
if (self.bits & Alignment.VALUE_BEFORE_KEY_FLAG > 0) {
return false;
} else {
return true;
}
}
};