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| author | Simonas Kazlauskas <git@kazlauskas.me> | 2016-01-21 18:57:43 +0200 |
|---|---|---|
| committer | Simonas Kazlauskas <git@kazlauskas.me> | 2016-01-21 19:01:43 +0200 |
| commit | e74aa2bdff5420458f7dddce070e8a00a6dfdfe8 (patch) | |
| tree | 2d14596032ad03f4e2ce6ae90cad386d190ca38b /src/librustc_data_structures/bitvec.rs | |
| parent | c4c9628de7d4e970b2cb43d0f1a4c8f9ad03aca1 (diff) | |
| download | rust-e74aa2bdff5420458f7dddce070e8a00a6dfdfe8.tar.gz rust-e74aa2bdff5420458f7dddce070e8a00a6dfdfe8.zip | |
[MIR] Promote temps to alloca on multi-assignment
Fixes #31002
Diffstat (limited to 'src/librustc_data_structures/bitvec.rs')
| -rw-r--r-- | src/librustc_data_structures/bitvec.rs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/librustc_data_structures/bitvec.rs b/src/librustc_data_structures/bitvec.rs index f26307fd8c5..70f50b4c042 100644 --- a/src/librustc_data_structures/bitvec.rs +++ b/src/librustc_data_structures/bitvec.rs @@ -24,12 +24,14 @@ impl BitVector { (self.data[word] & mask) != 0 } + /// Returns true if the bit has changed. pub fn insert(&mut self, bit: usize) -> bool { let (word, mask) = word_mask(bit); let data = &mut self.data[word]; let value = *data; - *data = value | mask; - (value | mask) != value + let new_value = value | mask; + *data = new_value; + new_value != value } pub fn insert_all(&mut self, all: &BitVector) -> bool { |