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| author | Björn Gustavsson <[email protected]> | 2015-09-15 16:50:19 +0200 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2015-09-28 10:26:39 +0200 |
| commit | f7fd259f27bce0058d996af6287e6bb81d12ea47 (patch) | |
| tree | ab65c3b4e85df0cc8e70b0ab97b7dcd84754ecd9 /lib/compiler/src/sys_core_fold.erl | |
| parent | 9504c0dd71d0b1b49251a97f45c71c8882ce7708 (diff) | |
| download | otp-f7fd259f27bce0058d996af6287e6bb81d12ea47.tar.gz otp-f7fd259f27bce0058d996af6287e6bb81d12ea47.tar.bz2 otp-f7fd259f27bce0058d996af6287e6bb81d12ea47.zip | |
sys_core_fold: Extend the list of BIFs that return integers
Knowing that a BIF returns an integer makes it possible to
replace '==' with the cheaper '=:=' test.
Diffstat (limited to 'lib/compiler/src/sys_core_fold.erl')
| -rw-r--r-- | lib/compiler/src/sys_core_fold.erl | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl index 27d023d067..0a16776bd4 100644 --- a/lib/compiler/src/sys_core_fold.erl +++ b/lib/compiler/src/sys_core_fold.erl @@ -2793,12 +2793,18 @@ extract_type_1(Expr, Sub) -> true -> bool end. +returns_integer('band', [_,_]) -> true; +returns_integer('bnot', [_]) -> true; +returns_integer('bor', [_,_]) -> true; +returns_integer('bxor', [_,_]) -> true; returns_integer(bit_size, [_]) -> true; returns_integer('bsl', [_,_]) -> true; returns_integer('bsr', [_,_]) -> true; returns_integer(byte_size, [_]) -> true; +returns_integer('div', [_,_]) -> true; returns_integer(length, [_]) -> true; returns_integer('rem', [_,_]) -> true; +returns_integer('round', [_]) -> true; returns_integer(size, [_]) -> true; returns_integer(tuple_size, [_]) -> true; returns_integer(trunc, [_]) -> true; |