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Diffstat (limited to 'libgo/go/math/abs.go')
| -rw-r--r-- | libgo/go/math/abs.go | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libgo/go/math/abs.go b/libgo/go/math/abs.go index 433d0f72737..1b7c7c1820c 100644 --- a/libgo/go/math/abs.go +++ b/libgo/go/math/abs.go @@ -18,10 +18,13 @@ func Abs(x float64) float64 { } func abs(x float64) float64 { - switch { - case x < 0: + // TODO: once golang.org/issue/13095 is fixed, change this to: + // return Float64frombits(Float64bits(x) &^ (1 << 63)) + // But for now, this generates better code and can also be inlined: + if x < 0 { return -x - case x == 0: + } + if x == 0 { return 0 // return correctly abs(-0) } return x |