diff options
Diffstat (limited to 'src/cmd')
| -rw-r--r-- | src/cmd/internal/obj/arm64/asm7.go | 27 |
1 files changed, 1 insertions, 26 deletions
diff --git a/src/cmd/internal/obj/arm64/asm7.go b/src/cmd/internal/obj/arm64/asm7.go index ccf8eda495..7addf0ddad 100644 --- a/src/cmd/internal/obj/arm64/asm7.go +++ b/src/cmd/internal/obj/arm64/asm7.go @@ -1674,32 +1674,7 @@ func log2(x uint64) uint32 { if x == 0 { panic("log2 of 0") } - n := uint32(0) - if x >= 1<<32 { - x >>= 32 - n += 32 - } - if x >= 1<<16 { - x >>= 16 - n += 16 - } - if x >= 1<<8 { - x >>= 8 - n += 8 - } - if x >= 1<<4 { - x >>= 4 - n += 4 - } - if x >= 1<<2 { - x >>= 2 - n += 2 - } - if x >= 1<<1 { - x >>= 1 - n += 1 - } - return n + return uint32(bits.Len64(x) - 1) } func autoclass(l int64) int { |