diff options
Diffstat (limited to 'lib/Support/BlockFrequency.cpp')
-rw-r--r-- | lib/Support/BlockFrequency.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/lib/Support/BlockFrequency.cpp b/lib/Support/BlockFrequency.cpp index 8de517fad6..5e45e46cf9 100644 --- a/lib/Support/BlockFrequency.cpp +++ b/lib/Support/BlockFrequency.cpp @@ -47,9 +47,7 @@ static uint64_t div96bit(uint64_t W[2], uint32_t D) { uint64_t x = W[1]; unsigned i; - // This is really a 64-bit division. - if (!x) - return y / D; + assert(x != 0 && "This is really a 64-bit division"); // This long division algorithm automatically saturates on overflow. for (i = 0; i < 64 && x; ++i) { @@ -75,7 +73,7 @@ void BlockFrequency::scale(uint32_t N, uint32_t D) { uint64_t MulRes = (MulHi << 32) + MulLo; // If the product fits in 64 bits, just use built-in division. - if (MulHi <= UINT32_MAX && MulRes <= MulLo) { + if (MulHi <= UINT32_MAX && MulRes >= MulLo) { Frequency = MulRes / D; return; } |