diff options
author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-06-28 18:33:19 +0000 |
---|---|---|
committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-06-28 18:33:19 +0000 |
commit | a45b375610b24243ad131c96142f7f57c08c2d43 (patch) | |
tree | 7c1ee64d9bb4aefbb922044ba0c33a2d1c9fdd6a | |
parent | d7648ff20f8bbc8217a26576ca96addc55e003de (diff) | |
download | external_llvm-a45b375610b24243ad131c96142f7f57c08c2d43.zip external_llvm-a45b375610b24243ad131c96142f7f57c08c2d43.tar.gz external_llvm-a45b375610b24243ad131c96142f7f57c08c2d43.tar.bz2 |
Stylistic cleanups, no functional change.
- Use static functions instead of anonymous namespace.
- Appease the Doxygen lobby.
- Use 0-based induction variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185185 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Support/BlockFrequency.cpp | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/lib/Support/BlockFrequency.cpp b/lib/Support/BlockFrequency.cpp index 08fa620..6e4d6b1 100644 --- a/lib/Support/BlockFrequency.cpp +++ b/lib/Support/BlockFrequency.cpp @@ -18,10 +18,8 @@ using namespace llvm; -namespace { - -/// mult96bit - Multiply FREQ by N and store result in W array. -void mult96bit(uint64_t freq, uint32_t N, uint64_t W[2]) { +/// Multiply FREQ by N and store result in W array. +static void mult96bit(uint64_t freq, uint32_t N, uint64_t W[2]) { uint64_t u0 = freq & UINT32_MAX; uint64_t u1 = freq >> 32; @@ -42,15 +40,15 @@ void mult96bit(uint64_t freq, uint32_t N, uint64_t W[2]) { } -/// div96bit - Divide 96-bit value stored in W array by D. +/// Divide 96-bit value stored in W array by D. /// Return 64-bit quotient, saturated to UINT64_MAX on overflow. -uint64_t div96bit(uint64_t W[2], uint32_t D) { +static uint64_t div96bit(uint64_t W[2], uint32_t D) { uint64_t y = W[0]; uint64_t x = W[1]; - int i; + unsigned i; // This long division algorithm automatically saturates on overflow. - for (i = 1; i <= 64 && x; ++i) { + for (i = 0; i < 64 && x; ++i) { uint32_t t = (int)x >> 31; x = (x << 1) | (y >> 63); y = y << 1; @@ -60,10 +58,9 @@ uint64_t div96bit(uint64_t W[2], uint32_t D) { } } - return y << (64 - i + 1); + return y << (64 - i); } -} void BlockFrequency::scale(uint32_t N, uint32_t D) { assert(D != 0 && "Division by zero"); |