llvm-dwp: Simplify hashing code a bit

llvm-svn: 265426
2016-04-05 17:51:40 +00:00 · 2016-04-05 17:51:40 +00:00 · 9b49256fa8
parent d2f44d8de0
commit 9b49256fa8
1 changed files with 2 additions and 1 deletions
--- a/llvm/tools/llvm-dwp/llvm-dwp.cpp
+++ b/llvm/tools/llvm-dwp/llvm-dwp.cpp
@ -288,10 +288,11 @@ writeIndex(MCStreamer &Out, MCSection *Section,
  for (const auto &P : IndexEntries) {
    auto S = P.first;
    auto H = S & Mask;
+    auto HP = ((S >> 32) & Mask) | 1;
    while (Buckets[H]) {
      assert(S != IndexEntries.begin()[Buckets[H] - 1].first &&
             "Duplicate unit");
-      H = (H + (((S >> 32) & Mask) | 1)) % Buckets.size();
+      H = (H + HP) & Mask;
    }
    Buckets[H] = i + 1;
    ++i;