[Attributor][FIX] Silence sign-compare warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375384 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/IPO/Attributor.cpp b/lib/Transforms/IPO/Attributor.cpp
index e7b7404b171c9137ca062d527afcce17671100cc..95f47345d8fd06eba5839f4543643d2512b93bdc 100644 (file)
--- a/lib/Transforms/IPO/Attributor.cpp
+++ b/lib/Transforms/IPO/Attributor.cpp
@@ -2994,7 +2994,7 @@ struct AANoCaptureImpl : public AANoCapture {
     if (F.doesNotThrow() && ArgNo >= 0) {
       for (unsigned u = 0, e = F.arg_size(); u< e; ++u)
         if (F.hasParamAttribute(u, Attribute::Returned)) {
-          if (u == ArgNo)
+          if (u == unsigned(ArgNo))
             State.removeAssumedBits(NOT_CAPTURED_IN_RET);
           else if (F.onlyReadsMemory())
             State.addKnownBits(NO_CAPTURE);