Rewrite assert to avoid warning when the record element type is byte-sized.

BitstreamWriter asserts that when blob data is written from the record
element vector, each element fits in a byte. However, if the record
elements are specified as a SmallVector of 'char', this causes a warning
from -Wtautological-constant-out-of-range-compare. Fix this by using
llvm::isUInt<8> instead of a plain comparison against 256.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181545 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 1 deletions

diff --git a/include/llvm/Bitcode/BitstreamWriter.h b/include/llvm/Bitcode/BitstreamWriter.h
index a837211875..f40a0d1d25 100644
--- a/include/llvm/Bitcode/BitstreamWriter.h
+++ b/include/llvm/Bitcode/BitstreamWriter.h
@@ -381,7 +381,8 @@ private:
           BlobData = 0;
         } else {
           for (unsigned e = Vals.size(); RecordIdx != e; ++RecordIdx) {
-            assert(Vals[RecordIdx] < 256 && "Value too large to emit as blob");
+            assert(isUInt<8>(Vals[RecordIdx]) &&
+                   "Value too large to emit as blob");
             WriteByte((unsigned char)Vals[RecordIdx]);
           }
         }