Remove assert from hot code path and add a clarifying comment.
The assert wasn't adding much value but slowed down Release+Asserts builds.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145082 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/Lexer.cpp b/lib/Lex/Lexer.cpp
index a115579..a9b11d6 100644
--- a/lib/Lex/Lexer.cpp
+++ b/lib/Lex/Lexer.cpp
@@ -1920,10 +1920,10 @@
while (CurPtr+16 <= BufferEnd) {
int cmp = _mm_movemask_epi8(_mm_cmpeq_epi8(*(__m128i*)CurPtr, Slashes));
if (cmp != 0) {
- // Adjust the pointer to the first '/' that was found.
- CurPtr += llvm::CountTrailingZeros_32(cmp);
- C = *CurPtr++;
- assert(C == '/');
+ // Adjust the pointer to point directly after the first slash. It's
+ // not necessary to set C here, it will be overwritten at the end of
+ // the outer loop.
+ CurPtr += llvm::CountTrailingZeros_32(cmp) + 1;
goto FoundSlash;
}
CurPtr += 16;