[CSSPGO][Preinliner] Set default value of sample-profile-inline-limit…

…-max to 3000

The default value of sample-profile-inline-limit-max is defined as 10000 in sampleprofile.cpp. This is too big for cspreinliner which works with assembly size instead of IR size. The value 3000 turns out to be a good tradeoff. Compared to the value 10000, 3000 gives as good performance and code size, but lower build time.

Reviewed By: wenlei, wlei

Differential Revision: https://reviews.llvm.org/D127330

llvm/tools/llvm-profgen/CSPreInliner.cpp

@@ -69,6 +69,8 @@ CSPreInliner::CSPreInliner(SampleProfileMap &Profiles, ProfiledBinary &Binary,
     SampleHotCallSiteThreshold = 1500;
   if (!SampleColdCallSiteThreshold.getNumOccurrences())
     SampleColdCallSiteThreshold = 0;
+  if (!ProfileInlineLimitMax.getNumOccurrences())
+    ProfileInlineLimitMax = 3000;
 }
 
 std::vector<StringRef> CSPreInliner::buildTopDownOrder() {