[PATCH] D13914: Tolerate negative offset when matching sample profile.

[Dehao Chen via llvm-commits]

danielcdh added inline comments.

================
Comment at: lib/Transforms/IPO/SampleProfile.cpp:186
@@ +185,3 @@
+unsigned SampleProfileLoader::getOffset(unsigned L, unsigned H) const {
+  return (L - H) & 0xffff;
+}
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Added sanity check for LineLocation in text and binary reader. For gcov reader, the reader itself use bit operation to set LineLocation, which ensures that it's always within 16 bits.


http://reviews.llvm.org/D13914