From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Tue, 7 Oct 2014 20:42:47 +0000 (+0000)
Subject: Optimize COFFObjectFile::sectionContainsSymbol a bit.
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=fbf9a40f5bb5b82e4df6ffb0d2897775034c82f7

Optimize COFFObjectFile::sectionContainsSymbol a bit.

There is no need to compute the coff_section of the symbol just to compare the
pointer.

Inspired by the ELF implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219233 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Object/COFFObjectFile.cpp b/lib/Object/COFFObjectFile.cpp
index bd7015713f9..6e1f6832674 100644
--- a/lib/Object/COFFObjectFile.cpp
+++ b/lib/Object/COFFObjectFile.cpp
@@ -347,13 +347,8 @@ std::error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl SecRef,
                                                       bool &Result) const {
   const coff_section *Sec = toSec(SecRef);
   COFFSymbolRef Symb = getCOFFSymbol(SymbRef);
-  const coff_section *SymbSec = nullptr;
-  if (std::error_code EC = getSection(Symb.getSectionNumber(), SymbSec))
-    return EC;
-  if (SymbSec == Sec)
-    Result = true;
-  else
-    Result = false;
+  int32_t SecNumber = (Sec - SectionTable) + 1;
+  Result = SecNumber == Symb.getSectionNumber();
   return object_error::success;
 }