Fix for bug 840. Only use noinline attribute if gcc version >= 3.4
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29311 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp
index d088b2f..8a62ed8 100644
--- a/utils/TableGen/DAGISelEmitter.cpp
+++ b/utils/TableGen/DAGISelEmitter.cpp
@@ -3363,11 +3363,9 @@
}
CallerCode += ");";
CalleeCode += ") ";
-#ifdef __GNUC__
// Prevent emission routines from being inlined to reduce selection
// routines stack frame sizes.
- CalleeCode += "__attribute__((noinline)) ";
-#endif
+ CalleeCode += "NOINLINE ";
CalleeCode += "{\n" + CalleeDecls;
for (int j = LastPred+1; j < CodeSize; ++j)
CalleeCode += " " + GeneratedCode[j].second + '\n';
@@ -3632,6 +3630,11 @@
<< "// *** instruction selector class. These functions are really "
<< "methods.\n\n";
+ OS << "#if defined(__GNUC__) && \\\n";
+ OS << " ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 4)))\n";
+ OS << "#define NOINLINE __attribute__((noinline))\n";
+ OS << "#endif\n\n";
+
OS << "// Instance var to keep track of multiply used nodes that have \n"
<< "// already been selected.\n"
<< "std::map<SDOperand, SDOperand> CodeGenMap;\n";