Now that PR633 is implemented, the CBE can know to emit _setjmp/_longjmp
when available. This speeds up hexxagon from 18.61s to 16.61s with the CBE on
PPC Mac OS (for reference, LLC is 15.48s and GCC is 23.35s).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28697 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/CBackend/Writer.cpp b/lib/Target/CBackend/Writer.cpp
index 36336b3..692232b 100644
--- a/lib/Target/CBackend/Writer.cpp
+++ b/lib/Target/CBackend/Writer.cpp
@@ -1779,11 +1779,17 @@
Out << ')';
return;
case Intrinsic::setjmp:
+#if defined(HAVE__SETJMP) && defined(HAVE__LONGJMP)
+ Out << "_"; // Use _setjmp on systems that support it!
+#endif
Out << "setjmp(*(jmp_buf*)";
writeOperand(I.getOperand(1));
Out << ')';
return;
case Intrinsic::longjmp:
+#if defined(HAVE__SETJMP) && defined(HAVE__LONGJMP)
+ Out << "_"; // Use _longjmp on systems that support it!
+#endif
Out << "longjmp(*(jmp_buf*)";
writeOperand(I.getOperand(1));
Out << ", ";