From: Chris Lattner <sabre@nondot.org>
Date: Tue, 6 Jun 2006 21:45:47 +0000 (+0000)
Subject: Now that PR633 is implemented, the CBE can know to emit _setjmp/_longjmp
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=475c55393a67ae096d4ec7baffee5830e68e13c1;p=oota-llvm.git

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/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index 36336b38d58..692232b78e0 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -1779,11 +1779,17 @@ void CWriter::visitCallInst(CallInst &I) {
         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 << ", ";
diff --git a/lib/Target/CBackend/Writer.cpp b/lib/Target/CBackend/Writer.cpp
index 36336b38d58..692232b78e0 100644
--- a/lib/Target/CBackend/Writer.cpp
+++ b/lib/Target/CBackend/Writer.cpp
@@ -1779,11 +1779,17 @@ void CWriter::visitCallInst(CallInst &I) {
         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 << ", ";