[llvm-commits] CVS: llvm/lib/CWriter/Writer.cpp

Chris Lattner lattner at cs.uiuc.edu
Mon Sep 8 14:45:04 PDT 2003


Changes in directory llvm/lib/CWriter:

Writer.cpp updated: 1.121 -> 1.122

---
Log message:

Eliminate support for the llvm.unwind intrinisic, using the Unwind instruction instead


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Diffs of the changes:

Index: llvm/lib/CWriter/Writer.cpp
diff -u llvm/lib/CWriter/Writer.cpp:1.121 llvm/lib/CWriter/Writer.cpp:1.122
--- llvm/lib/CWriter/Writer.cpp:1.121	Mon Sep  8 13:54:50 2003
+++ llvm/lib/CWriter/Writer.cpp	Mon Sep  8 14:44:20 2003
@@ -1153,19 +1153,6 @@
         Out << ")";
         return;
 
-      case LLVMIntrinsic::unwind:
-        // The unwind intrinsic calls a control flow transfer out of the current
-        // function, unwinding the stack until a caller who used the invoke
-        // instruction is found.  In this context, we code generated the invoke
-        // instruction to add an entry to the top of the jmpbuf_list.  Thus,
-        // here we just have to longjmp to the specified handler.
-        Out << "if (__llvm_jmpbuf_list == 0) {  /* llvm.unwind */\n"
-            << "    printf(\"throw found with no handler!\\n\"); abort();\n"
-            << "  }\n"
-            << "  longjmp(__llvm_jmpbuf_list->buf, 1)";
-        return;
-
-        
       case LLVMIntrinsic::setjmp:
       case LLVMIntrinsic::sigsetjmp:
         // This instrinsic should never exist in the program, but until we get





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