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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8411 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 0 insertions, 28 deletions

diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index 073ce19..0a9c8d1 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -1153,19 +1153,6 @@ void CWriter::visitCallInst(CallInst &I) {
         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
diff --git a/lib/Target/CBackend/Writer.cpp b/lib/Target/CBackend/Writer.cpp
index 073ce19..0a9c8d1 100644
--- a/lib/Target/CBackend/Writer.cpp
+++ b/lib/Target/CBackend/Writer.cpp
@@ -1153,19 +1153,6 @@ void CWriter::visitCallInst(CallInst &I) {
         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
diff --git a/lib/Target/X86/InstSelectSimple.cpp b/lib/Target/X86/InstSelectSimple.cpp
index 6712d94..85708ff 100644
--- a/lib/Target/X86/InstSelectSimple.cpp
+++ b/lib/Target/X86/InstSelectSimple.cpp
@@ -1044,7 +1044,6 @@ void ISel::visitIntrinsicCall(LLVMIntrinsic::ID ID, CallInst &CI) {
     addDirectMem(BuildMI(BB, X86::MOVrm32, 5), TmpReg2).addReg(TmpReg1);
     return;
 
-  case LLVMIntrinsic::unwind:     // llvm.unwind is not supported yet!
   case LLVMIntrinsic::longjmp:
   case LLVMIntrinsic::siglongjmp:
     BuildMI(BB, X86::CALLpcrel32, 1).addExternalSymbol("abort", true); 
diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp
index 6712d94..85708ff 100644
--- a/lib/Target/X86/X86ISelSimple.cpp
+++ b/lib/Target/X86/X86ISelSimple.cpp
@@ -1044,7 +1044,6 @@ void ISel::visitIntrinsicCall(LLVMIntrinsic::ID ID, CallInst &CI) {
     addDirectMem(BuildMI(BB, X86::MOVrm32, 5), TmpReg2).addReg(TmpReg1);
     return;
 
-  case LLVMIntrinsic::unwind:     // llvm.unwind is not supported yet!
   case LLVMIntrinsic::longjmp:
   case LLVMIntrinsic::siglongjmp:
     BuildMI(BB, X86::CALLpcrel32, 1).addExternalSymbol("abort", true);