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Add support for the sig(set|long)jmp intrinsics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7951 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1139,6 +1139,7 @@ void CWriter::visitCallInst(CallInst &I) {
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return;
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case LLVMIntrinsic::setjmp:
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case LLVMIntrinsic::sigsetjmp:
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// This instrinsic should never exist in the program, but until we get
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// setjmp/longjmp transformations going on, we should codegen it to
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// something reasonable. This will allow code that never calls longjmp
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@ -1146,7 +1147,9 @@ void CWriter::visitCallInst(CallInst &I) {
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Out << "0";
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return;
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case LLVMIntrinsic::longjmp:
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// Treat longjmp the same as setjmp
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case LLVMIntrinsic::siglongjmp:
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// Longjmp is not implemented, and never will be. It would cause an
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// exception throw.
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Out << "abort()";
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return;
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}
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@ -1139,6 +1139,7 @@ void CWriter::visitCallInst(CallInst &I) {
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return;
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case LLVMIntrinsic::setjmp:
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case LLVMIntrinsic::sigsetjmp:
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// This instrinsic should never exist in the program, but until we get
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// setjmp/longjmp transformations going on, we should codegen it to
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// something reasonable. This will allow code that never calls longjmp
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@ -1146,7 +1147,9 @@ void CWriter::visitCallInst(CallInst &I) {
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Out << "0";
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return;
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case LLVMIntrinsic::longjmp:
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// Treat longjmp the same as setjmp
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case LLVMIntrinsic::siglongjmp:
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// Longjmp is not implemented, and never will be. It would cause an
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// exception throw.
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Out << "abort()";
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return;
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}
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@ -1433,6 +1433,7 @@ bool CodeGenIntrinsic(LLVMIntrinsic::ID iid, CallInst &callInstr,
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addReg(callInstr.getOperand(1)));
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return true;
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case LLVMIntrinsic::sigsetjmp:
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case LLVMIntrinsic::setjmp: {
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// act as if we return 0
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unsigned g0 = target.getRegInfo().getZeroRegNum();
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@ -1441,6 +1442,7 @@ bool CodeGenIntrinsic(LLVMIntrinsic::ID iid, CallInst &callInstr,
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return true;
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}
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case LLVMIntrinsic::siglongjmp:
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case LLVMIntrinsic::longjmp: {
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// call abort()
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Module* M = callInstr.getParent()->getParent()->getParent();
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@ -978,10 +978,12 @@ void ISel::visitIntrinsicCall(LLVMIntrinsic::ID ID, CallInst &CI) {
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return;
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case LLVMIntrinsic::longjmp:
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case LLVMIntrinsic::siglongjmp:
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BuildMI(X86::CALLpcrel32, 1).addExternalSymbol("abort", true);
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return;
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case LLVMIntrinsic::setjmp:
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case LLVMIntrinsic::sigsetjmp:
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// Setjmp always returns zero...
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BuildMI(BB, X86::MOVir32, 1, getReg(CI)).addZImm(0);
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return;
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@ -978,10 +978,12 @@ void ISel::visitIntrinsicCall(LLVMIntrinsic::ID ID, CallInst &CI) {
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return;
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case LLVMIntrinsic::longjmp:
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case LLVMIntrinsic::siglongjmp:
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BuildMI(X86::CALLpcrel32, 1).addExternalSymbol("abort", true);
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return;
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case LLVMIntrinsic::setjmp:
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case LLVMIntrinsic::sigsetjmp:
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// Setjmp always returns zero...
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BuildMI(BB, X86::MOVir32, 1, getReg(CI)).addZImm(0);
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return;
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