search for: tc_twoaddr_crash

...g 'guessInstructionProperties = 0' in the SystemZ backend. We have found this to be useful, and discovered many instructions where the hasSideEffects flag was incorrectly set while it actually shouldn't. The attached patch and test case triggers an assert in TwoAddress.  (bin/llc ./tc_TwoAddr_crash.ll -mtriple=s390x-linux-gnu -mcpu=z13) The only change in the patch is to remove the side effects flag from one instruction: -  def RISBMux : RotateSelectRIEfPseudo<GRX32, GRX32>; +  let hasSideEffects = 0 in +    def RISBMux : RotateSelectRIEfPseudo<GRX32, GRX32>; The input to TwoA...

...;guessInstructionProperties = 0' in the SystemZ backend. We have found this to be useful, and discovered many instructions where the hasSideEffects flag was incorrectly set while it actually shouldn't. > > The attached patch and test case triggers an assert in TwoAddress. (bin/llc ./tc_TwoAddr_crash.ll -mtriple=s390x-linux-gnu -mcpu=z13) > > The only change in the patch is to remove the side effects flag from one instruction: > > - def RISBMux : RotateSelectRIEfPseudo<GRX32, GRX32>; > + let hasSideEffects = 0 in > + def RISBMux : RotateSelectRIEfPseudo<GRX32,...