[AArch64][GlobalISel] Implement selection for the llvm.trap intrinsic.
rdar://38674040
llvm-svn: 330831
diff --git a/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp b/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
index 309f612..4124302 100644
--- a/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
+++ b/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
@@ -1466,6 +1466,15 @@
case TargetOpcode::G_VASTART:
return STI.isTargetDarwin() ? selectVaStartDarwin(I, MF, MRI)
: selectVaStartAAPCS(I, MF, MRI);
+ case TargetOpcode::G_INTRINSIC_W_SIDE_EFFECTS:
+ if (!I.getOperand(0).isIntrinsicID())
+ return false;
+ if (I.getOperand(0).getIntrinsicID() != Intrinsic::trap)
+ return false;
+ BuildMI(MBB, I, I.getDebugLoc(), TII.get(AArch64::BRK))
+ .addImm(1);
+ I.eraseFromParent();
+ return true;
case TargetOpcode::G_IMPLICIT_DEF:
I.setDesc(TII.get(TargetOpcode::IMPLICIT_DEF));
const LLT DstTy = MRI.getType(I.getOperand(0).getReg());