Revert r310919 - [globalisel][tablegen] Support zero-instruction emission.
As expected, this failed on the windows bots but the instrumentation showed
something interesting. The ADD8ri and INC8r rules are never directly compared
on the windows machines. That implies that the issue lies in transitivity of
the Compare predicate. I believe I've already verified that but maybe I missed
something.
llvm-svn: 310922
diff --git a/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp b/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
index 22586a1..1b45f87 100644
--- a/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
+++ b/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
@@ -1163,18 +1163,8 @@
case TargetOpcode::G_INTTOPTR:
- // The importer is currently unable to import pointer types since they
- // didn't exist in SelectionDAG.
- return selectCopy(I, TII, MRI, TRI, RBI);
-
case TargetOpcode::G_BITCAST:
- // Imported SelectionDAG rules can handle every bitcast except those that
- // bitcast from a type to the same type. Ideally, these shouldn't occur
- // but we might not run an optimizer that deletes them.
- if (MRI.getType(I.getOperand(0).getReg()) ==
- MRI.getType(I.getOperand(1).getReg()))
- return selectCopy(I, TII, MRI, TRI, RBI);
- return false;
+ return selectCopy(I, TII, MRI, TRI, RBI);
case TargetOpcode::G_FPEXT: {
if (MRI.getType(I.getOperand(0).getReg()) != LLT::scalar(64)) {