[llvm-exegesis] Fix function return generation so it doesn't return register 0
When fillMachineFunction generates a return on targets without a return opcode
(such as AArch64) it should pass an empty set of registers as the return
registers, not 0 which means register number zero.
Differential Revision: https://reviews.llvm.org/D53074
llvm-svn: 344139
diff --git a/llvm/tools/llvm-exegesis/lib/Assembler.cpp b/llvm/tools/llvm-exegesis/lib/Assembler.cpp
index cb6e9e1..2b67682 100644
--- a/llvm/tools/llvm-exegesis/lib/Assembler.cpp
+++ b/llvm/tools/llvm-exegesis/lib/Assembler.cpp
@@ -121,7 +121,7 @@
} else {
llvm::MachineIRBuilder MIB(MF);
MIB.setMBB(*MBB);
- MF.getSubtarget().getCallLowering()->lowerReturn(MIB, nullptr, 0);
+ MF.getSubtarget().getCallLowering()->lowerReturn(MIB, nullptr, {});
}
}