From 15899eaab58e96bb7bbe7a14099674e255656a50 Mon Sep 17 00:00:00 2001 From: Valentin Churavy Date: Fri, 23 Feb 2018 14:41:20 -0500 Subject: [PATCH] Make AddrSpaceCast noops on PPC PPC as AArch64 doesn't have address-spaces so we can drop them in the backend --- lib/Target/PowerPC/PPCISelLowering.h | 5 +++++ 1 file changed, 5 insertions(+) Index: llvm-toolchain-6.0-6.0.1/lib/Target/PowerPC/PPCISelLowering.h =================================================================== --- llvm-toolchain-6.0-6.0.1.orig/lib/Target/PowerPC/PPCISelLowering.h +++ llvm-toolchain-6.0-6.0.1/lib/Target/PowerPC/PPCISelLowering.h @@ -889,6 +889,11 @@ namespace llvm { return true; } + bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const override { + // Addrspacecasts are always noops. + return true; + } + bool canReuseLoadAddress(SDValue Op, EVT MemVT, ReuseLoadInfo &RLI, SelectionDAG &DAG, ISD::LoadExtType ET = ISD::NON_EXTLOAD) const;