Author: Kazushi (Jam) Marukawa Date: 2020-12-15T23:31:19+09:00 New Revision: 697226550e369e7e736411508d7d2589a2aff764
URL: https://github.com/llvm/llvm-project/commit/697226550e369e7e736411508d7d2589a2aff764 DIFF: https://github.com/llvm/llvm-project/commit/697226550e369e7e736411508d7d2589a2aff764.diff LOG: [VE] Support FRAMEADDR Implement FRAMEADDR for VE. Add a regression test also. Reviewed By: simoll Differential Revision: https://reviews.llvm.org/D93295 Added: llvm/test/CodeGen/VE/Scalar/frameaddr.ll Modified: llvm/lib/Target/VE/VEISelLowering.cpp Removed: ################################################################################ diff --git a/llvm/lib/Target/VE/VEISelLowering.cpp b/llvm/lib/Target/VE/VEISelLowering.cpp index d15158f4f4d2..408c28205aa2 100644 --- a/llvm/lib/Target/VE/VEISelLowering.cpp +++ b/llvm/lib/Target/VE/VEISelLowering.cpp @@ -1489,6 +1489,27 @@ SDValue VETargetLowering::lowerDYNAMIC_STACKALLOC(SDValue Op, return DAG.getMergeValues(Ops, DL); } +static SDValue lowerFRAMEADDR(SDValue Op, SelectionDAG &DAG, + const VETargetLowering &TLI, + const VESubtarget *Subtarget) { + SDLoc DL(Op); + MachineFunction &MF = DAG.getMachineFunction(); + EVT PtrVT = TLI.getPointerTy(MF.getDataLayout()); + + MachineFrameInfo &MFI = MF.getFrameInfo(); + MFI.setFrameAddressIsTaken(true); + + unsigned Depth = Op.getConstantOperandVal(0); + const VERegisterInfo *RegInfo = Subtarget->getRegisterInfo(); + unsigned FrameReg = RegInfo->getFrameRegister(MF); + SDValue FrameAddr = + DAG.getCopyFromReg(DAG.getEntryNode(), DL, FrameReg, PtrVT); + while (Depth--) + FrameAddr = DAG.getLoad(Op.getValueType(), DL, DAG.getEntryNode(), + FrameAddr, MachinePointerInfo()); + return FrameAddr; +} + static SDValue getSplatValue(SDNode *N) { if (auto *BuildVec = dyn_cast<BuildVectorSDNode>(N)) { return BuildVec->getSplatValue(); @@ -1529,6 +1550,8 @@ SDValue VETargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { return lowerConstantPool(Op, DAG); case ISD::DYNAMIC_STACKALLOC: return lowerDYNAMIC_STACKALLOC(Op, DAG); + case ISD::FRAMEADDR: + return lowerFRAMEADDR(Op, DAG, *this, Subtarget); case ISD::GlobalAddress: return lowerGlobalAddress(Op, DAG); case ISD::GlobalTLSAddress: diff --git a/llvm/test/CodeGen/VE/Scalar/frameaddr.ll b/llvm/test/CodeGen/VE/Scalar/frameaddr.ll new file mode 100644 index 000000000000..117ae90b6ccc --- /dev/null +++ b/llvm/test/CodeGen/VE/Scalar/frameaddr.ll @@ -0,0 +1,24 @@ +; RUN: llc < %s -mtriple=ve | FileCheck %s + +define i8* @test1() nounwind { +; CHECK-LABEL: test1: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: or %s0, 0, %s9 +; CHECK-NEXT: or %s11, 0, %s9 +entry: + %ret = tail call i8* @llvm.frameaddress(i32 0) + ret i8* %ret +} + +define i8* @test2() nounwind { +; CHECK-LABEL: test2: +; CHECK: .LBB{{[0-9]+}}_2: +; CHECK-NEXT: ld %s0, (, %s9) +; CHECK-NEXT: ld %s0, (, %s0) +; CHECK-NEXT: or %s11, 0, %s9 +entry: + %ret = tail call i8* @llvm.frameaddress(i32 2) + ret i8* %ret +} + +declare i8* @llvm.frameaddress(i32) nounwind readnone _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
