Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 155 deletions

diff --git a/gnu/llvm/lib/Target/PowerPC/PPCTOCRegDeps.cpp b/gnu/llvm/lib/Target/PowerPC/PPCTOCRegDeps.cpp
deleted file mode 100644
index 17345b6ca8d..00000000000
--- a/gnu/llvm/lib/Target/PowerPC/PPCTOCRegDeps.cpp
+++ /dev/null
@@ -1,155 +0,0 @@
-//===-- PPCTOCRegDeps.cpp - Add Extra TOC Register Dependencies -----------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// When resolving an address using the ELF ABI TOC pointer, two relocations are
-// generally required: one for the high part and one for the low part. Only
-// the high part generally explicitly depends on r2 (the TOC pointer). And, so,
-// we might produce code like this:
-//
-// .Ltmp526:
-//         addis 3, 2, .LC12@toc@ha
-// .Ltmp1628:
-//         std 2, 40(1)
-//         ld 5, 0(27)
-//         ld 2, 8(27)
-//         ld 11, 16(27)
-//         ld 3, .LC12@toc@l(3)
-//         rldicl 4, 4, 0, 32
-//         mtctr 5
-//         bctrl
-//         ld 2, 40(1)
-//
-// And there is nothing wrong with this code, as such, but there is a linker bug
-// in binutils (https://sourceware.org/bugzilla/show_bug.cgi?id=18414) that will
-// misoptimize this code sequence to this:
-//         nop
-//         std     r2,40(r1)
-//         ld      r5,0(r27)
-//         ld      r2,8(r27)
-//         ld      r11,16(r27)
-//         ld      r3,-32472(r2)
-//         clrldi  r4,r4,32
-//         mtctr   r5
-//         bctrl
-//         ld      r2,40(r1)
-// because the linker does not know (and does not check) that the value in r2
-// changed in between the instruction using the .LC12@toc@ha (TOC-relative)
-// relocation and the instruction using the .LC12@toc@l(3) relocation.
-// Because it finds these instructions using the relocations (and not by
-// scanning the instructions), it has been asserted that there is no good way
-// to detect the change of r2 in between. As a result, this bug may never be
-// fixed (i.e. it may become part of the definition of the ABI). GCC was
-// updated to add extra dependencies on r2 to instructions using the @toc@l
-// relocations to avoid this problem, and we'll do the same here.
-//
-// This is done as a separate pass because:
-//  1. These extra r2 dependencies are not really properties of the
-//     instructions, but rather due to a linker bug, and maybe one day we'll be
-//     able to get rid of them when targeting linkers without this bug (and,
-//     thus, keeping the logic centralized here will make that
-//     straightforward).
-//  2. There are ISel-level peephole optimizations that propagate the @toc@l
-//     relocations to some user instructions, and so the exta dependencies do
-//     not apply only to a fixed set of instructions (without undesirable
-//     definition replication).
-//
-//===----------------------------------------------------------------------===//
-
-#include "MCTargetDesc/PPCPredicates.h"
-#include "PPC.h"
-#include "PPCInstrBuilder.h"
-#include "PPCInstrInfo.h"
-#include "PPCMachineFunctionInfo.h"
-#include "PPCTargetMachine.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/CodeGen/MachineFrameInfo.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/TargetRegistry.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace llvm;
-
-#define DEBUG_TYPE "ppc-toc-reg-deps"
-
-namespace llvm {
-  void initializePPCTOCRegDepsPass(PassRegistry&);
-}
-
-namespace {
-  // PPCTOCRegDeps pass - For simple functions without epilogue code, move
-  // returns up, and create conditional returns, to avoid unnecessary
-  // branch-to-blr sequences.
-  struct PPCTOCRegDeps : public MachineFunctionPass {
-    static char ID;
-    PPCTOCRegDeps() : MachineFunctionPass(ID) {
-      initializePPCTOCRegDepsPass(*PassRegistry::getPassRegistry());
-    }
-
-protected:
-    bool hasTOCLoReloc(const MachineInstr &MI) {
-      if (MI.getOpcode() == PPC::LDtocL ||
-          MI.getOpcode() == PPC::ADDItocL)
-        return true;
-
-      for (const MachineOperand &MO : MI.operands()) {
-        if ((MO.getTargetFlags() & PPCII::MO_ACCESS_MASK) == PPCII::MO_TOC_LO)
-          return true;
-      }
-
-      return false;
-    }
-
-    bool processBlock(MachineBasicBlock &MBB) {
-      bool Changed = false;
-
-      for (auto &MI : MBB) {
-        if (!hasTOCLoReloc(MI))
-          continue;
-
-        MI.addOperand(MachineOperand::CreateReg(PPC::X2,
-                                                false  /*IsDef*/,
-                                                true  /*IsImp*/));
-        Changed = true;
-      }
-
-      return Changed;
-    }
-
-public:
-    bool runOnMachineFunction(MachineFunction &MF) override {
-      bool Changed = false;
-
-      for (MachineFunction::iterator I = MF.begin(); I != MF.end();) {
-        MachineBasicBlock &B = *I++;
-        if (processBlock(B))
-          Changed = true;
-      }
-
-      return Changed;
-    }
-
-    void getAnalysisUsage(AnalysisUsage &AU) const override {
-      MachineFunctionPass::getAnalysisUsage(AU);
-    }
-  };
-}
-
-INITIALIZE_PASS(PPCTOCRegDeps, DEBUG_TYPE,
-                "PowerPC TOC Register Dependencies", false, false)
-
-char PPCTOCRegDeps::ID = 0;
-FunctionPass*
-llvm::createPPCTOCRegDepsPass() { return new PPCTOCRegDeps(); }
-