This target is no longer built. The ,v files now live in the reoptimizer.

llvm-svn: 27885

1 files changed, 0 insertions, 355 deletions

diff --git a/llvm/lib/Target/SparcV9/SparcV9JITInfo.cpp b/llvm/lib/Target/SparcV9/SparcV9JITInfo.cpp
deleted file mode 100644
index 2aefab418ab..00000000000
--- a/llvm/lib/Target/SparcV9/SparcV9JITInfo.cpp
+++ /dev/null
@@ -1,355 +0,0 @@
-//===-- SparcJITInfo.cpp - Implement the JIT interfaces for SparcV9 -------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the JIT interfaces for the SparcV9 target.
-//
-//===----------------------------------------------------------------------===//
-
-#define DEBUG_TYPE "jit"
-#include "SparcV9JITInfo.h"
-#include "SparcV9Relocations.h"
-#include "llvm/CodeGen/MachineCodeEmitter.h"
-#include "llvm/Config/alloca.h"
-#include "llvm/Support/Debug.h"
-#include <iostream>
-using namespace llvm;
-
-/// JITCompilerFunction - This contains the address of the JIT function used to
-/// compile a function lazily.
-static TargetJITInfo::JITCompilerFn JITCompilerFunction;
-
-/// BUILD_SETHI/BUILD_ORI/BUILD_BA/BUILD_CALL - These macros build sparc machine
-/// instructions using lots of magic defined by the Sparc ISA.
-#define BUILD_SETHI(RD, C)   (((RD) << 25) | (4 << 22) | (C & ((1 << 22)-1)))
-#define BUILD_ORI(RS, C, RD) ((2 << 30) | (RD << 25) | (2 << 19) | (RS << 14) |\
-                              (1 << 13) | (C & ((1 << 12)-1)))
-#define BUILD_BA(DISP)       ((8 << 25) | (2 << 22) | (DISP & ((1 << 22)-1)))
-#define BUILD_CALL(OFFSET)   ((1 << 30) | (OFFSET & (1 << 30)-1))
-
-static void InsertJumpAtAddr(int64_t JumpTarget, unsigned *Addr) {
-  // If the target function is close enough to fit into the 19bit disp of
-  // BA, we should use this version, as it's much cheaper to generate.
-  int64_t BranchTarget = (JumpTarget-(intptr_t)Addr) >> 2;
-  if (BranchTarget < (1 << 19) && BranchTarget > -(1 << 19)) {
-    // ba <target>
-    Addr[0] = BUILD_BA(BranchTarget);
-
-    // nop
-    Addr[1] = 0x01000000;
-  } else {
-    enum { G0 = 0, G1 = 1, G5 = 5 };
-    // Get address to branch into %g1, using %g5 as a temporary
-    //
-    // sethi %uhi(Target), %g5   ;; get upper 22 bits of Target into %g5
-    Addr[0] = BUILD_SETHI(G5, JumpTarget >> 42);
-    // or %g5, %ulo(Target), %g5 ;; get 10 lower bits of upper word into %1
-    Addr[1] = BUILD_ORI(G5, JumpTarget >> 32, G5);
-    // sllx %g5, 32, %g5         ;; shift those 10 bits to the upper word
-    Addr[2] = 0x8B297020;
-    // sethi %hi(Target), %g1    ;; extract bits 10-31 into the dest reg
-    Addr[3] = BUILD_SETHI(G1, JumpTarget >> 10);
-    // or %g5, %g1, %g1          ;; get upper word (in %g5) into %g1
-    Addr[4] = 0x82114001;
-    // or %g1, %lo(Target), %g1  ;; get lowest 10 bits of Target into %g1
-    Addr[5] = BUILD_ORI(G1, JumpTarget, G1);
-
-    // jmpl %g1, %g0, %g0          ;; indirect branch on %g1
-    Addr[6] = 0x81C00001;
-    // nop                         ;; delay slot
-    Addr[7] = 0x01000000;
-  }
-}
-
-void SparcV9JITInfo::replaceMachineCodeForFunction (void *Old, void *New) {
-  InsertJumpAtAddr((intptr_t)New, (unsigned*)Old);
-}
-
-
-static void SaveRegisters(uint64_t DoubleFP[], uint64_t CC[],
-                          uint64_t Globals[]) {
-#if defined(__sparcv9)
-
-  __asm__ __volatile__ (// Save condition-code registers
-                        "stx %%fsr, %0;\n\t"
-                        "rd %%fprs, %1;\n\t"
-                        "rd %%ccr,  %2;\n\t"
-                        : "=m"(CC[0]), "=r"(CC[1]), "=r"(CC[2]));
-
-  __asm__ __volatile__ (// Save globals g1 and g5
-                        "stx %%g1, %0;\n\t"
-                        "stx %%g5, %0;\n\t"
-                        : "=m"(Globals[0]), "=m"(Globals[1]));
-
-  // GCC says: `asm' only allows up to thirty parameters!
-  __asm__ __volatile__ (// Save Single/Double FP registers, part 1
-                        "std  %%f0,  %0;\n\t"  "std  %%f2,  %1;\n\t"
-                        "std  %%f4,  %2;\n\t"  "std  %%f6,  %3;\n\t"
-                        "std  %%f8,  %4;\n\t"  "std  %%f10, %5;\n\t"
-                        "std  %%f12, %6;\n\t"  "std  %%f14, %7;\n\t"
-                        "std  %%f16, %8;\n\t"  "std  %%f18, %9;\n\t"
-                        "std  %%f20, %10;\n\t" "std  %%f22, %11;\n\t"
-                        "std  %%f24, %12;\n\t" "std  %%f26, %13;\n\t"
-                        "std  %%f28, %14;\n\t" "std  %%f30, %15;\n\t"
-                        : "=m"(DoubleFP[ 0]), "=m"(DoubleFP[ 1]),
-                          "=m"(DoubleFP[ 2]), "=m"(DoubleFP[ 3]),
-                          "=m"(DoubleFP[ 4]), "=m"(DoubleFP[ 5]),
-                          "=m"(DoubleFP[ 6]), "=m"(DoubleFP[ 7]),
-                          "=m"(DoubleFP[ 8]), "=m"(DoubleFP[ 9]),
-                          "=m"(DoubleFP[10]), "=m"(DoubleFP[11]),
-                          "=m"(DoubleFP[12]), "=m"(DoubleFP[13]),
-                          "=m"(DoubleFP[14]), "=m"(DoubleFP[15]));
-
-  __asm__ __volatile__ (// Save Double FP registers, part 2
-                        "std %%f32, %0;\n\t"  "std %%f34, %1;\n\t"
-                        "std %%f36, %2;\n\t"  "std %%f38, %3;\n\t"
-                        "std %%f40, %4;\n\t"  "std %%f42, %5;\n\t"
-                        "std %%f44, %6;\n\t"  "std %%f46, %7;\n\t"
-                        "std %%f48, %8;\n\t"  "std %%f50, %9;\n\t"
-                        "std %%f52, %10;\n\t" "std %%f54, %11;\n\t"
-                        "std %%f56, %12;\n\t" "std %%f58, %13;\n\t"
-                        "std %%f60, %14;\n\t" "std %%f62, %15;\n\t"
-                        : "=m"(DoubleFP[16]), "=m"(DoubleFP[17]),
-                          "=m"(DoubleFP[18]), "=m"(DoubleFP[19]),
-                          "=m"(DoubleFP[20]), "=m"(DoubleFP[21]),
-                          "=m"(DoubleFP[22]), "=m"(DoubleFP[23]),
-                          "=m"(DoubleFP[24]), "=m"(DoubleFP[25]),
-                          "=m"(DoubleFP[26]), "=m"(DoubleFP[27]),
-                          "=m"(DoubleFP[28]), "=m"(DoubleFP[29]),
-                          "=m"(DoubleFP[30]), "=m"(DoubleFP[31]));
-#else
-  std::cerr << "ERROR: RUNNING CODE THAT ONLY WORKS ON A SPARCV9 HOST!\n";
-  abort();
-#endif
-}
-
-static void RestoreRegisters(uint64_t DoubleFP[], uint64_t CC[],
-                             uint64_t Globals[]) {
-#if defined(__sparcv9)
-
-  __asm__ __volatile__ (// Restore condition-code registers
-                        "ldx %0,    %%fsr;\n\t"
-                        "wr  %1, 0, %%fprs;\n\t"
-                        "wr  %2, 0, %%ccr;\n\t"
-                        :: "m"(CC[0]), "r"(CC[1]), "r"(CC[2]));
-
-  __asm__ __volatile__ (// Restore globals g1 and g5
-                        "ldx %0, %%g1;\n\t"
-                        "ldx %0, %%g5;\n\t"
-                        :: "m"(Globals[0]), "m"(Globals[1]));
-
-  // GCC says: `asm' only allows up to thirty parameters!
-  __asm__ __volatile__ (// Restore Single/Double FP registers, part 1
-                        "ldd %0,  %%f0;\n\t"   "ldd %1, %%f2;\n\t"
-                        "ldd %2,  %%f4;\n\t"   "ldd %3, %%f6;\n\t"
-                        "ldd %4,  %%f8;\n\t"   "ldd %5, %%f10;\n\t"
-                        "ldd %6,  %%f12;\n\t"  "ldd %7, %%f14;\n\t"
-                        "ldd %8,  %%f16;\n\t"  "ldd %9, %%f18;\n\t"
-                        "ldd %10, %%f20;\n\t" "ldd %11, %%f22;\n\t"
-                        "ldd %12, %%f24;\n\t" "ldd %13, %%f26;\n\t"
-                        "ldd %14, %%f28;\n\t" "ldd %15, %%f30;\n\t"
-                        :: "m"(DoubleFP[0]), "m"(DoubleFP[1]),
-                           "m"(DoubleFP[2]), "m"(DoubleFP[3]),
-                           "m"(DoubleFP[4]), "m"(DoubleFP[5]),
-                           "m"(DoubleFP[6]), "m"(DoubleFP[7]),
-                           "m"(DoubleFP[8]), "m"(DoubleFP[9]),
-                           "m"(DoubleFP[10]), "m"(DoubleFP[11]),
-                           "m"(DoubleFP[12]), "m"(DoubleFP[13]),
-                           "m"(DoubleFP[14]), "m"(DoubleFP[15]));
-
-  __asm__ __volatile__ (// Restore Double FP registers, part 2
-                        "ldd %0, %%f32;\n\t"  "ldd %1, %%f34;\n\t"
-                        "ldd %2, %%f36;\n\t"  "ldd %3, %%f38;\n\t"
-                        "ldd %4, %%f40;\n\t"  "ldd %5, %%f42;\n\t"
-                        "ldd %6, %%f44;\n\t"  "ldd %7, %%f46;\n\t"
-                        "ldd %8, %%f48;\n\t"  "ldd %9, %%f50;\n\t"
-                        "ldd %10, %%f52;\n\t" "ldd %11, %%f54;\n\t"
-                        "ldd %12, %%f56;\n\t" "ldd %13, %%f58;\n\t"
-                        "ldd %14, %%f60;\n\t" "ldd %15, %%f62;\n\t"
-                        :: "m"(DoubleFP[16]), "m"(DoubleFP[17]),
-                           "m"(DoubleFP[18]), "m"(DoubleFP[19]),
-                           "m"(DoubleFP[20]), "m"(DoubleFP[21]),
-                           "m"(DoubleFP[22]), "m"(DoubleFP[23]),
-                           "m"(DoubleFP[24]), "m"(DoubleFP[25]),
-                           "m"(DoubleFP[26]), "m"(DoubleFP[27]),
-                           "m"(DoubleFP[28]), "m"(DoubleFP[29]),
-                           "m"(DoubleFP[30]), "m"(DoubleFP[31]));
-#else
-  std::cerr << "ERROR: RUNNING CODE THAT ONLY WORKS ON A SPARCV9 HOST!\n";
-  abort();
-#endif
-}
-
-
-static void CompilationCallback() {
-  // Local space to save the registers
-  uint64_t DoubleFP[32];
-  uint64_t CC[3];
-  uint64_t Globals[2];
-
-  SaveRegisters(DoubleFP, CC, Globals);
-
-  unsigned *CameFrom = (unsigned*)__builtin_return_address(0);
-  unsigned *CameFrom1 = (unsigned*)__builtin_return_address(1);
-
-  int64_t Target = (intptr_t)JITCompilerFunction(CameFrom);
-
-  DEBUG(std::cerr << "In callback! Addr=" << (void*)CameFrom << "\n");
-
-  // If we can rewrite the ORIGINAL caller, we eliminate the whole need for a
-  // trampoline function stub!!
-  unsigned OrigCallInst = *CameFrom1;
-  int64_t OrigTarget = (Target-(intptr_t)CameFrom1) >> 2;
-  if ((OrigCallInst >> 30) == 1 &&
-      (OrigTarget <= (1 << 30) && OrigTarget >= -(1 << 30))) {
-    // The original call instruction was CALL <immed>, which means we can
-    // overwrite it directly, since the offset will fit into 30 bits
-    *CameFrom1 = BUILD_CALL(OrigTarget);
-    //++OverwrittenCalls;
-  } else {
-    //++UnmodifiedCalls;
-  }
-
-  // Rewrite the call target so that we don't fault every time we execute it.
-  //
-  unsigned OrigStubCallInst = *CameFrom;
-
-  // Subtract enough to overwrite up to the 'save' instruction
-  // This depends on whether we made a short call (1 instruction) or the
-  // farCall (7 instructions)
-  int Offset = ((OrigStubCallInst >> 30) == 1) ? 1 : 7;
-  unsigned *CodeBegin = CameFrom - Offset;
-
-  // FIXME: __builtin_frame_address doesn't work if frame pointer elimination
-  // has been performed.  Having a variable sized alloca disables frame pointer
-  // elimination currently, even if it's dead.  This is a gross hack.
-  alloca(42+Offset);
-
-  // Make sure that what we're about to overwrite is indeed "save".
-  if (*CodeBegin != 0x9DE3BF40) {
-    std::cerr << "About to overwrite smthg not a save instr!";
-    abort();
-  }
-
-  // Overwrite it
-  InsertJumpAtAddr(Target, CodeBegin);
-
-  // Flush the I-Cache: FLUSH clears out a doubleword at a given address
-  // Self-modifying code MUST clear out the I-Cache to be portable
-#if defined(__sparcv9)
-  for (int i = -Offset*4, e = 32-((int64_t)Offset*4); i < e; i += 8)
-    __asm__ __volatile__ ("flush %%i7 + %0" : : "r" (i));
-#endif
-
-  // Change the return address to re-execute the restore, then the jump.
-  DEBUG(std::cerr << "Callback returning to: 0x"
-                  << std::hex << (CameFrom-Offset*4-12) << "\n");
-#if defined(__sparcv9)
-  __asm__ __volatile__ ("sub %%i7, %0, %%i7" : : "r" (Offset*4+12));
-#endif
-
-  RestoreRegisters(DoubleFP, CC, Globals);
-}
-
-
-/// emitStubForFunction - This method is used by the JIT when it needs to emit
-/// the address of a function for a function whose code has not yet been
-/// generated.  In order to do this, it generates a stub which jumps to the lazy
-/// function compiler, which will eventually get fixed to call the function
-/// directly.
-///
-void *SparcV9JITInfo::emitFunctionStub(void *Fn, MachineCodeEmitter &MCE) {
-  if (Fn != CompilationCallback) {
-    // If this is just a call to an external function,
-    MCE.startFunctionStub(4*8);
-    unsigned *Stub = (unsigned*)(intptr_t)MCE.getCurrentPCValue();
-    for (unsigned i = 0; i != 8; ++i)
-      MCE.emitWord(0);
-    InsertJumpAtAddr((intptr_t)Fn, Stub);
-    return MCE.finishFunctionStub(0); // 1 instr past the restore
-  }
-
-  MCE.startFunctionStub(44);
-  MCE.emitWord(0x81e82000); // restore %g0, 0, %g0
-  MCE.emitWord(0x9DE3BF40); // save %sp, -192, %sp
-
-  int64_t CurrPC = MCE.getCurrentPCValue();
-  int64_t Addr = (intptr_t)Fn;
-  int64_t CallTarget = (Addr-CurrPC) >> 2;
-  if (CallTarget < (1 << 29) && CallTarget > -(1 << 29)) {
-    // call CallTarget
-    MCE.emitWord((0x01 << 30) | CallTarget);
-  } else {
-    enum {G5 = 5, G1 = 1 };
-    // Otherwise, we need to emit a sequence of instructions to call a distant
-    // function.  We use %g5 as a temporary, and compute the value into %g1
-
-    // sethi %uhi(Target), %g5   ;; get upper 22 bits of Target into %g5
-    MCE.emitWord(BUILD_SETHI(G5, Addr >> 42));
-    // or %g5, %ulo(Target), %g5 ;; get 10 lower bits of upper word into %1
-    MCE.emitWord(BUILD_ORI(G5, Addr >> 32, G5));
-    // sllx %g5, 32, %g5         ;; shift those 10 bits to the upper word
-    MCE.emitWord(0x8B297020);
-    // sethi %hi(Target), %g1    ;; extract bits 10-31 into the dest reg
-    MCE.emitWord(BUILD_SETHI(G1, Addr >> 10));
-    // or %g5, %g1, %g1          ;; get upper word (in %g5) into %g1
-    MCE.emitWord(0x82114001);
-    // or %g1, %lo(Target), %g1  ;; get lowest 10 bits of Target into %g1
-    MCE.emitWord(BUILD_ORI(G1, Addr, G1));
-
-    // call %g1                  ;; indirect call on %g1
-    MCE.emitWord(0x9FC04000);
-  }
-
-  // nop                         ;; call delay slot
-  MCE.emitWord(0x1000000);
-
-  // FIXME: Should have a restore and return!
-
-  MCE.emitWord(0xDEADBEEF);    // marker so that we know it's really a stub
-  return (char*)MCE.finishFunctionStub(0)+4; // 1 instr past the restore
-}
-
-
-
-TargetJITInfo::LazyResolverFn
-SparcV9JITInfo::getLazyResolverFunction(JITCompilerFn F) {
-  JITCompilerFunction = F;
-  return CompilationCallback;
-}
-
-void SparcV9JITInfo::relocate(void *Function, MachineRelocation *MR,
-                              unsigned NumRelocs, unsigned char* GOTBase) {
-  for (unsigned i = 0; i != NumRelocs; ++i, ++MR) {
-    unsigned *RelocPos = (unsigned*)Function + MR->getMachineCodeOffset()/4;
-    intptr_t ResultPtr = (intptr_t)MR->getResultPointer();
-    switch ((V9::RelocationType)MR->getRelocationType()) {
-    default: assert(0 && "Unknown relocation type!");
-    case V9::reloc_pcrel_call:
-      ResultPtr = (ResultPtr-(intptr_t)RelocPos) >> 2;   // PC relative.
-      assert((ResultPtr < (1 << 29) && ResultPtr > -(1 << 29)) &&
-             "reloc_pcrel_call is out of range!");
-      // The high two bits of the call are always set to 01.
-      *RelocPos = (1 << 30) | (ResultPtr & ((1 << 30)-1)) ;
-      break;
-    case V9::reloc_sethi_hh:
-    case V9::reloc_sethi_lm:
-      ResultPtr >>= (MR->getRelocationType() == V9::reloc_sethi_hh ? 32 : 0);
-      ResultPtr >>= 10;
-      ResultPtr &= (1 << 22)-1;
-      *RelocPos |= (unsigned)ResultPtr;
-      break;
-    case V9::reloc_or_hm:
-    case V9::reloc_or_lo:
-      ResultPtr >>= (MR->getRelocationType() == V9::reloc_or_hm ? 32 : 0);
-      ResultPtr &= (1 << 12)-1;
-      *RelocPos |= (unsigned)ResultPtr;
-      break;
-    }
-  }
-}