Correctly handle a one-word struct passed byval on x86_64.

[oota-llvm.git] / lib / Target / PowerPC / PPCAsmBackend.cpp

diff --git a/lib/Target/PowerPC/PPCAsmBackend.cpp b/lib/Target/PowerPC/PPCAsmBackend.cpp
index 3ee8e8e78997bfb602edf5c811a7356f609a3fcc..f562a3f4f9e843b3c901f98e43f0ec23a14f7f43 100644 (file)
--- a/lib/Target/PowerPC/PPCAsmBackend.cpp
+++ b/lib/Target/PowerPC/PPCAsmBackend.cpp
@@ -10,79 +10,79 @@
 #include "llvm/Target/TargetAsmBackend.h"
 #include "PPC.h"
 #include "PPCFixupKinds.h"
+#include "llvm/MC/MCMachObjectWriter.h"
 #include "llvm/MC/MCSectionMachO.h"
-#include "llvm/MC/MCObjectFormat.h"
 #include "llvm/MC/MCObjectWriter.h"
 #include "llvm/Object/MachOFormat.h"
 #include "llvm/Target/TargetRegistry.h"
 using namespace llvm;
 
 namespace {
-  class PPCAsmBackend : public TargetAsmBackend {
-  const Target &TheTarget;
-  public:
-    PPCAsmBackend(const Target &T) : TargetAsmBackend(), TheTarget(T) {}
-  
-    unsigned getNumFixupKinds() const { return PPC::NumTargetFixupKinds; }
+class PPCMachObjectWriter : public MCMachObjectTargetWriter {
+public:
+  PPCMachObjectWriter(bool Is64Bit, uint32_t CPUType,
+                      uint32_t CPUSubtype)
+    : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype) {}
+};
 
-    const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const {
-      const static MCFixupKindInfo Infos[PPC::NumTargetFixupKinds] = {
-        // name                    offset  bits  flags
-        { "fixup_ppc_br24",        6,      24,   MCFixupKindInfo::FKF_IsPCRel },
-        { "fixup_ppc_brcond14",    16,     14,   MCFixupKindInfo::FKF_IsPCRel },
-        { "fixup_ppc_lo16",        16,     16,   0 },
-        { "fixup_ppc_ha16",        16,     16,   0 },
-        { "fixup_ppc_lo14",        16,     14,   0 }
-      };
-    
-      if (Kind < FirstTargetFixupKind)
-        return TargetAsmBackend::getFixupKindInfo(Kind);
-    
-      assert(unsigned(Kind - FirstTargetFixupKind) < getNumFixupKinds() &&
-             "Invalid kind!");
-      return Infos[Kind - FirstTargetFixupKind];
-    }
-    
-    bool MayNeedRelaxation(const MCInst &Inst) const {
-      // FIXME.
-      return false;
-    }
-    
-    void RelaxInstruction(const MCInst &Inst, MCInst &Res) const {
-      // FIXME.
-      assert(0 && "RelaxInstruction() unimplemented");
-    }
-    
-    bool WriteNopData(uint64_t Count, MCObjectWriter *OW) const {
-      // FIXME: Zero fill for now. That's not right, but at least will get the
-      // section size right.
-      for (uint64_t i = 0; i != Count; ++i)
-        OW->Write8(0);
-      return true;
-    }      
-    
-    unsigned getPointerSize() const {
-      StringRef Name = TheTarget.getName();
-      if (Name == "ppc64") return 8;
-      assert(Name == "ppc32" && "Unknown target name!");
-      return 4;
-    }
-  };
+class PPCAsmBackend : public TargetAsmBackend {
+const Target &TheTarget;
+public:
+  PPCAsmBackend(const Target &T) : TargetAsmBackend(), TheTarget(T) {}
+
+  unsigned getNumFixupKinds() const { return PPC::NumTargetFixupKinds; }
+
+  const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const {
+    const static MCFixupKindInfo Infos[PPC::NumTargetFixupKinds] = {
+      // name                    offset  bits  flags
+      { "fixup_ppc_br24",        6,      24,   MCFixupKindInfo::FKF_IsPCRel },
+      { "fixup_ppc_brcond14",    16,     14,   MCFixupKindInfo::FKF_IsPCRel },
+      { "fixup_ppc_lo16",        16,     16,   0 },
+      { "fixup_ppc_ha16",        16,     16,   0 },
+      { "fixup_ppc_lo14",        16,     14,   0 }
+    };
+  
+    if (Kind < FirstTargetFixupKind)
+      return TargetAsmBackend::getFixupKindInfo(Kind);
+  
+    assert(unsigned(Kind - FirstTargetFixupKind) < getNumFixupKinds() &&
+           "Invalid kind!");
+    return Infos[Kind - FirstTargetFixupKind];
+  }
+  
+  bool MayNeedRelaxation(const MCInst &Inst) const {
+    // FIXME.
+    return false;
+  }
+  
+  void RelaxInstruction(const MCInst &Inst, MCInst &Res) const {
+    // FIXME.
+    assert(0 && "RelaxInstruction() unimplemented");
+  }
+  
+  bool WriteNopData(uint64_t Count, MCObjectWriter *OW) const {
+    // FIXME: Zero fill for now. That's not right, but at least will get the
+    // section size right.
+    for (uint64_t i = 0; i != Count; ++i)
+      OW->Write8(0);
+    return true;
+  }      
+  
+  unsigned getPointerSize() const {
+    StringRef Name = TheTarget.getName();
+    if (Name == "ppc64") return 8;
+    assert(Name == "ppc32" && "Unknown target name!");
+    return 4;
+  }
+};
 } // end anonymous namespace
 
 
 // FIXME: This should be in a separate file.
 namespace {
   class DarwinPPCAsmBackend : public PPCAsmBackend {
-    MCMachOObjectFormat Format;
   public:
-    DarwinPPCAsmBackend(const Target &T) : PPCAsmBackend(T) {
-      HasScatteredSymbols = true;
-    }
-    
-    virtual const MCObjectFormat &getObjectFormat() const {
-      return Format;
-    }
+    DarwinPPCAsmBackend(const Target &T) : PPCAsmBackend(T) { }
     
     void ApplyFixup(const MCFixup &Fixup, char *Data, unsigned DataSize,
                     uint64_t Value) const {
@@ -91,11 +91,12 @@ namespace {
     
     MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
       bool is64 = getPointerSize() == 8;
-      return createMachObjectWriter(OS, /*Is64Bit=*/is64,
-                                    (is64 ? object::mach::CTM_PowerPC64 :
-                                     object::mach::CTM_PowerPC),
-                                    object::mach::CSPPC_ALL,
-                                    /*IsLittleEndian=*/false);
+      return createMachObjectWriter(new PPCMachObjectWriter(
+                                      /*Is64Bit=*/is64,
+                                      (is64 ? object::mach::CTM_PowerPC64 :
+                                       object::mach::CTM_PowerPC),
+                                      object::mach::CSPPC_ALL),
+                                    OS, /*IsLittleEndian=*/false);
     }
     
     virtual bool doesSectionRequireSymbols(const MCSection &Section) const {
@@ -109,10 +110,8 @@ namespace {
 
 TargetAsmBackend *llvm::createPPCAsmBackend(const Target &T,
                                             const std::string &TT) {
-  switch (Triple(TT).getOS()) {
-  case Triple::Darwin:
+  if (Triple(TT).isOSDarwin())
     return new DarwinPPCAsmBackend(T);
-  default:
-    return 0;
-  }
+
+  return 0;
 }