Patch up omissions in DebugLoc propagation.

[oota-llvm.git] / lib / Target / Mips / MipsTargetAsmInfo.cpp

diff --git a/lib/Target/Mips/MipsTargetAsmInfo.cpp b/lib/Target/Mips/MipsTargetAsmInfo.cpp
index 2d3eff1c910840706d7ed2f3a6636b1da4807993..7566f41eaf62fd824a11fff543c74628d195a156 100644 (file)
--- a/lib/Target/Mips/MipsTargetAsmInfo.cpp
+++ b/lib/Target/Mips/MipsTargetAsmInfo.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Bruno Cardoso Lopes and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -13,26 +13,86 @@
 
 #include "MipsTargetAsmInfo.h"
 #include "MipsTargetMachine.h"
+#include "llvm/GlobalVariable.h"
 
 using namespace llvm;
 
-MipsTargetAsmInfo::MipsTargetAsmInfo(const MipsTargetMachine &TM) {
-  AlignmentIsInBytes   = false;
-  Data16bitsDirective  = "\t.half\t";
-  Data32bitsDirective  = "\t.word\t";
-  PrivateGlobalPrefix  = "$";
-  JumpTableDataSection = "\t.rdata";
-  CommentString        = "#";
-  ReadOnlySection      = "\t.rdata";
-  ZeroDirective        = "\t.space\t";
-  BSSSection           = "\t.section\t.bss";
-  GlobalDirective      = "\t.globl\t";
-  LCOMMDirective       = "\t.lcomm\t";
-
-  if (TM.getRelocationModel() == Reloc::Static)
+MipsTargetAsmInfo::MipsTargetAsmInfo(const MipsTargetMachine &TM):
+  ELFTargetAsmInfo(TM) {
+
+  Subtarget = &TM.getSubtarget<MipsSubtarget>();
+
+  AlignmentIsInBytes          = false;
+  COMMDirectiveTakesAlignment = true;
+  Data16bitsDirective         = "\t.half\t";
+  Data32bitsDirective         = "\t.word\t";
+  Data64bitsDirective         = NULL;
+  PrivateGlobalPrefix         = "$";
+  JumpTableDataSection        = "\t.rdata";
+  CommentString               = "#";
+  ZeroDirective               = "\t.space\t";
+  BSSSection                  = "\t.section\t.bss";
+  CStringSection              = ".rodata.str";
+
+  if (!Subtarget->hasABICall()) {
     JumpTableDirective = "\t.word\t";
-  else    
+    SmallDataSection = getNamedSection("\t.sdata", SectionFlags::Writeable);
+    SmallBSSSection = getNamedSection("\t.sbss",
+                                      SectionFlags::Writeable |
+                                      SectionFlags::BSS);
+  } else
     JumpTableDirective = "\t.gpword\t";
 
-  COMMDirectiveTakesAlignment = true;
+}
+
+unsigned MipsTargetAsmInfo::
+SectionFlagsForGlobal(const GlobalValue *GV, const char* Name) const {
+  unsigned Flags = ELFTargetAsmInfo::SectionFlagsForGlobal(GV, Name);
+  // Mask out Small Section flag bit, Mips doesnt support 's' section symbol
+  // for its small sections.
+  return (Flags & (~SectionFlags::Small));
+}
+
+SectionKind::Kind MipsTargetAsmInfo::
+SectionKindForGlobal(const GlobalValue *GV) const {
+  SectionKind::Kind K = ELFTargetAsmInfo::SectionKindForGlobal(GV);
+
+  if (Subtarget->hasABICall())
+    return K;
+
+  if (K != SectionKind::Data && K != SectionKind::BSS &&
+      K != SectionKind::RODataMergeConst)
+    return K;
+
+  if (isa<GlobalVariable>(GV)) {
+    const TargetData *TD = TM.getTargetData();
+    unsigned Size = TD->getTypePaddedSize(GV->getType()->getElementType());
+    unsigned Threshold = Subtarget->getSSectionThreshold();
+
+    if (Size > 0 && Size <= Threshold) {
+      if (K == SectionKind::BSS)
+        return SectionKind::SmallBSS;
+      else
+        return SectionKind::SmallData;
+    }
+  }
+
+  return K;
+}
+
+const Section* MipsTargetAsmInfo::
+SelectSectionForGlobal(const GlobalValue *GV) const {
+  SectionKind::Kind K = SectionKindForGlobal(GV);
+  const GlobalVariable *GVA = dyn_cast<GlobalVariable>(GV);
+
+  if (GVA && (!GVA->mayBeOverridden()))
+    switch (K) {
+      case SectionKind::SmallData:
+        return getSmallDataSection();
+      case SectionKind::SmallBSS:
+        return getSmallBSSSection();
+      default: break;
+    }
+
+  return ELFTargetAsmInfo::SelectSectionForGlobal(GV);
 }