[PATCH] D5626: [mips] Make the MipsAsmParser capable of knowing whether PIC mode is enabled or not.

[Daniel Sanders via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL245291: [mips] Make the MipsAsmParser capable of knowing whether PIC mode is enabled… (authored by dsanders).

Changed prior to commit:
  http://reviews.llvm.org/D5626?vs=16098&id=32404#toc

Repository:
  rL LLVM

http://reviews.llvm.org/D5626

Files:
  llvm/trunk/lib/Target/Mips/AsmParser/MipsAsmParser.cpp

Index: llvm/trunk/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
===================================================================
--- llvm/trunk/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
+++ llvm/trunk/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
@@ -11,6 +11,7 @@
 #include "MCTargetDesc/MipsMCExpr.h"
 #include "MCTargetDesc/MipsMCTargetDesc.h"
 #include "MipsRegisterInfo.h"
+#include "MipsTargetObjectFile.h"
 #include "MipsTargetStreamer.h"
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/SmallVector.h"
@@ -114,6 +115,7 @@
                        // selected. This usually happens after an '.end func'
                        // directive.
   bool IsLittleEndian;
+  bool IsPicEnabled;
 
   // Print a warning along with its fix-it message at the given range.
   void printWarningWithFixIt(const Twine &Msg, const Twine &FixMsg,
@@ -406,6 +408,9 @@
 
     CurrentFn = nullptr;
 
+    IsPicEnabled =
+        (getContext().getObjectFileInfo()->getRelocM() == Reloc::PIC_);
+
     Triple TheTriple(sti.getTargetTriple());
     if ((TheTriple.getArch() == Triple::mips) ||
         (TheTriple.getArch() == Triple::mips64))
@@ -475,6 +480,10 @@
     return (STI.getFeatureBits()[Mips::FeatureCnMips]);
   }
 
+  bool inPicMode() {
+    return IsPicEnabled;
+  }
+
   bool inMips16Mode() const {
     return STI.getFeatureBits()[Mips::FeatureMips16];
   }
@@ -4714,6 +4723,9 @@
   StringRef Option = Tok.getIdentifier();
 
   if (Option == "pic0") {
+    // MipsAsmParser needs to know if the current PIC mode changes.
+    IsPicEnabled = false;
+
     getTargetStreamer().emitDirectiveOptionPic0();
     Parser.Lex();
     if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {
@@ -4725,6 +4737,9 @@
   }
 
   if (Option == "pic2") {
+    // MipsAsmParser needs to know if the current PIC mode changes.
+    IsPicEnabled = true;
+
     getTargetStreamer().emitDirectiveOptionPic2();
     Parser.Lex();
     if (Parser.getTok().isNot(AsmToken::EndOfStatement)) {


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