Properly handle Mips MC relocations and lower cpload and cprestore macros to MCInsts.
Patch by Jack Carter.
llvm-svn: 144139
diff --git a/llvm/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp b/llvm/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
index 53282ab..4a815f3 100644
--- a/llvm/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
+++ b/llvm/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
@@ -13,8 +13,10 @@
#define DEBUG_TYPE "asm-printer"
#include "MipsInstPrinter.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
@@ -74,6 +76,52 @@
printAnnotation(O, Annot);
}
+static void printExpr(const MCExpr *Expr, raw_ostream &OS) {
+ int Offset = 0;
+ const MCSymbolRefExpr *SRE;
+
+ if (const MCBinaryExpr *BE = dyn_cast<MCBinaryExpr>(Expr)) {
+ SRE = dyn_cast<MCSymbolRefExpr>(BE->getLHS());
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(BE->getRHS());
+ assert(SRE && CE && "Binary expression must be sym+const.");
+ Offset = CE->getValue();
+ }
+ else if (!(SRE = dyn_cast<MCSymbolRefExpr>(Expr)))
+ assert(false && "Unexpected MCExpr type.");
+
+ MCSymbolRefExpr::VariantKind Kind = SRE->getKind();
+
+ switch (Kind) {
+ default: assert(0 && "Invalid kind!");
+ case MCSymbolRefExpr::VK_None: break;
+ case MCSymbolRefExpr::VK_Mips_GPREL: OS << "%gp_rel("; break;
+ case MCSymbolRefExpr::VK_Mips_GOT_CALL: OS << "%call16("; break;
+ case MCSymbolRefExpr::VK_Mips_GOT: OS << "%got("; break;
+ case MCSymbolRefExpr::VK_Mips_ABS_HI: OS << "%hi("; break;
+ case MCSymbolRefExpr::VK_Mips_ABS_LO: OS << "%lo("; break;
+ case MCSymbolRefExpr::VK_Mips_TLSGD: OS << "%tlsgd("; break;
+ case MCSymbolRefExpr::VK_Mips_GOTTPREL: OS << "%gottprel("; break;
+ case MCSymbolRefExpr::VK_Mips_TPREL_HI: OS << "%tprel_hi("; break;
+ case MCSymbolRefExpr::VK_Mips_TPREL_LO: OS << "%tprel_lo("; break;
+ case MCSymbolRefExpr::VK_Mips_GPOFF_HI: OS << "%hi(%neg(%gp_rel("; break;
+ case MCSymbolRefExpr::VK_Mips_GPOFF_LO: OS << "%lo(%neg(%gp_rel("; break;
+ case MCSymbolRefExpr::VK_Mips_GOT_DISP: OS << "%got_disp("; break;
+ case MCSymbolRefExpr::VK_Mips_GOT_PAGE: OS << "%got_page("; break;
+ case MCSymbolRefExpr::VK_Mips_GOT_OFST: OS << "%got_ofst("; break;
+ }
+
+ OS << SRE->getSymbol();
+
+ if (Offset) {
+ if (Offset > 0)
+ OS << '+';
+ OS << Offset;
+ }
+
+ if (Kind != MCSymbolRefExpr::VK_None)
+ OS << ')';
+}
+
void MipsInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
const MCOperand &Op = MI->getOperand(OpNo);
@@ -88,7 +136,7 @@
}
assert(Op.isExpr() && "unknown operand kind in printOperand");
- O << *Op.getExpr();
+ printExpr(Op.getExpr(), O);
}
void MipsInstPrinter::printUnsignedImm(const MCInst *MI, int opNum,