[llvm-commits] [llvm] r166234 - /llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp

[Kevin Enderby]

Author: enderby
Date: Thu Oct 18 16:49:18 2012
New Revision: 166234

URL: http://llvm.org/viewvc/llvm-project?rev=166234&view=rev
Log:
Fix a bug where a 32-bit address with the high bit does not get symbolicated
because the value is incorrectly being signed extended when passed to
SymbolLookUp().

Modified:
    llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp

Modified: llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp?rev=166234&r1=166233&r2=166234&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp (original)
+++ llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp Thu Oct 18 16:49:18 2012
@@ -525,8 +525,9 @@
     else
        ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
     const char *ReferenceName;
-    const char *Name = SymbolLookUp(DisInfo, Value, &ReferenceType, Address,
-                                    &ReferenceName);
+    uint64_t SymbolValue = 0x00000000ffffffffULL & Value;
+    const char *Name = SymbolLookUp(DisInfo, SymbolValue, &ReferenceType,
+                                    Address, &ReferenceName);
     if (Name) {
       SymbolicOp.AddSymbol.Name = Name;
       SymbolicOp.AddSymbol.Present = true;