3 files changed, 4 insertions, 3 deletions
diff --git a/src/cuda-sim/cuda-sim.cc b/src/cuda-sim/cuda-sim.cc
index 06fb7d3..85afe73 100644
--- a/src/cuda-sim/cuda-sim.cc
+++ b/src/cuda-sim/cuda-sim.cc
@@ -495,6 +495,7 @@ void ptx_instruction::set_opcode_and_latency()
        if ( has_memory_write() ) op = STORE_OP;
        break;
    case LD_OP: op = LOAD_OP; break;
+   case LDU_OP: op = LOAD_OP; break;
    case ST_OP: op = STORE_OP; break;
    case BRA_OP: op = BRANCH_OP; break;
    case BREAKADDR_OP: op = BRANCH_OP; break;
@@ -724,7 +725,7 @@ void ptx_instruction::pre_decode()
    case WB_OPTION: cache_op = CACHE_WRITE_BACK; break;
    case WT_OPTION: cache_op = CACHE_WRITE_THROUGH; break;
    default: 
-      if( m_opcode == LD_OP ) 
+      if( m_opcode == LD_OP || m_opcode == LDU_OP ) 
          cache_op = CACHE_ALL;
       else if( m_opcode == ST_OP ) 
          cache_op = CACHE_WRITE_BACK;
diff --git a/src/cuda-sim/ptx_ir.cc b/src/cuda-sim/ptx_ir.cc
index 26c9a00..29f6ff4 100644
--- a/src/cuda-sim/ptx_ir.cc
+++ b/src/cuda-sim/ptx_ir.cc
@@ -1151,7 +1151,7 @@ ptx_instruction::ptx_instruction( int opcode,
    }
    m_scalar_type = scalar_type;
    m_space_spec = space_spec;
-   if( ( opcode == ST_OP || opcode == LD_OP ) && (space_spec == undefined_space) ) {
+   if( ( opcode == ST_OP || opcode == LD_OP || opcode == LDU_OP ) && (space_spec == undefined_space) ) {
       m_space_spec = generic_space;
    } 
    for( std::vector<operand_info>::const_iterator i=m_operands.begin(); i!=m_operands.end(); ++i) {
diff --git a/src/cuda-sim/ptx_ir.h b/src/cuda-sim/ptx_ir.h
index 09c9ade..ffd0c58 100644
--- a/src/cuda-sim/ptx_ir.h
+++ b/src/cuda-sim/ptx_ir.h
@@ -922,7 +922,7 @@ public:
    int membar_level() const { return m_membar_level; }
 
    bool has_memory_read() const {
-      if( m_opcode == LD_OP || m_opcode == TEX_OP ) 
+      if( m_opcode == LD_OP || m_opcode == LDU_OP || m_opcode == TEX_OP ) 
          return true;
       // Check PTXPlus operand type below
       // Source operands are memory operands