[Lldb-commits] [lldb] r186646 - Turn off fast stepping for ARM till the MC's MayAffectControlFlow gets more accurate.

[Jim Ingham]

Author: jingham
Date: Thu Jul 18 21:18:31 2013
New Revision: 186646

URL: http://llvm.org/viewvc/llvm-project?rev=186646&view=rev
Log:
Turn off fast stepping for ARM till the MC's MayAffectControlFlow gets more accurate.

rdar://problem/14488761

Modified:
    lldb/trunk/source/Target/ThreadPlanStepRange.cpp

Modified: lldb/trunk/source/Target/ThreadPlanStepRange.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Target/ThreadPlanStepRange.cpp?rev=186646&r1=186645&r2=186646&view=diff
==============================================================================
--- lldb/trunk/source/Target/ThreadPlanStepRange.cpp (original)
+++ lldb/trunk/source/Target/ThreadPlanStepRange.cpp Thu Jul 18 21:18:31 2013
@@ -54,7 +54,11 @@ ThreadPlanStepRange::ThreadPlanStepRange
     m_first_run_event (true),
     m_use_fast_step(false)
 {
-    m_use_fast_step = GetTarget().GetUseFastStepping();
+    llvm::Triple::ArchType arch_type = GetTarget().GetArchitecture().GetMachine();
+    if (arch_type == llvm::Triple::arm || arch_type == llvm::Triple::thumb)
+        m_use_fast_step = false;
+    else
+        m_use_fast_step = GetTarget().GetUseFastStepping();
     AddRange(range);
     m_stack_id = m_thread.GetStackFrameAtIndex(0)->GetStackID();
 }