commit e3bb2c9725df1b2fc94905f080dc1fa172fcb4dc
author Slava Gurevich <sgurevich@gmail.com> Mon Aug 01 12:36:38 2022 -0700
committer Copybara-Service <copybara-worker@google.com> Tue Aug 02 10:13:52 2022 -0700
tree f1f6049a192eddc286d56ad0e5837cae1c80bc24
parent 624488bcf76e0078d360dafbd4bb75276ed5c048

[LLDB][Reliability] Remove dead code.

Remove redundant code that can never execute due to preceeding logic checks in the code.

Differential Revision: https://reviews.llvm.org/D130929

GitOrigin-RevId: d735307aa2be0ebcc37ddd8d4268635dcd1e9d4e

source/API/SBFrame.cpp

diff --git a/source/API/SBFrame.cpp b/source/API/SBFrame.cpp
index ea9c2bb..4157c20 100644
--- a/source/API/SBFrame.cpp
+++ b/source/API/SBFrame.cpp
@@ -739,7 +739,7 @@
     lldb::DynamicValueType use_dynamic =
         frame->CalculateTarget()->GetPreferDynamicValue();
     const bool include_runtime_support_values =
-        target ? target->GetDisplayRuntimeSupportValues() : false;
+        target->GetDisplayRuntimeSupportValues();
 
     SBVariablesOptions options;
     options.SetIncludeArguments(arguments);

source/Plugins/ABI/AArch64/ABIMacOSX_arm64.cpp

diff --git a/source/Plugins/ABI/AArch64/ABIMacOSX_arm64.cpp b/source/Plugins/ABI/AArch64/ABIMacOSX_arm64.cpp
index 9dfc505..7b948d8 100644
--- a/source/Plugins/ABI/AArch64/ABIMacOSX_arm64.cpp
+++ b/source/Plugins/ABI/AArch64/ABIMacOSX_arm64.cpp
@@ -612,9 +612,6 @@
       ++NGRN;
     }
 
-    if (reg_info == nullptr)
-      return false;
-
     const lldb::addr_t value_addr =
         reg_ctx->ReadRegisterAsUnsigned(reg_info, LLDB_INVALID_ADDRESS);
 

source/Plugins/ABI/AArch64/ABISysV_arm64.cpp

diff --git a/source/Plugins/ABI/AArch64/ABISysV_arm64.cpp b/source/Plugins/ABI/AArch64/ABISysV_arm64.cpp
index 2896f59..a0b2d07 100644
--- a/source/Plugins/ABI/AArch64/ABISysV_arm64.cpp
+++ b/source/Plugins/ABI/AArch64/ABISysV_arm64.cpp
@@ -582,9 +582,6 @@
       ++NGRN;
     }
 
-    if (reg_info == nullptr)
-      return false;
-
     const lldb::addr_t value_addr =
         reg_ctx->ReadRegisterAsUnsigned(reg_info, LLDB_INVALID_ADDRESS);
 

source/Plugins/Language/ObjC/CoreMedia.cpp

diff --git a/source/Plugins/Language/ObjC/CoreMedia.cpp b/source/Plugins/Language/ObjC/CoreMedia.cpp
index a862da5..4b7fad0 100644
--- a/source/Plugins/Language/ObjC/CoreMedia.cpp
+++ b/source/Plugins/Language/ObjC/CoreMedia.cpp
@@ -65,9 +65,6 @@
     return true;
   }
 
-  if (timescale == 0)
-    return false;
-
   switch (timescale) {
   case 0:
     return false;

source/Target/Platform.cpp

diff --git a/source/Target/Platform.cpp b/source/Target/Platform.cpp
index b9b32bf..717dc96 100644
--- a/source/Target/Platform.cpp
+++ b/source/Target/Platform.cpp
@@ -1772,24 +1772,20 @@
   error.Clear();
 
   if (!target) {
-    ArchSpec arch;
-    if (target && target->GetArchitecture().IsValid())
-      arch = target->GetArchitecture();
-    else
-      arch = Target::GetDefaultArchitecture();
+    ArchSpec arch = Target::GetDefaultArchitecture();
 
-    const char *triple = "";
-    if (arch.IsValid())
-      triple = arch.GetTriple().getTriple().c_str();
+    const char *triple =
+        arch.IsValid() ? arch.GetTriple().getTriple().c_str() : "";
 
     TargetSP new_target_sp;
     error = debugger.GetTargetList().CreateTarget(
         debugger, "", triple, eLoadDependentsNo, nullptr, new_target_sp);
-    target = new_target_sp.get();
-  }
 
-  if (!target || error.Fail())
-    return nullptr;
+    target = new_target_sp.get();
+    if (!target || error.Fail()) {
+      return nullptr;
+    }
+  }
 
   lldb::ProcessSP process_sp =
       target->CreateProcess(debugger.GetListener(), plugin_name, nullptr, true);