Subzero: Basic Block Profiler.

src/IceClFlags.cpp

Index: src/IceClFlags.cpp
diff --git a/src/IceClFlags.cpp b/src/IceClFlags.cpp
index 203b54ef03036235b78740a067518000502b8f46..ef27cd9b1a0a34747c73992754f8aee38ef8469c 100644
--- a/src/IceClFlags.cpp
+++ b/src/IceClFlags.cpp
@@ -158,6 +158,12 @@ cl::opt<std::string>
 
 cl::opt<bool> UseSandboxing("sandbox", cl::desc("Use sandboxing"));
 
+cl::opt<bool> EnableBlockProfile(

[Jim Stichnoth, 2015/06/08 23:45:31]

This should probably go between DumpStats and FunctionSections (even though
apparently name changes and neglect have made some items creep out of order).

[John, 2015/06/09 15:36:18]

Done.

+    "enable-block-profile",
+    cl::desc("If true, instruments basic blocks, and output profiling "

[Jim Stichnoth, 2015/06/08 23:45:31]

"instrument" instead of "instruments", for consistency with other help strings
(and also for self-consistency)

[John, 2015/06/09 15:36:18]

Done.

+             "information at the end of program execution."),

[Jim Stichnoth, 2015/06/08 23:45:31]

Mention that it outputs to stdout?

[John, 2015/06/09 15:36:18]

Done.

+    cl::init(false));
+
 cl::opt<std::string> VerboseFocusOn(
     "verbose-focus",
     cl::desc("Temporarily enable full verbosity for a specific function"),
@@ -270,6 +276,7 @@ void ClFlags::resetClFlags(ClFlags &OutFlags) {
   OutFlags.SubzeroTimingEnabled = false;
   OutFlags.TimeEachFunction = false;
   OutFlags.UseSandboxing = false;
+  OutFlags.EnableBlockProfile = false;

[Jim Stichnoth, 2015/06/08 23:45:31]

move this between DumpStats and FunctionSections

[John, 2015/06/09 15:36:18]

Done.

   // Enum and integer fields.
   OutFlags.Opt = Opt_m1;
   OutFlags.OutFileType = FT_Iasm;
@@ -311,6 +318,7 @@ void ClFlags::getParsedClFlags(ClFlags &OutFlags) {
   OutFlags.setDisableIRGeneration(::DisableIRGeneration);
   OutFlags.setDisableTranslation(::DisableTranslation);
   OutFlags.setDumpStats(::DumpStats);
+  OutFlags.setEnableBlockProfile(::EnableBlockProfile);
   OutFlags.setFunctionSections(::FunctionSections);
   OutFlags.setNumTranslationThreads(::NumThreads);
   OutFlags.setOptLevel(::OLevel);