InstrProf: Use LLVM's -instrprof pass for profiling

The logic for lowering profiling counters has been moved to an LLVM
pass. Emit the intrinsics rather than duplicating the whole pass in
clang.

llvm-svn: 223683

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index 41f21312bc2..97485b73927 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -366,6 +366,12 @@ void EmitAssemblyHelper::CreatePasses() {
       MPM->add(createStripSymbolsPass(true));
   }
 
+  if (CodeGenOpts.ProfileInstrGenerate) {
+    InstrProfOptions Options;
+    Options.NoRedZone = CodeGenOpts.DisableRedZone;
+    MPM->add(createInstrProfilingPass(Options));
+  }
+
   PMBuilder.populateModulePassManager(*MPM);
 }