rustc_llvm: rustc_trans: Thread the PGO config down to the pass manager builder.

Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>

1 files changed, 11 insertions, 1 deletions

diff --git a/src/rustllvm/PassWrapper.cpp b/src/rustllvm/PassWrapper.cpp
index 06d1301d700..bee8ae5853f 100644
--- a/src/rustllvm/PassWrapper.cpp
+++ b/src/rustllvm/PassWrapper.cpp
@@ -428,12 +428,22 @@ extern "C" void LLVMRustAddAnalysisPasses(LLVMTargetMachineRef TM,
 
 extern "C" void LLVMRustConfigurePassManagerBuilder(
     LLVMPassManagerBuilderRef PMBR, LLVMRustCodeGenOptLevel OptLevel,
-    bool MergeFunctions, bool SLPVectorize, bool LoopVectorize) {
+    bool MergeFunctions, bool SLPVectorize, bool LoopVectorize,
+    const char* PGOGenPath, const char* PGOUsePath) {
   // Ignore mergefunc for now as enabling it causes crashes.
   // unwrap(PMBR)->MergeFunctions = MergeFunctions;
   unwrap(PMBR)->SLPVectorize = SLPVectorize;
   unwrap(PMBR)->OptLevel = fromRust(OptLevel);
   unwrap(PMBR)->LoopVectorize = LoopVectorize;
+  if (PGOGenPath) {
+    assert(!PGOUsePath);
+    unwrap(PMBR)->EnablePGOInstrGen = true;
+    unwrap(PMBR)->PGOInstrGen = PGOGenPath;
+  }
+  if (PGOUsePath) {
+    assert(!PGOGenPath);
+    unwrap(PMBR)->PGOInstrUse = PGOUsePath;
+  }
 }
 
 // Unfortunately, the LLVM C API doesn't provide a way to set the `LibraryInfo`