MC: Add an MCLoggingStreamer, for use in debugging integrated-as mismatches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104463 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index 9a776ed..48c4240 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -69,6 +69,8 @@
cl::desc("Show encoding in .s output"));
static cl::opt<bool> ShowMCInst("show-mc-inst", cl::Hidden,
cl::desc("Show instruction structure in .s output"));
+static cl::opt<bool> EnableMCLogging("enable-mc-api-logging", cl::Hidden,
+ cl::desc("Enable MC API logging"));
static cl::opt<bool> VerifyMachineCode("verify-machineinstrs", cl::Hidden,
cl::desc("Verify generated machine code"),
cl::init(getenv("LLVM_VERIFY_MACHINEINSTRS")!=NULL));
@@ -168,7 +170,10 @@
AsmStreamer.reset(createNullStreamer(*Context));
break;
}
-
+
+ if (EnableMCLogging)
+ AsmStreamer.reset(createLoggingStreamer(AsmStreamer.take(), errs()));
+
// Create the AsmPrinter, which takes ownership of AsmStreamer if successful.
FunctionPass *Printer = getTarget().createAsmPrinter(*this, *AsmStreamer);
if (Printer == 0)