stub out PPCMCInstLowering, add a new option that uses it and the new
instprinter when -enable-ppc-inst-printer is passed to llc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119061 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 833a83e..d1b54e4 100644
--- a/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -20,6 +20,7 @@
#include "PPC.h"
#include "PPCPredicates.h"
#include "PPCTargetMachine.h"
+#include "PPCMCInstLower.h"
#include "PPCSubtarget.h"
#include "llvm/Analysis/DebugInfo.h"
#include "llvm/Constants.h"
@@ -35,6 +36,7 @@
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
@@ -43,6 +45,7 @@
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegistry.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/ErrorHandling.h"
@@ -53,6 +56,11 @@
#include "InstPrinter/PPCInstPrinter.h"
using namespace llvm;
+// This option tells the asmprinter to use the new (experimental) MCInstPrinter
+// path.
+static cl::opt<bool> UseInstPrinter("enable-ppc-inst-printer",
+ cl::ReallyHidden);
+
namespace {
class PPCAsmPrinter : public AsmPrinter {
protected:
@@ -544,6 +552,22 @@
/// the current output stream.
///
void PPCAsmPrinter::EmitInstruction(const MachineInstr *MI) {
+ if (UseInstPrinter) {
+ PPCMCInstLower MCInstLowering(OutContext, *Mang, *this);
+
+ // Lower multi-instruction pseudo operations.
+ switch (MI->getOpcode()) {
+ default: break;
+ // TODO: implement me.
+ }
+
+ MCInst TmpInst;
+ MCInstLowering.Lower(MI, TmpInst);
+ OutStreamer.EmitInstruction(TmpInst);
+ return;
+ }
+
+
SmallString<128> Str;
raw_svector_ostream O(Str);