[llvm] 20c074e - C] Add option to ARCOptAddrMode to disable the pass and diagnose errors

[Mark Schimmel via llvm-commits]

Author: Mark Schimmel
Date: 2021-10-07T09:07:07-07:00
New Revision: 20c074ee969d41aa4af84beaf91b3e19eb0ca639

URL: https://github.com/llvm/llvm-project/commit/20c074ee969d41aa4af84beaf91b3e19eb0ca639
DIFF: https://github.com/llvm/llvm-project/commit/20c074ee969d41aa4af84beaf91b3e19eb0ca639.diff

LOG: C] Add option to ARCOptAddrMode to disable the pass and diagnose errors
Fixed formatting issues reported by clang-format

Differential Revision: https://reviews.llvm.org/D111255

Added: 
    

Modified: 
    llvm/lib/Target/ARC/ARCOptAddrMode.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/ARC/ARCOptAddrMode.cpp b/llvm/lib/Target/ARC/ARCOptAddrMode.cpp
index 232a7be2a9f5..4ba8c13a42db 100644
--- a/llvm/lib/Target/ARC/ARCOptAddrMode.cpp
+++ b/llvm/lib/Target/ARC/ARCOptAddrMode.cpp
@@ -23,6 +23,7 @@
 #include "llvm/CodeGen/TargetRegisterInfo.h"
 #include "llvm/IR/Function.h"
 #include "llvm/InitializePasses.h"
+#include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 
@@ -33,6 +34,16 @@ using namespace llvm;
 #define DEBUG_TYPE "arc-addr-mode"
 
 namespace llvm {
+
+static cl::opt<unsigned> ArcKillAddrMode("arc-kill-addr-mode", cl::init(0),
+                                         cl::ReallyHidden, cl::ZeroOrMore);
+
+#define DUMP_BEFORE() ((ArcKillAddrMode & 0x0001) != 0)
+#define DUMP_AFTER() ((ArcKillAddrMode & 0x0002) != 0)
+#define VIEW_BEFORE() ((ArcKillAddrMode & 0x0004) != 0)
+#define VIEW_AFTER() ((ArcKillAddrMode & 0x0008) != 0)
+#define KILL_PASS() ((ArcKillAddrMode & 0x0010) != 0)
+
 FunctionPass *createARCOptAddrMode();
 void initializeARCOptAddrModePass(PassRegistry &);
 } // end namespace llvm
@@ -485,9 +496,14 @@ bool ARCOptAddrMode::processBasicBlock(MachineBasicBlock &MBB) {
 }
 
 bool ARCOptAddrMode::runOnMachineFunction(MachineFunction &MF) {
-  if (skipFunction(MF.getFunction()))
+  if (skipFunction(MF.getFunction()) || KILL_PASS())
     return false;
 
+  if (DUMP_BEFORE())
+    MF.dump();
+  if (VIEW_BEFORE())
+    MF.viewCFG();
+
   AST = &MF.getSubtarget<ARCSubtarget>();
   AII = AST->getInstrInfo();
   MRI = &MF.getRegInfo();
@@ -496,6 +512,11 @@ bool ARCOptAddrMode::runOnMachineFunction(MachineFunction &MF) {
   bool Changed = false;
   for (auto &MBB : MF)
     Changed |= processBasicBlock(MBB);
+
+  if (DUMP_AFTER())
+    MF.dump();
+  if (VIEW_AFTER())
+    MF.viewCFG();
   return Changed;
 }