[mlir][gpu] Clean up prints in GPU dialect. NFC. (#136250)

Clean up printing code by switching to `llvm::interleaved` from
#135517. Also make some minor
readability & performance fixes.

Author: kuhar

mlir/lib/Dialect/GPU/IR/GPUDialect.cpp

@@ -35,6 +35,8 @@
 #include "llvm/ADT/TypeSwitch.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormatVariadic.h"
+#include "llvm/Support/InterleavedRange.h"
 #include "llvm/Support/StringSaver.h"
 #include <cassert>
 #include <numeric>
@@ -479,10 +481,11 @@ static void printAttributions(OpAsmPrinter &p, StringRef keyword,
   if (values.empty())
     return;
 
-  p << ' ' << keyword << '(';
-  llvm::interleaveComma(
-      values, p, [&p](BlockArgument v) { p << v << " : " << v.getType(); });
-  p << ')';
+  auto printBlockArg = [](BlockArgument v) {
+    return llvm::formatv("{} : {}", v, v.getType());
+  };
+  p << ' ' << keyword << '('
+    << llvm::interleaved(llvm::map_range(values, printBlockArg)) << ')';
 }
 
 /// Verifies a GPU function memory attribution.
@@ -1311,11 +1314,10 @@ static void printLaunchFuncOperands(OpAsmPrinter &printer, Operation *,
   if (operands.empty())
     return;
   printer << "args(";
-  llvm::interleaveComma(llvm::zip(operands, types), printer,
+  llvm::interleaveComma(llvm::zip_equal(operands, types), printer,
                         [&](const auto &pair) {
-                          printer.printOperand(std::get<0>(pair));
-                          printer << " : ";
-                          printer.printType(std::get<1>(pair));
+                          auto [operand, type] = pair;
+                          printer << operand << " : " << type;
                         });
   printer << ")";
 }

mlir/lib/Dialect/GPU/TransformOps/GPUTransformOps.cpp

@@ -40,6 +40,7 @@
 #include "llvm/ADT/TypeSwitch.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/InterleavedRange.h"
 #include <type_traits>
 
 using namespace mlir;
@@ -450,20 +451,14 @@ static DiagnosedSilenceableFailure rewriteOneForallCommonImpl(
     // Otherwise, we have a new insertion without a size -> use size 1.
     tmpMappingSizes.push_back(1);
   }
-  LLVM_DEBUG(
-      llvm::interleaveComma(
-          tmpMappingSizes,
-          DBGS() << "----tmpMappingSizes extracted from scf.forall op: ");
-      llvm::dbgs() << "\n");
+  LDBG("----tmpMappingSizes extracted from scf.forall op: "
+       << llvm::interleaved(tmpMappingSizes));
 
   // Step 2. sort the values by the corresponding DeviceMappingAttrInterface.
   SmallVector<int64_t> forallMappingSizes = getValuesSortedByKey(
       forallMappingAttrs.getArrayRef(), tmpMappingSizes, comparator);
-  LLVM_DEBUG(llvm::interleaveComma(forallMappingSizes,
-                                   DBGS() << "----forallMappingSizes: ");
-             llvm::dbgs() << "\n"; llvm::interleaveComma(
-                 forallMappingAttrs, DBGS() << "----forallMappingAttrs: ");
-             llvm::dbgs() << "\n");
+  LDBG("----forallMappingSizes: " << llvm::interleaved(forallMappingSizes));
+  LDBG("----forallMappingAttrs: " << llvm::interleaved(forallMappingAttrs));
 
   // Step 3. Generate the mappingIdOps using the provided generator.
   Location loc = forallOp.getLoc();
@@ -501,17 +496,10 @@ static DiagnosedSilenceableFailure rewriteOneForallCommonImpl(
     SmallVector<int64_t> availableMappingSizes =
         builderResult.availableMappingSizes;
     SmallVector<Value> activeIdOps = builderResult.activeIdOps;
-    // clang-format off
-    LLVM_DEBUG(
-        llvm::interleaveComma(
-          activeMappingSizes, DBGS() << "----activeMappingSizes: ");
-        llvm::dbgs() << "\n";
-        llvm::interleaveComma(
-          availableMappingSizes, DBGS() << "----availableMappingSizes: ");
-        llvm::dbgs() << "\n";
-        llvm::interleaveComma(activeIdOps, DBGS() << "----activeIdOps: ");
-        llvm::dbgs() << "\n");
-    // clang-format on
+    LDBG("----activeMappingSizes: " << llvm::interleaved(activeMappingSizes));
+    LDBG("----availableMappingSizes: "
+         << llvm::interleaved(availableMappingSizes));
+    LDBG("----activeIdOps: " << llvm::interleaved(activeIdOps));
     for (auto [activeId, activeMappingSize, availableMappingSize] :
          llvm::zip_equal(activeIdOps, activeMappingSizes,
                          availableMappingSizes)) {
@@ -566,11 +554,9 @@ static DiagnosedSilenceableFailure rewriteOneForallCommonImpl(
   // Step 8. Erase old op.
   rewriter.eraseOp(forallOp);
 
-  LLVM_DEBUG(llvm::interleaveComma(forallMappingSizes,
-                                   DBGS() << "----result forallMappingSizes: ");
-             llvm::dbgs() << "\n"; llvm::interleaveComma(
-                 mappingIdOps, DBGS() << "----result mappingIdOps: ");
-             llvm::dbgs() << "\n");
+  LDBG("----result forallMappingSizes: "
+       << llvm::interleaved(forallMappingSizes));
+  LDBG("----result mappingIdOps: " << llvm::interleaved(mappingIdOps));
 
   result = ForallRewriteResult{forallMappingSizes, mappingIdOps};
   return DiagnosedSilenceableFailure::success();
@@ -740,7 +726,7 @@ static DiagnosedSilenceableFailure checkMappingSpec(
     auto diag = definiteFailureHelper(
         transformOp, forallOp,
         Twine("3-D mapping: size of threadIdx.x must be a multiple of ") +
-            std::to_string(factor));
+            Twine(factor));
     return diag;
   }
   if (computeProduct(numParallelIterations) * factor >
@@ -749,9 +735,9 @@ static DiagnosedSilenceableFailure checkMappingSpec(
         transformOp, forallOp,
         Twine("the number of required parallel resources (blocks or "
               "threads) ") +
-            std::to_string(computeProduct(numParallelIterations) * factor) +
-            std::string(" overflows the number of available resources ") +
-            std::to_string(computeProduct(blockOrGridSizes)));
+            Twine(computeProduct(numParallelIterations) * factor) +
+            " overflows the number of available resources " +
+            Twine(computeProduct(blockOrGridSizes)));
     return diag;
   }
   return DiagnosedSilenceableFailure::success();