NFC: Cleanup non-conforming usages of namespaces.

* Fixes use of anonymous namespace for static methods.
* Uses explicit qualifiers(mlir::) instead of wrapping the definition with the namespace.

PiperOrigin-RevId: 286222654

2 files changed, 7 insertions, 16 deletions

diff --git a/mlir/lib/Quantizer/Support/Statistics.cpp b/mlir/lib/Quantizer/Support/Statistics.cpp
index d155875cfe3..6753898dbdc 100644
--- a/mlir/lib/Quantizer/Support/Statistics.cpp
+++ b/mlir/lib/Quantizer/Support/Statistics.cpp
@@ -95,15 +95,10 @@ bool AttributeTensorStatistics::get(TensorAxisStatistics &stats) const {
   return false;
 }
 
-namespace mlir {
-namespace quantizer {
-
-raw_ostream &operator<<(raw_ostream &os, const TensorAxisStatistics &stats) {
+raw_ostream &mlir::quantizer::operator<<(raw_ostream &os,
+                                         const TensorAxisStatistics &stats) {
   os << "STATS[sampleSize=" << stats.sampleSize << ", min=" << stats.minValue
      << ", maxValue=" << stats.maxValue << ", mean=" << stats.mean
      << ", variance=" << stats.variance << "]";
   return os;
 }
-
-} // end namespace quantizer
-} // end namespace mlir
diff --git a/mlir/lib/Quantizer/Support/UniformSolvers.cpp b/mlir/lib/Quantizer/Support/UniformSolvers.cpp
index bd2fe686ee1..77d69be8382 100644
--- a/mlir/lib/Quantizer/Support/UniformSolvers.cpp
+++ b/mlir/lib/Quantizer/Support/UniformSolvers.cpp
@@ -127,16 +127,15 @@ double UniformParamsFromMinMaxSolver::dequantize(int64_t xq) const {
   return (xq - zp) * delta;
 }
 
-namespace mlir {
-namespace quantizer {
-
-raw_ostream &operator<<(raw_ostream &os, const UniformStorageParams &p) {
+raw_ostream &mlir::quantizer::operator<<(raw_ostream &os,
+                                         const UniformStorageParams &p) {
   os << "UniformStorageParams{" << p.numLevels << ", " << p.minValue << "}";
   return os;
 }
 
-raw_ostream &operator<<(raw_ostream &os,
-                        const UniformParamsFromMinMaxSolver &s) {
+raw_ostream &
+mlir::quantizer::operator<<(raw_ostream &os,
+                            const UniformParamsFromMinMaxSolver &s) {
   os << "UniformParamsFromMinMaxSolver(" << s.getStepCount() << "){";
   os << "(" << s.getBoundingMin() << ":" << s.getBoundingMax() << ") -> ";
   if (!s.isSatisfied()) {
@@ -151,6 +150,3 @@ raw_ostream &operator<<(raw_ostream &os,
 
   return os;
 }
-
-} // end namespace quantizer
-} // end namespace mlir