From 5be479930d3dcfa3edb863703b1d73b89d45f03c Mon Sep 17 00:00:00 2001
From: Justin Lebar <jlebar@google.com>
Date: Tue, 9 Oct 2018 17:19:24 -0700
Subject: [XLA:GPU] Use CudnnConvKind in more places.

No functional change.

PiperOrigin-RevId: 216451881
---
 .../compiler/xla/service/gpu/pad_insertion.cc      | 31 +++++++++++-----------
 1 file changed, 16 insertions(+), 15 deletions(-)

(limited to 'tensorflow/compiler/xla/service/gpu/pad_insertion.cc')

diff --git a/tensorflow/compiler/xla/service/gpu/pad_insertion.cc b/tensorflow/compiler/xla/service/gpu/pad_insertion.cc
index b42a19e3a2..ae7abca7c6 100644
--- a/tensorflow/compiler/xla/service/gpu/pad_insertion.cc
+++ b/tensorflow/compiler/xla/service/gpu/pad_insertion.cc
@@ -19,6 +19,7 @@ limitations under the License.
 #include "tensorflow/compiler/xla/literal.h"
 #include "tensorflow/compiler/xla/literal_util.h"
 #include "tensorflow/compiler/xla/service/gpu/ir_emission_utils.h"
+#include "tensorflow/compiler/xla/service/hlo_casting_utils.h"
 #include "tensorflow/compiler/xla/service/hlo_creation_utils.h"
 #include "tensorflow/compiler/xla/service/shape_inference.h"
 #include "tensorflow/compiler/xla/util.h"
@@ -378,25 +379,25 @@ bool PadInsertion::CanonicalizeBackwardInputConvolution(
 
 StatusOr<bool> PadInsertion::RunOnComputation(HloComputation* computation) {
   bool changed = false;
-  std::vector<HloInstruction*> convs;
+  std::vector<HloCustomCallInstruction*> convs;
   for (auto* instr : computation->instructions()) {
     if (IsCustomCallToDnnConvolution(*instr)) {
-      convs.push_back(instr);
+      convs.push_back(Cast<HloCustomCallInstruction>(instr));
     }
   }
-  for (HloInstruction* instruction : convs) {
-    const auto& target = instruction->custom_call_target();
-    if (target == kCudnnConvForwardCallTarget ||
-        target == kCudnnConvBiasActivationForwardCallTarget) {
-      changed |= CanonicalizeForwardConvolution(instruction);
-    } else if (target == kCudnnConvBackwardFilterCallTarget) {
-      changed |= CanonicalizeBackwardFilterConvolution(instruction);
-    } else if (target == kCudnnConvBackwardInputCallTarget) {
-      changed |= CanonicalizeBackwardInputConvolution(instruction);
-    } else {
-      LOG(FATAL) << "Unknown custom call target for cudnn conv: "
-                 << instruction->ToString();
-    }
+  for (HloCustomCallInstruction* instruction : convs) {
+    TF_ASSIGN_OR_RETURN(auto kind, GetCudnnConvKind(instruction));
+    changed |= [&] {
+      switch (kind) {
+        case CudnnConvKind::kForward:
+        case CudnnConvKind::kForwardActivation:
+          return CanonicalizeForwardConvolution(instruction);
+        case CudnnConvKind::kBackwardInput:
+          return CanonicalizeBackwardInputConvolution(instruction);
+        case CudnnConvKind::kBackwardFilter:
+          return CanonicalizeBackwardFilterConvolution(instruction);
+      }
+    }();
   }
   return changed;
 }
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