[llvm] 2defe55 - [TTI] Expose isNoopAddrSpaceCast in TTI.

[Michael Liao via llvm-commits]

Author: Michael Liao
Date: 2020-06-18T14:40:47-04:00
New Revision: 2defe557226d141a2f36f50dadb8be016683df92

URL: https://github.com/llvm/llvm-project/commit/2defe557226d141a2f36f50dadb8be016683df92
DIFF: https://github.com/llvm/llvm-project/commit/2defe557226d141a2f36f50dadb8be016683df92.diff

LOG: [TTI] Expose isNoopAddrSpaceCast in TTI.

Reviewers: arsenm

Subscribers: wdng, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D82025

Added: 
    

Modified: 
    llvm/include/llvm/Analysis/TargetTransformInfo.h
    llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
    llvm/include/llvm/CodeGen/BasicTTIImpl.h
    llvm/lib/Analysis/TargetTransformInfo.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/include/llvm/Analysis/TargetTransformInfo.h b/llvm/include/llvm/Analysis/TargetTransformInfo.h
index 52da77dd35fc..cc6426b86f3c 100644
--- a/llvm/include/llvm/Analysis/TargetTransformInfo.h
+++ b/llvm/include/llvm/Analysis/TargetTransformInfo.h
@@ -377,6 +377,8 @@ class TargetTransformInfo {
   bool collectFlatAddressOperands(SmallVectorImpl<int> &OpIndexes,
                                   Intrinsic::ID IID) const;
 
+  bool isNoopAddrSpaceCast(unsigned FromAS, unsigned ToAS) const;
+
   /// Rewrite intrinsic call \p II such that \p OldV will be replaced with \p
   /// NewV, which has a 
diff erent address space. This should happen for every
   /// operand index that collectFlatAddressOperands returned for the intrinsic.
@@ -1275,6 +1277,7 @@ class TargetTransformInfo::Concept {
   virtual unsigned getFlatAddressSpace() = 0;
   virtual bool collectFlatAddressOperands(SmallVectorImpl<int> &OpIndexes,
                                           Intrinsic::ID IID) const = 0;
+  virtual bool isNoopAddrSpaceCast(unsigned FromAS, unsigned ToAS) const = 0;
   virtual Value *rewriteIntrinsicWithAddressSpace(IntrinsicInst *II,
                                                   Value *OldV,
                                                   Value *NewV) const = 0;
@@ -1546,6 +1549,10 @@ class TargetTransformInfo::Model final : public TargetTransformInfo::Concept {
     return Impl.collectFlatAddressOperands(OpIndexes, IID);
   }
 
+  bool isNoopAddrSpaceCast(unsigned FromAS, unsigned ToAS) const override {
+    return Impl.isNoopAddrSpaceCast(FromAS, ToAS);
+  }
+
   Value *rewriteIntrinsicWithAddressSpace(IntrinsicInst *II, Value *OldV,
                                           Value *NewV) const override {
     return Impl.rewriteIntrinsicWithAddressSpace(II, OldV, NewV);

diff  --git a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
index 2f6faa719d91..f0a07c0aa018 100644
--- a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
+++ b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
@@ -87,6 +87,8 @@ class TargetTransformInfoImplBase {
     return false;
   }
 
+  bool isNoopAddrSpaceCast(unsigned, unsigned) const { return false; }
+
   Value *rewriteIntrinsicWithAddressSpace(IntrinsicInst *II, Value *OldV,
                                           Value *NewV) const {
     return nullptr;

diff  --git a/llvm/include/llvm/CodeGen/BasicTTIImpl.h b/llvm/include/llvm/CodeGen/BasicTTIImpl.h
index 3e190a08a0a2..5a52f273a566 100644
--- a/llvm/include/llvm/CodeGen/BasicTTIImpl.h
+++ b/llvm/include/llvm/CodeGen/BasicTTIImpl.h
@@ -222,6 +222,10 @@ class BasicTTIImplBase : public TargetTransformInfoImplCRTPBase<T> {
     return false;
   }
 
+  bool isNoopAddrSpaceCast(unsigned FromAS, unsigned ToAS) const {
+    return getTLI()->isNoopAddrSpaceCast(FromAS, ToAS);
+  }
+
   Value *rewriteIntrinsicWithAddressSpace(IntrinsicInst *II, Value *OldV,
                                           Value *NewV) const {
     return nullptr;

diff  --git a/llvm/lib/Analysis/TargetTransformInfo.cpp b/llvm/lib/Analysis/TargetTransformInfo.cpp
index 642c15efcb09..693b5b7a493c 100644
--- a/llvm/lib/Analysis/TargetTransformInfo.cpp
+++ b/llvm/lib/Analysis/TargetTransformInfo.cpp
@@ -291,6 +291,11 @@ bool TargetTransformInfo::collectFlatAddressOperands(
   return TTIImpl->collectFlatAddressOperands(OpIndexes, IID);
 }
 
+bool TargetTransformInfo::isNoopAddrSpaceCast(unsigned FromAS,
+                                              unsigned ToAS) const {
+  return TTIImpl->isNoopAddrSpaceCast(FromAS, ToAS);
+}
+
 Value *TargetTransformInfo::rewriteIntrinsicWithAddressSpace(
     IntrinsicInst *II, Value *OldV, Value *NewV) const {
   return TTIImpl->rewriteIntrinsicWithAddressSpace(II, OldV, NewV);