diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.h b/llvm/lib/Target/PowerPC/PPCISelLowering.h
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.h
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.h
@@ -1188,6 +1188,11 @@
     CCAssignFn *ccAssignFnForCall(CallingConv::ID CC, bool Return,
                                   bool IsVarArg) const;
 
+    // Return whether the call instruction can potentially be optimized to a
+    // tail call. This will cause the optimizers to attempt to move, or
+    // duplicate return instructions to help enable tail call optimizations.
+    bool mayBeEmittedAsTailCall(const CallInst *CI) const override;
+
   private:
     struct ReuseLoadInfo {
       SDValue Ptr;
@@ -1464,10 +1469,6 @@
     /// handled by the XXSPLTI32DX instruction introduced in ISA 3.1.
     SDValue lowerToXXSPLTI32DX(ShuffleVectorSDNode *N, SelectionDAG &DAG) const;
 
-    // Return whether the call instruction can potentially be optimized to a
-    // tail call. This will cause the optimizers to attempt to move, or
-    // duplicate return instructions to help enable tail call optimizations.
-    bool mayBeEmittedAsTailCall(const CallInst *CI) const override;
     bool hasBitPreservingFPLogic(EVT VT) const override;
     bool isMaskAndCmp0FoldingBeneficial(const Instruction &AndI) const override;
 
diff --git a/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp b/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
--- a/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
@@ -1117,17 +1117,36 @@
 }
 
 bool PPCTTIImpl::supportsTailCallFor(const CallBase *CB) const {
+  // Can't tail call when always use indirect calls.
+  if (ST->useLongCalls())
+    return false;
+
   // Subtargets using PC-Relative addressing supported.
   if (ST->isUsingPCRelativeCalls())
     return true;
 
+  auto *C = dyn_cast<CallInst>(CB);
+  if (!C)
+    return false;
+
+  if (ST->is64BitELFABI())
+    return TLI->mayBeEmittedAsTailCall(C);
+
+  // Below checks mimic IsEligibleForTailCallOptimization
+  if (!ST->getTargetMachine().Options.GuaranteedTailCallOpt)
+    return false;
+
   const Function *Callee = CB->getCalledFunction();
   // Indirect calls and variadic argument functions not supported.
   if (!Callee || Callee->isVarArg())
     return false;
 
-  const Function *Caller = CB->getCaller();
-  // Support if we can share TOC base.
-  return ST->getTargetMachine().shouldAssumeDSOLocal(*Caller->getParent(),
-                                                     Callee);
+  // shouldBeMustTail already confirmed: CallerCC == CalleeCC, and that CB does
+  // not have any ABI-impacting function attributes including ByVal. Then
+  // non-PIC/GOT tail calls are supported.
+  if (CB->getCallingConv() == CallingConv::Fast &&
+      ST->getTargetMachine().getRelocationModel() != Reloc::PIC_)
+    return true;
+
+  return false;
 }
diff --git a/llvm/test/Transforms/Coroutines/coro-split-musttail-ppc64le.ll b/llvm/test/Transforms/Coroutines/coro-split-musttail-ppc64le.ll
--- a/llvm/test/Transforms/Coroutines/coro-split-musttail-ppc64le.ll
+++ b/llvm/test/Transforms/Coroutines/coro-split-musttail-ppc64le.ll
@@ -3,7 +3,15 @@
 ; RUN:     -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 | FileCheck %s
 ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S \
 ; RUN:     -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr10 --code-model=medium \
-; RUN:     | FileCheck %s --check-prefix=CHECK-PCREL
+; RUN:     | FileCheck %s --check-prefix=CHECK-MUSTTAIL
+; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S \
+; RUN:     -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr10 --code-model=medium -mattr=+longcall \
+; RUN:     | FileCheck %s
+; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S \
+; RUN:     -mtriple=powerpc-- | FileCheck %s
+; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S \
+; RUN:     -mtriple=ppc32-- | FileCheck %s
+; REQUIRES: asserts
 
 define void @f() #0 {
 entry:
@@ -46,10 +54,10 @@
 ; CHECK-NEXT: call fastcc void %[[addr2]](ptr null)
 
 ; Verify that ppc target using PC-Relative addressing in the resume part resume call is marked with musttail.
-; CHECK-PCREL-LABEL: @f.resume(
-; CHECK-PCREL: %[[addr2:.+]] = call ptr @llvm.coro.subfn.addr(ptr null, i8 0)
-; CHECK-PCREL-NEXT: musttail call fastcc void %[[addr2]](ptr null)
-; CHECK-PCREL-NEXT: ret void
+; CHECK-MUSTTAIL-LABEL: @f.resume(
+; CHECK-MUSTTAIL: %[[addr2:.+]] = call ptr @llvm.coro.subfn.addr(ptr null, i8 0)
+; CHECK-MUSTTAIL-NEXT: musttail call fastcc void %[[addr2]](ptr null)
+; CHECK-MUSTTAIL-NEXT: ret void
 
 declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr) #1
 declare i1 @llvm.coro.alloc(token) #2