[LLVM] Make more use of IRBuilder::CreateIntrinsic. NFC. (#112706)

Convert many instances of:
  Fn = Intrinsic::getOrInsertDeclaration(...);
  CreateCall(Fn, ...)
to the equivalent CreateIntrinsic call.

1 files changed, 5 insertions, 9 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp b/llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
index 7d3164c79089..c49aab823b44 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
@@ -576,10 +576,9 @@ bool AMDGPUCodeGenPrepareImpl::promoteUniformBitreverseToI32(
   Builder.SetCurrentDebugLocation(I.getDebugLoc());
 
   Type *I32Ty = getI32Ty(Builder, I.getType());
-  Function *I32 =
-      Intrinsic::getOrInsertDeclaration(Mod, Intrinsic::bitreverse, {I32Ty});
   Value *ExtOp = Builder.CreateZExt(I.getOperand(0), I32Ty);
-  Value *ExtRes = Builder.CreateCall(I32, { ExtOp });
+  Value *ExtRes =
+      Builder.CreateIntrinsic(Intrinsic::bitreverse, {I32Ty}, {ExtOp});
   Value *LShrOp =
       Builder.CreateLShr(ExtRes, 32 - getBaseElementBitWidth(I.getType()));
   Value *TruncRes =
@@ -1260,9 +1259,8 @@ Value *AMDGPUCodeGenPrepareImpl::expandDivRem24Impl(
   Value *FB = IsSigned ? Builder.CreateSIToFP(IB,F32Ty)
                        : Builder.CreateUIToFP(IB,F32Ty);
 
-  Function *RcpDecl = Intrinsic::getOrInsertDeclaration(
-      Mod, Intrinsic::amdgcn_rcp, Builder.getFloatTy());
-  Value *RCP = Builder.CreateCall(RcpDecl, { FB });
+  Value *RCP = Builder.CreateIntrinsic(Intrinsic::amdgcn_rcp,
+                                       Builder.getFloatTy(), {FB});
   Value *FQM = Builder.CreateFMul(FA, RCP);
 
   // fq = trunc(fqm);
@@ -1455,9 +1453,7 @@ Value *AMDGPUCodeGenPrepareImpl::expandDivRem32(IRBuilder<> &Builder,
 
   // Initial estimate of inv(y).
   Value *FloatY = Builder.CreateUIToFP(Y, F32Ty);
-  Function *Rcp =
-      Intrinsic::getOrInsertDeclaration(Mod, Intrinsic::amdgcn_rcp, F32Ty);
-  Value *RcpY = Builder.CreateCall(Rcp, {FloatY});
+  Value *RcpY = Builder.CreateIntrinsic(Intrinsic::amdgcn_rcp, F32Ty, {FloatY});
   Constant *Scale = ConstantFP::get(F32Ty, llvm::bit_cast<float>(0x4F7FFFFE));
   Value *ScaledY = Builder.CreateFMul(RcpY, Scale);
   Value *Z = Builder.CreateFPToUI(ScaledY, I32Ty);