; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes=gvn %s | FileCheck %s

; NOTE: A test to confirm GVN doesn't introduce phis for token like types.
; NOTE: This implies the CHECKS should exactly match the IR.

%"$Globals" = type { i32 }
@CBV = external constant %"$Globals"
@Out.str = private unnamed_addr constant [4 x i8] c"Out\00", align 1

define i32 @CSMain() local_unnamed_addr {
; CHECK-LABEL: define i32 @CSMain() local_unnamed_addr {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    [[LOADGLOBAL:%.*]] = load i32, ptr @CBV, align 4
; CHECK-NEXT:    [[CMP_I1_NOT:%.*]] = icmp eq i32 [[LOADGLOBAL]], 0
; CHECK-NEXT:    br i1 [[CMP_I1_NOT]], label %[[CSMAIN_EXIT:.*]], label %[[FOR_BODY_I_LR_PH:.*]]
; CHECK:       [[FOR_BODY_I_LR_PH]]:
; CHECK-NEXT:    [[BUF:%.*]] = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i32_1_0t(i32 0, i32 0, i32 4, i32 [[LOADGLOBAL]], ptr nonnull @Out.str)
; CHECK-NEXT:    br label %[[FOR_BODY_I:.*]]
; CHECK:       [[FOR_BODY_I]]:
; CHECK-NEXT:    [[LOOPPHI:%.*]] = phi i32 [ 0, %[[FOR_BODY_I_LR_PH]] ], [ [[INC_I:%.*]], %[[FOR_BODY_I]] ]
; CHECK-NEXT:    [[UPDATECNT:%.*]] = tail call noundef i32 @llvm.dx.resource.updatecounter.tdx.RawBuffer_i32_1_0t(target("dx.RawBuffer", i32, 1, 0) [[BUF]], i8 1)
; CHECK-NEXT:    [[INC_I]] = add nuw nsw i32 [[LOOPPHI]], 1
; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp ne i32 [[INC_I]], [[LOADGLOBAL]]
; CHECK-NEXT:    br i1 [[EXITCOND]], label %[[FOR_BODY_I]], label %[[CSMAIN_EXIT]]
; CHECK:       [[CSMAIN_EXIT]]:
; CHECK-NEXT:    [[BUFEXIT:%.*]] = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i32_1_0t(i32 0, i32 0, i32 4, i32 [[LOADGLOBAL]], ptr nonnull @Out.str)
; CHECK-NEXT:    [[UPDATECNTEXIT:%.*]] = tail call noundef i32 @llvm.dx.resource.updatecounter.tdx.RawBuffer_i32_1_0t(target("dx.RawBuffer", i32, 1, 0) [[BUFEXIT]], i8 1)
; CHECK-NEXT:    ret i32 [[UPDATECNTEXIT]]
;
entry:
  %loadGlobal = load i32, ptr @CBV, align 4
  %cmp.i1.not = icmp eq i32 %loadGlobal, 0
  br i1 %cmp.i1.not, label %CSMain.exit, label %for.body.i.lr.ph

for.body.i.lr.ph:
  %buf = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 4, i32 %loadGlobal, ptr nonnull @Out.str)
  br label %for.body.i

for.body.i:
  %loopPhi = phi i32 [ 0, %for.body.i.lr.ph ], [ %inc.i, %for.body.i ]
  %updateCnt = tail call noundef i32 @llvm.dx.resource.updatecounter(target("dx.RawBuffer", i32, 1, 0) %buf, i8 1)
  %inc.i = add nuw nsw i32 %loopPhi, 1
  %exitcond = icmp ne i32 %inc.i, %loadGlobal
  br i1 %exitcond, label %for.body.i, label %CSMain.exit

CSMain.exit:
  %bufExit = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 4, i32 %loadGlobal, ptr nonnull @Out.str)
  %updateCntExit = tail call noundef i32 @llvm.dx.resource.updatecounter(target("dx.RawBuffer", i32, 1, 0) %bufExit, i8 1)
  ret i32 %updateCntExit
}