11c0fc1f0SFlorian Hahn; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 22e14900dSBjorn Pettersson; RUN: opt -passes=loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S %s | FileCheck %s 31c0fc1f0SFlorian Hahn 41c0fc1f0SFlorian Hahn 51c0fc1f0SFlorian Hahn; Test case where %gep has multiple uses of %iv. 67d757725SNikita Popovdefine void @multiple_iv_uses_in_same_instruction(ptr %ptr) { 71c0fc1f0SFlorian Hahn; CHECK-LABEL: @multiple_iv_uses_in_same_instruction( 81c0fc1f0SFlorian Hahn; CHECK-NEXT: entry: 91c0fc1f0SFlorian Hahn; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 101c0fc1f0SFlorian Hahn; CHECK: vector.ph: 111c0fc1f0SFlorian Hahn; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 121c0fc1f0SFlorian Hahn; CHECK: vector.body: 131c0fc1f0SFlorian Hahn; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 14*9536a628SFlorian Hahn; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 15*9536a628SFlorian Hahn; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 1 16*9536a628SFlorian Hahn; CHECK-NEXT: [[TMP2:%.*]] = trunc i64 [[INDEX]] to i32 17*9536a628SFlorian Hahn; CHECK-NEXT: [[TMP3:%.*]] = add i32 [[TMP2]], 0 18*9536a628SFlorian Hahn; CHECK-NEXT: [[TMP4:%.*]] = add i32 [[TMP2]], 1 19*9536a628SFlorian Hahn; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds [100 x [100 x i32]], ptr [[PTR:%.*]], i64 0, i64 [[TMP0]], i64 [[TMP0]] 20*9536a628SFlorian Hahn; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds [100 x [100 x i32]], ptr [[PTR]], i64 0, i64 [[TMP1]], i64 [[TMP1]] 21*9536a628SFlorian Hahn; CHECK-NEXT: store i32 [[TMP3]], ptr [[TMP5]], align 4 22*9536a628SFlorian Hahn; CHECK-NEXT: store i32 [[TMP4]], ptr [[TMP6]], align 4 231c0fc1f0SFlorian Hahn; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 2485983ca4SFlorian Hahn; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], 100 2585983ca4SFlorian Hahn; CHECK-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 261c0fc1f0SFlorian Hahn; CHECK: middle.block: 2796e83d37SFlorian Hahn; CHECK-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]] 281c0fc1f0SFlorian Hahn; CHECK: scalar.ph: 291c0fc1f0SFlorian Hahn; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 100, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 301c0fc1f0SFlorian Hahn; CHECK-NEXT: br label [[LOOP:%.*]] 311c0fc1f0SFlorian Hahn; CHECK: loop: 321c0fc1f0SFlorian Hahn; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ] 337d757725SNikita Popov; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [100 x [100 x i32]], ptr [[PTR]], i64 0, i64 [[IV]], i64 [[IV]] 341c0fc1f0SFlorian Hahn; CHECK-NEXT: [[T:%.*]] = trunc i64 [[IV]] to i32 357d757725SNikita Popov; CHECK-NEXT: store i32 [[T]], ptr [[GEP]], align 4 361c0fc1f0SFlorian Hahn; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 371c0fc1f0SFlorian Hahn; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[IV_NEXT]], 100 38*9536a628SFlorian Hahn; CHECK-NEXT: br i1 [[EXITCOND]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP3:![0-9]+]] 391c0fc1f0SFlorian Hahn; CHECK: exit: 401c0fc1f0SFlorian Hahn; CHECK-NEXT: ret void 411c0fc1f0SFlorian Hahn; 421c0fc1f0SFlorian Hahnentry: 431c0fc1f0SFlorian Hahn br label %loop 441c0fc1f0SFlorian Hahn 451c0fc1f0SFlorian Hahnloop: 461c0fc1f0SFlorian Hahn %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] 477d757725SNikita Popov %gep = getelementptr inbounds [100 x [100 x i32]], ptr %ptr, i64 0, i64 %iv, i64 %iv 481c0fc1f0SFlorian Hahn %t = trunc i64 %iv to i32 497d757725SNikita Popov store i32 %t, ptr %gep, align 4 501c0fc1f0SFlorian Hahn %iv.next = add nuw nsw i64 %iv, 1 511c0fc1f0SFlorian Hahn %exitcond = icmp eq i64 %iv.next, 100 521c0fc1f0SFlorian Hahn br i1 %exitcond, label %exit, label %loop 531c0fc1f0SFlorian Hahn 541c0fc1f0SFlorian Hahnexit: 551c0fc1f0SFlorian Hahn ret void 561c0fc1f0SFlorian Hahn} 57