1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3 2; RUN: opt < %s -passes=loop-vectorize,instcombine -enable-histogram-loop-vectorization -force-vector-width=2 -S | FileCheck %s 3 4;; Currently we don't expect this to vectorize, since the generic cost model returns 5;; invalid for the histogram intrinsic. 6define void @simple_histogram(ptr noalias %buckets, ptr readonly %indices, i64 %N) { 7; CHECK-LABEL: define void @simple_histogram( 8; CHECK-SAME: ptr noalias [[BUCKETS:%.*]], ptr readonly [[INDICES:%.*]], i64 [[N:%.*]]) { 9; CHECK-NEXT: entry: 10; CHECK-NEXT: br label [[FOR_BODY:%.*]] 11; CHECK: for.body: 12; CHECK-NEXT: [[IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ] 13; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[INDICES]], i64 [[IV]] 14; CHECK-NEXT: [[TMP12:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 15; CHECK-NEXT: [[IDXPROM1:%.*]] = zext i32 [[TMP12]] to i64 16; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[BUCKETS]], i64 [[IDXPROM1]] 17; CHECK-NEXT: [[TMP13:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 18; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[TMP13]], 1 19; CHECK-NEXT: store i32 [[INC]], ptr [[ARRAYIDX2]], align 4 20; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 21; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]] 22; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_EXIT:%.*]], label [[FOR_BODY]] 23; CHECK: for.exit: 24; CHECK-NEXT: ret void 25; 26entry: 27 br label %for.body 28 29for.body: 30 %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ] 31 %gep.indices = getelementptr inbounds i32, ptr %indices, i64 %iv 32 %l.idx = load i32, ptr %gep.indices, align 4 33 %idxprom1 = zext i32 %l.idx to i64 34 %gep.bucket = getelementptr inbounds i32, ptr %buckets, i64 %idxprom1 35 %l.bucket = load i32, ptr %gep.bucket, align 4 36 %inc = add nsw i32 %l.bucket, 1 37 store i32 %inc, ptr %gep.bucket, align 4 38 %iv.next = add nuw nsw i64 %iv, 1 39 %exitcond = icmp eq i64 %iv.next, %N 40 br i1 %exitcond, label %for.exit, label %for.body 41 42for.exit: 43 ret void 44} 45