68 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 32; RUN: opt < %s -passes=loop-vectorize,instcombine -enable-histogram-loop-vectorization -force-vector-width=2 -S | FileCheck %s3 4define void @simple_histogram(ptr noalias %buckets, ptr readonly %indices, i64 %N) {5; CHECK-LABEL: define void @simple_histogram(6; CHECK-SAME: ptr noalias [[BUCKETS:%.*]], ptr readonly [[INDICES:%.*]], i64 [[N:%.*]]) {7; CHECK-NEXT: entry:8; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 29; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[ENTRY:%.*]]10; CHECK: vector.ph:11; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[N]], -212; CHECK-NEXT: br label [[FOR_BODY:%.*]]13; CHECK: vector.body:14; CHECK-NEXT: [[IV:%.*]] = phi i64 [ 0, [[ENTRY]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]15; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds i32, ptr [[INDICES]], i64 [[IV]]16; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x i32>, ptr [[TMP0]], align 417; CHECK-NEXT: [[TMP1:%.*]] = zext <2 x i32> [[WIDE_LOAD]] to <2 x i64>18; CHECK-NEXT: [[TMP2:%.*]] = extractelement <2 x i64> [[TMP1]], i64 019; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x i64> [[TMP1]], i64 120; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds nuw i32, ptr [[BUCKETS]], i64 [[TMP2]]21; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds nuw i32, ptr [[BUCKETS]], i64 [[TMP4]]22; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x ptr> poison, ptr [[TMP3]], i64 023; CHECK-NEXT: [[TMP7:%.*]] = insertelement <2 x ptr> [[TMP6]], ptr [[TMP5]], i64 124; CHECK-NEXT: call void @llvm.experimental.vector.histogram.add.v2p0.i32(<2 x ptr> [[TMP7]], i32 1, <2 x i1> splat (i1 true))25; CHECK-NEXT: [[IV_NEXT]] = add nuw i64 [[IV]], 226; CHECK-NEXT: [[TMP8:%.*]] = icmp eq i64 [[IV_NEXT]], [[N_VEC]]27; CHECK-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[FOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]28; CHECK: middle.block:29; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]30; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]31; CHECK: scalar.ph:32; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY1:%.*]] ]33; CHECK-NEXT: br label [[FOR_BODY1:%.*]]34; CHECK: for.body:35; CHECK-NEXT: [[IV1:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT1:%.*]], [[FOR_BODY1]] ]36; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[INDICES]], i64 [[IV1]]37; CHECK-NEXT: [[TMP12:%.*]] = load i32, ptr [[ARRAYIDX]], align 438; CHECK-NEXT: [[IDXPROM1:%.*]] = zext i32 [[TMP12]] to i6439; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds nuw i32, ptr [[BUCKETS]], i64 [[IDXPROM1]]40; CHECK-NEXT: [[TMP13:%.*]] = load i32, ptr [[ARRAYIDX2]], align 441; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[TMP13]], 142; CHECK-NEXT: store i32 [[INC]], ptr [[ARRAYIDX2]], align 443; CHECK-NEXT: [[IV_NEXT1]] = add nuw nsw i64 [[IV1]], 144; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[IV_NEXT1]], [[N]]45; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_EXIT]], label [[FOR_BODY1]], !llvm.loop [[LOOP3:![0-9]+]]46; CHECK: for.exit:47; CHECK-NEXT: ret void48;49entry:50 br label %for.body51 52for.body:53 %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]54 %gep.indices = getelementptr inbounds i32, ptr %indices, i64 %iv55 %l.idx = load i32, ptr %gep.indices, align 456 %idxprom1 = zext i32 %l.idx to i6457 %gep.bucket = getelementptr inbounds i32, ptr %buckets, i64 %idxprom158 %l.bucket = load i32, ptr %gep.bucket, align 459 %inc = add nsw i32 %l.bucket, 160 store i32 %inc, ptr %gep.bucket, align 461 %iv.next = add nuw nsw i64 %iv, 162 %exitcond = icmp eq i64 %iv.next, %N63 br i1 %exitcond, label %for.exit, label %for.body64 65for.exit:66 ret void67}68