40 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s2 3extern "C" void followup_inner(int n, int *x) {4#pragma unroll_and_jam(4)5 for(int j = 0; j < n; j++) {6#pragma clang loop pipeline_initiation_interval(10)7#pragma clang loop unroll_count(4)8#pragma clang loop vectorize(assume_safety)9#pragma clang loop distribute(enable)10 for(int i = 0; i < n; i++)11 x[j+i*n] = 10;12 13 }14}15 16 17// CHECK-LABEL: define{{.*}} void @followup_inner18// CHECK: br label %for.cond1, !llvm.loop ![[INNERLOOP_3:[0-9]+]]19// CHECK: br label %for.cond, !llvm.loop ![[OUTERLOOP_9:[0-9]+]]20 21// CHECK-DAG: ![[ACCESSGROUP_2:[0-9]+]] = distinct !{}22 23// CHECK-DAG: ![[INNERLOOP_3]] = distinct !{![[INNERLOOP_3]], ![[PARALLEL_ACCESSES_4:[0-9]+]], ![[DISTRIBUTE_5:[0-9]+]], ![[DISTRIBUTE_FOLLOWUP_6:[0-9]+]]}24// CHECK-DAG: ![[PARALLEL_ACCESSES_4]] = !{!"llvm.loop.parallel_accesses", ![[ACCESSGROUP_2]]}25// CHECK-DAG: ![[DISTRIBUTE_5]] = !{!"llvm.loop.distribute.enable", i1 true}26 27// CHECK-DAG: ![[DISTRIBUTE_FOLLOWUP_6]] = !{!"llvm.loop.distribute.followup_all", ![[PARALLEL_ACCESSES_4]], ![[VECTORIZE_8:[0-9]+]]}28// CHECK-DAG: ![[VECTORIZE_8]] = !{!"llvm.loop.vectorize.enable", i1 true}29 30// CHECK-DAG: ![[OUTERLOOP_9]] = distinct !{![[OUTERLOOP_9]], [[MP:![0-9]+]], ![[UNROLLANDJAM_COUNT_10:[0-9]+]], ![[UNROLLANDJAM_FOLLOWUPINNER_11:[0-9]+]]}31// CHECK-DAG: ![[UNROLLANDJAM_COUNT_10]] = !{!"llvm.loop.unroll_and_jam.count", i32 4}32 33// CHECK-DAG: ![[UNROLLANDJAM_FOLLOWUPINNER_11]] = !{!"llvm.loop.unroll_and_jam.followup_inner", ![[PARALLEL_ACCESSES_4]], ![[ISVECTORIZED_13:[0-9]+]], ![[UNROLL_COUNT_13:[0-9]+]], ![[UNROLL_FOLLOWUP_14:[0-9]+]]}34// CHECK-DAG: ![[ISVECTORIZED_13]] = !{!"llvm.loop.isvectorized"}35// CHECK-DAG: ![[UNROLL_COUNT_13]] = !{!"llvm.loop.unroll.count", i32 4}36 37// CHECK-DAG: ![[UNROLL_FOLLOWUP_14]] = !{!"llvm.loop.unroll.followup_all", ![[PARALLEL_ACCESSES_4]], ![[ISVECTORIZED_13]], ![[UNROLL_DISABLE_16:[0-9]+]], ![[PIPELINE_17:[0-9]+]]}38// CHECK-DAG: ![[UNROLL_DISABLE_16]] = !{!"llvm.loop.unroll.disable"}39// CHECK-DAG: ![[PIPELINE_17]] = !{!"llvm.loop.pipeline.initiationinterval", i32 10}40