200 lines · cpp
1// RUN: %libomp-cxx20-compile-and-run | FileCheck %s --match-full-lines2 3#ifndef HEADER4#define HEADER5 6#include <cstdlib>7#include <cstdarg>8#include <cstdio>9#include <vector>10 11struct Reporter {12 const char *name;13 14 Reporter(const char *name) : name(name) { print("ctor"); }15 16 Reporter() : name("<anon>") { print("ctor"); }17 18 Reporter(const Reporter &that) : name(that.name) { print("copy ctor"); }19 20 Reporter(Reporter &&that) : name(that.name) { print("move ctor"); }21 22 ~Reporter() { print("dtor"); }23 24 const Reporter &operator=(const Reporter &that) {25 print("copy assign");26 this->name = that.name;27 return *this;28 }29 30 const Reporter &operator=(Reporter &&that) {31 print("move assign");32 this->name = that.name;33 return *this;34 }35 36 struct Iterator {37 const Reporter *owner;38 int pos;39 40 Iterator(const Reporter *owner, int pos) : owner(owner), pos(pos) {}41 42 Iterator(const Iterator &that) : owner(that.owner), pos(that.pos) {43 owner->print("iterator copy ctor");44 }45 46 Iterator(Iterator &&that) : owner(that.owner), pos(that.pos) {47 owner->print("iterator move ctor");48 }49 50 ~Iterator() { owner->print("iterator dtor"); }51 52 const Iterator &operator=(const Iterator &that) {53 owner->print("iterator copy assign");54 this->owner = that.owner;55 this->pos = that.pos;56 return *this;57 }58 59 const Iterator &operator=(Iterator &&that) {60 owner->print("iterator move assign");61 this->owner = that.owner;62 this->pos = that.pos;63 return *this;64 }65 66 bool operator==(const Iterator &that) const {67 owner->print("iterator %d == %d", 2 - this->pos, 2 - that.pos);68 return this->pos == that.pos;69 }70 71 bool operator!=(const Iterator &that) const {72 owner->print("iterator %d != %d", 2 - this->pos, 2 - that.pos);73 return this->pos != that.pos;74 }75 76 Iterator &operator++() {77 owner->print("iterator prefix ++");78 pos -= 1;79 return *this;80 }81 82 Iterator operator++(int) {83 owner->print("iterator postfix ++");84 auto result = *this;85 pos -= 1;86 return result;87 }88 89 int operator*() const {90 int result = 2 - pos;91 owner->print("iterator deref: %i", result);92 return result;93 }94 95 size_t operator-(const Iterator &that) const {96 int result = (2 - this->pos) - (2 - that.pos);97 owner->print("iterator distance: %d", result);98 return result;99 }100 101 Iterator operator+(int steps) const {102 owner->print("iterator advance: %i += %i", 2 - this->pos, steps);103 return Iterator(owner, pos - steps);104 }105 106 void print(const char *msg) const { owner->print(msg); }107 };108 109 Iterator begin() const {110 print("begin()");111 return Iterator(this, 2);112 }113 114 Iterator end() const {115 print("end()");116 return Iterator(this, -1);117 }118 119 void print(const char *msg, ...) const {120 va_list args;121 va_start(args, msg);122 printf("[%s] ", name);123 vprintf(msg, args);124 printf("\n");125 va_end(args);126 }127};128 129int main() {130 printf("do\n");131#pragma omp parallel for collapse(2) num_threads(1)132 for (int i = 0; i < 3; ++i)133#pragma omp unroll partial(2)134 for (Reporter c{"init-stmt"}; auto &&v : Reporter("range"))135 printf("i=%d v=%d\n", i, v);136 printf("done\n");137 return EXIT_SUCCESS;138}139 140#endif /* HEADER */141 142// CHECK: do143// CHECK-NEXT: [init-stmt] ctor144// CHECK-NEXT: [range] ctor145// CHECK-NEXT: [range] end()146// CHECK-NEXT: [range] begin()147// CHECK-NEXT: [range] begin()148// CHECK-NEXT: [range] iterator distance: 3149// CHECK-NEXT: [range] iterator advance: 0 += 0150// CHECK-NEXT: [range] iterator move assign151// CHECK-NEXT: [range] iterator deref: 0152// CHECK-NEXT: i=0 v=0153// CHECK-NEXT: [range] iterator dtor154// CHECK-NEXT: [range] iterator advance: 0 += 1155// CHECK-NEXT: [range] iterator move assign156// CHECK-NEXT: [range] iterator deref: 1157// CHECK-NEXT: i=0 v=1158// CHECK-NEXT: [range] iterator dtor159// CHECK-NEXT: [range] iterator advance: 0 += 2160// CHECK-NEXT: [range] iterator move assign161// CHECK-NEXT: [range] iterator deref: 2162// CHECK-NEXT: i=0 v=2163// CHECK-NEXT: [range] iterator dtor164// CHECK-NEXT: [range] iterator advance: 0 += 0165// CHECK-NEXT: [range] iterator move assign166// CHECK-NEXT: [range] iterator deref: 0167// CHECK-NEXT: i=1 v=0168// CHECK-NEXT: [range] iterator dtor169// CHECK-NEXT: [range] iterator advance: 0 += 1170// CHECK-NEXT: [range] iterator move assign171// CHECK-NEXT: [range] iterator deref: 1172// CHECK-NEXT: i=1 v=1173// CHECK-NEXT: [range] iterator dtor174// CHECK-NEXT: [range] iterator advance: 0 += 2175// CHECK-NEXT: [range] iterator move assign176// CHECK-NEXT: [range] iterator deref: 2177// CHECK-NEXT: i=1 v=2178// CHECK-NEXT: [range] iterator dtor179// CHECK-NEXT: [range] iterator advance: 0 += 0180// CHECK-NEXT: [range] iterator move assign181// CHECK-NEXT: [range] iterator deref: 0182// CHECK-NEXT: i=2 v=0183// CHECK-NEXT: [range] iterator dtor184// CHECK-NEXT: [range] iterator advance: 0 += 1185// CHECK-NEXT: [range] iterator move assign186// CHECK-NEXT: [range] iterator deref: 1187// CHECK-NEXT: i=2 v=1188// CHECK-NEXT: [range] iterator dtor189// CHECK-NEXT: [range] iterator advance: 0 += 2190// CHECK-NEXT: [range] iterator move assign191// CHECK-NEXT: [range] iterator deref: 2192// CHECK-NEXT: i=2 v=2193// CHECK-NEXT: [range] iterator dtor194// CHECK-NEXT: [range] iterator dtor195// CHECK-NEXT: [range] iterator dtor196// CHECK-NEXT: [range] iterator dtor197// CHECK-NEXT: [range] dtor198// CHECK-NEXT: [init-stmt] dtor199// CHECK-NEXT: done200