194 lines · cpp
1// Check code generation2// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -emit-llvm %s -o - | FileCheck %s --check-prefix=IR3 4// Check same results after serialization round-trip5// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -emit-pch -o %t %s6// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -include-pch %t -emit-llvm %s -o - | FileCheck %s --check-prefix=IR7// expected-no-diagnostics8 9// The loop trip count used by #pragma omp for depends on code generated10// by #pragma omp file. Check that theses PreInits are emitted before11// the code generated by #pragma omp for.12 13#ifndef HEADER14#define HEADER15 16// placeholder for loop body code.17extern "C" void body(...) {}18 19 20// IR-LABEL: define {{.*}}@func(21// IR-NEXT: [[ENTRY:.*]]:22// IR-NEXT: %[[START_ADDR:.+]] = alloca i32, align 423// IR-NEXT: %[[END_ADDR:.+]] = alloca i32, align 424// IR-NEXT: %[[STEP_ADDR:.+]] = alloca i32, align 425// IR-NEXT: %[[DOTOMP_IV:.+]] = alloca i32, align 426// IR-NEXT: %[[TMP:.+]] = alloca i32, align 427// IR-NEXT: %[[I:.+]] = alloca i32, align 428// IR-NEXT: %[[DOTCAPTURE_EXPR_:.+]] = alloca i32, align 429// IR-NEXT: %[[DOTCAPTURE_EXPR_1:.+]] = alloca i32, align 430// IR-NEXT: %[[DOTNEW_STEP:.+]] = alloca i32, align 431// IR-NEXT: %[[DOTCAPTURE_EXPR_2:.+]] = alloca i32, align 432// IR-NEXT: %[[DOTCAPTURE_EXPR_5:.+]] = alloca i32, align 433// IR-NEXT: %[[DOTCAPTURE_EXPR_7:.+]] = alloca i32, align 434// IR-NEXT: %[[DOTFLOOR_0_IV_I:.+]] = alloca i32, align 435// IR-NEXT: %[[DOTOMP_LB:.+]] = alloca i32, align 436// IR-NEXT: %[[DOTOMP_UB:.+]] = alloca i32, align 437// IR-NEXT: %[[DOTOMP_STRIDE:.+]] = alloca i32, align 438// IR-NEXT: %[[DOTOMP_IS_LAST:.+]] = alloca i32, align 439// IR-NEXT: %[[DOTFLOOR_0_IV_I11:.+]] = alloca i32, align 440// IR-NEXT: %[[DOTTILE_0_IV_I:.+]] = alloca i32, align 441// IR-NEXT: %[[TMP0:.+]] = call i32 @__kmpc_global_thread_num(ptr @[[GLOB2:.+]])42// IR-NEXT: store i32 %[[START:.+]], ptr %[[START_ADDR]], align 443// IR-NEXT: store i32 %[[END:.+]], ptr %[[END_ADDR]], align 444// IR-NEXT: store i32 %[[STEP:.+]], ptr %[[STEP_ADDR]], align 445// IR-NEXT: %[[TMP1:.+]] = load i32, ptr %[[START_ADDR]], align 446// IR-NEXT: store i32 %[[TMP1]], ptr %[[I]], align 447// IR-NEXT: %[[TMP2:.+]] = load i32, ptr %[[START_ADDR]], align 448// IR-NEXT: store i32 %[[TMP2]], ptr %[[DOTCAPTURE_EXPR_]], align 449// IR-NEXT: %[[TMP3:.+]] = load i32, ptr %[[END_ADDR]], align 450// IR-NEXT: store i32 %[[TMP3]], ptr %[[DOTCAPTURE_EXPR_1]], align 451// IR-NEXT: %[[TMP4:.+]] = load i32, ptr %[[STEP_ADDR]], align 452// IR-NEXT: store i32 %[[TMP4]], ptr %[[DOTNEW_STEP]], align 453// IR-NEXT: %[[TMP5:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_1]], align 454// IR-NEXT: %[[TMP6:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_]], align 455// IR-NEXT: %[[SUB:.+]] = sub i32 %[[TMP5]], %[[TMP6]]56// IR-NEXT: %[[SUB3:.+]] = sub i32 %[[SUB]], 157// IR-NEXT: %[[TMP7:.+]] = load i32, ptr %[[DOTNEW_STEP]], align 458// IR-NEXT: %[[ADD:.+]] = add i32 %[[SUB3]], %[[TMP7]]59// IR-NEXT: %[[TMP8:.+]] = load i32, ptr %[[DOTNEW_STEP]], align 460// IR-NEXT: %[[DIV:.+]] = udiv i32 %[[ADD]], %[[TMP8]]61// IR-NEXT: %[[SUB4:.+]] = sub i32 %[[DIV]], 162// IR-NEXT: store i32 %[[SUB4]], ptr %[[DOTCAPTURE_EXPR_2]], align 463// IR-NEXT: %[[TMP9:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_2]], align 464// IR-NEXT: %[[ADD6:.+]] = add i32 %[[TMP9]], 165// IR-NEXT: store i32 %[[ADD6]], ptr %[[DOTCAPTURE_EXPR_5]], align 466// IR-NEXT: %[[TMP10:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_5]], align 467// IR-NEXT: %[[SUB8:.+]] = sub i32 %[[TMP10]], -368// IR-NEXT: %[[DIV9:.+]] = udiv i32 %[[SUB8]], 469// IR-NEXT: %[[SUB10:.+]] = sub i32 %[[DIV9]], 170// IR-NEXT: store i32 %[[SUB10]], ptr %[[DOTCAPTURE_EXPR_7]], align 471// IR-NEXT: store i32 0, ptr %[[DOTFLOOR_0_IV_I]], align 472// IR-NEXT: %[[TMP11:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_5]], align 473// IR-NEXT: %[[CMP:.+]] = icmp ult i32 0, %[[TMP11]]74// IR-NEXT: br i1 %[[CMP]], label %[[OMP_PRECOND_THEN:.+]], label %[[OMP_PRECOND_END:.+]]75// IR-EMPTY:76// IR-NEXT: [[OMP_PRECOND_THEN]]:77// IR-NEXT: store i32 0, ptr %[[DOTOMP_LB]], align 478// IR-NEXT: %[[TMP12:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_7]], align 479// IR-NEXT: store i32 %[[TMP12]], ptr %[[DOTOMP_UB]], align 480// IR-NEXT: store i32 1, ptr %[[DOTOMP_STRIDE]], align 481// IR-NEXT: store i32 0, ptr %[[DOTOMP_IS_LAST]], align 482// IR-NEXT: call void @__kmpc_for_static_init_4u(ptr @[[GLOB1:.+]], i32 %[[TMP0]], i32 34, ptr %[[DOTOMP_IS_LAST]], ptr %[[DOTOMP_LB]], ptr %[[DOTOMP_UB]], ptr %[[DOTOMP_STRIDE]], i32 1, i32 1)83// IR-NEXT: %[[TMP13:.+]] = load i32, ptr %[[DOTOMP_UB]], align 484// IR-NEXT: %[[TMP14:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_7]], align 485// IR-NEXT: %[[CMP12:.+]] = icmp ugt i32 %[[TMP13]], %[[TMP14]]86// IR-NEXT: br i1 %[[CMP12]], label %[[COND_TRUE:.+]], label %[[COND_FALSE:.+]]87// IR-EMPTY:88// IR-NEXT: [[COND_TRUE]]:89// IR-NEXT: %[[TMP15:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_7]], align 490// IR-NEXT: br label %[[COND_END:.+]]91// IR-EMPTY:92// IR-NEXT: [[COND_FALSE]]:93// IR-NEXT: %[[TMP16:.+]] = load i32, ptr %[[DOTOMP_UB]], align 494// IR-NEXT: br label %[[COND_END]]95// IR-EMPTY:96// IR-NEXT: [[COND_END]]:97// IR-NEXT: %[[COND:.+]] = phi i32 [ %[[TMP15]], %[[COND_TRUE]] ], [ %[[TMP16]], %[[COND_FALSE]] ]98// IR-NEXT: store i32 %[[COND]], ptr %[[DOTOMP_UB]], align 499// IR-NEXT: %[[TMP17:.+]] = load i32, ptr %[[DOTOMP_LB]], align 4100// IR-NEXT: store i32 %[[TMP17]], ptr %[[DOTOMP_IV]], align 4101// IR-NEXT: br label %[[OMP_INNER_FOR_COND:.+]]102// IR-EMPTY:103// IR-NEXT: [[OMP_INNER_FOR_COND]]:104// IR-NEXT: %[[TMP18:.+]] = load i32, ptr %[[DOTOMP_IV]], align 4105// IR-NEXT: %[[TMP19:.+]] = load i32, ptr %[[DOTOMP_UB]], align 4106// IR-NEXT: %[[ADD13:.+]] = add i32 %[[TMP19]], 1107// IR-NEXT: %[[CMP14:.+]] = icmp ult i32 %[[TMP18]], %[[ADD13]]108// IR-NEXT: br i1 %[[CMP14]], label %[[OMP_INNER_FOR_BODY:.+]], label %[[OMP_INNER_FOR_END:.+]]109// IR-EMPTY:110// IR-NEXT: [[OMP_INNER_FOR_BODY]]:111// IR-NEXT: %[[TMP20:.+]] = load i32, ptr %[[DOTOMP_IV]], align 4112// IR-NEXT: %[[MUL:.+]] = mul i32 %[[TMP20]], 4113// IR-NEXT: %[[ADD15:.+]] = add i32 0, %[[MUL]]114// IR-NEXT: store i32 %[[ADD15]], ptr %[[DOTFLOOR_0_IV_I11]], align 4115// IR-NEXT: %[[TMP21:.+]] = load i32, ptr %[[DOTFLOOR_0_IV_I11]], align 4116// IR-NEXT: store i32 %[[TMP21]], ptr %[[DOTTILE_0_IV_I]], align 4117// IR-NEXT: br label %[[FOR_COND:.+]]118// IR-EMPTY:119// IR-NEXT: [[FOR_COND]]:120// IR-NEXT: %[[TMP22:.+]] = load i32, ptr %[[DOTTILE_0_IV_I]], align 4121// IR-NEXT: %[[TMP23:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_2]], align 4122// IR-NEXT: %[[ADD16:.+]] = add i32 %[[TMP23]], 1123// IR-NEXT: %[[TMP24:.+]] = load i32, ptr %[[DOTFLOOR_0_IV_I11]], align 4124// IR-NEXT: %[[ADD17:.+]] = add i32 %[[TMP24]], 4125// IR-NEXT: %[[CMP18:.+]] = icmp ult i32 %[[ADD16]], %[[ADD17]]126// IR-NEXT: br i1 %[[CMP18]], label %[[COND_TRUE19:.+]], label %[[COND_FALSE21:.+]]127// IR-EMPTY:128// IR-NEXT: [[COND_TRUE19]]:129// IR-NEXT: %[[TMP25:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_2]], align 4130// IR-NEXT: %[[ADD20:.+]] = add i32 %[[TMP25]], 1131// IR-NEXT: br label %[[COND_END23:.+]]132// IR-EMPTY:133// IR-NEXT: [[COND_FALSE21]]:134// IR-NEXT: %[[TMP26:.+]] = load i32, ptr %[[DOTFLOOR_0_IV_I11]], align 4135// IR-NEXT: %[[ADD22:.+]] = add i32 %[[TMP26]], 4136// IR-NEXT: br label %[[COND_END23]]137// IR-EMPTY:138// IR-NEXT: [[COND_END23]]:139// IR-NEXT: %[[COND24:.+]] = phi i32 [ %[[ADD20]], %[[COND_TRUE19]] ], [ %[[ADD22]], %[[COND_FALSE21]] ]140// IR-NEXT: %[[CMP25:.+]] = icmp ult i32 %[[TMP22]], %[[COND24]]141// IR-NEXT: br i1 %[[CMP25]], label %[[FOR_BODY:.+]], label %[[FOR_END:.+]]142// IR-EMPTY:143// IR-NEXT: [[FOR_BODY]]:144// IR-NEXT: %[[TMP27:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_]], align 4145// IR-NEXT: %[[TMP28:.+]] = load i32, ptr %[[DOTTILE_0_IV_I]], align 4146// IR-NEXT: %[[TMP29:.+]] = load i32, ptr %[[DOTNEW_STEP]], align 4147// IR-NEXT: %[[MUL26:.+]] = mul i32 %[[TMP28]], %[[TMP29]]148// IR-NEXT: %[[ADD27:.+]] = add i32 %[[TMP27]], %[[MUL26]]149// IR-NEXT: store i32 %[[ADD27]], ptr %[[I]], align 4150// IR-NEXT: %[[TMP30:.+]] = load i32, ptr %[[START_ADDR]], align 4151// IR-NEXT: %[[TMP31:.+]] = load i32, ptr %[[END_ADDR]], align 4152// IR-NEXT: %[[TMP32:.+]] = load i32, ptr %[[STEP_ADDR]], align 4153// IR-NEXT: %[[TMP33:.+]] = load i32, ptr %[[I]], align 4154// IR-NEXT: call void (...) @body(i32 noundef %[[TMP30]], i32 noundef %[[TMP31]], i32 noundef %[[TMP32]], i32 noundef %[[TMP33]])155// IR-NEXT: br label %[[FOR_INC:.+]]156// IR-EMPTY:157// IR-NEXT: [[FOR_INC]]:158// IR-NEXT: %[[TMP34:.+]] = load i32, ptr %[[DOTTILE_0_IV_I]], align 4159// IR-NEXT: %[[INC:.+]] = add i32 %[[TMP34]], 1160// IR-NEXT: store i32 %[[INC]], ptr %[[DOTTILE_0_IV_I]], align 4161// IR-NEXT: br label %[[FOR_COND]], !llvm.loop ![[LOOP3:[0-9]+]]162// IR-EMPTY:163// IR-NEXT: [[FOR_END]]:164// IR-NEXT: br label %[[OMP_BODY_CONTINUE:.+]]165// IR-EMPTY:166// IR-NEXT: [[OMP_BODY_CONTINUE]]:167// IR-NEXT: br label %[[OMP_INNER_FOR_INC:.+]]168// IR-EMPTY:169// IR-NEXT: [[OMP_INNER_FOR_INC]]:170// IR-NEXT: %[[TMP35:.+]] = load i32, ptr %[[DOTOMP_IV]], align 4171// IR-NEXT: %[[ADD28:.+]] = add i32 %[[TMP35]], 1172// IR-NEXT: store i32 %[[ADD28]], ptr %[[DOTOMP_IV]], align 4173// IR-NEXT: br label %[[OMP_INNER_FOR_COND]]174// IR-EMPTY:175// IR-NEXT: [[OMP_INNER_FOR_END]]:176// IR-NEXT: br label %[[OMP_LOOP_EXIT:.+]]177// IR-EMPTY:178// IR-NEXT: [[OMP_LOOP_EXIT]]:179// IR-NEXT: call void @__kmpc_for_static_fini(ptr @[[GLOB1]], i32 %[[TMP0]])180// IR-NEXT: br label %[[OMP_PRECOND_END]]181// IR-EMPTY:182// IR-NEXT: [[OMP_PRECOND_END]]:183// IR-NEXT: call void @__kmpc_barrier(ptr @[[GLOB3:.+]], i32 %[[TMP0]])184// IR-NEXT: ret void185// IR-NEXT: }186extern "C" void func(int start, int end, int step) {187#pragma omp for188#pragma omp tile sizes(4)189 for (int i = start; i < end; i += step)190 body(start, end, step, i);191}192 193#endif /* HEADER */194