// Check code generation // RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -emit-llvm %s -o - | FileCheck %s --check-prefix=IR // Check same results after serialization round-trip // RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -emit-pch -o %t %s // RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -include-pch %t -emit-llvm %s -o - | FileCheck %s --check-prefix=IR // expected-no-diagnostics // The loop trip count used by #pragma omp for depends on code generated // by #pragma omp file. Check that theses PreInits are emitted before // the code generated by #pragma omp for. #ifndef HEADER #define HEADER // placeholder for loop body code. extern "C" void body(...) {} // IR-LABEL: define {{.*}}@func( // IR-NEXT: [[ENTRY:.*]]: // IR-NEXT: %[[START_ADDR:.+]] = alloca i32, align 4 // IR-NEXT: %[[END_ADDR:.+]] = alloca i32, align 4 // IR-NEXT: %[[STEP_ADDR:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTOMP_IV:.+]] = alloca i32, align 4 // IR-NEXT: %[[TMP:.+]] = alloca i32, align 4 // IR-NEXT: %[[I:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTCAPTURE_EXPR_:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTCAPTURE_EXPR_1:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTNEW_STEP:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTCAPTURE_EXPR_2:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTCAPTURE_EXPR_5:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTCAPTURE_EXPR_7:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTFLOOR_0_IV_I:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTOMP_LB:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTOMP_UB:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTOMP_STRIDE:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTOMP_IS_LAST:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTFLOOR_0_IV_I11:.+]] = alloca i32, align 4 // IR-NEXT: %[[DOTTILE_0_IV_I:.+]] = alloca i32, align 4 // IR-NEXT: %[[TMP0:.+]] = call i32 @__kmpc_global_thread_num(ptr @[[GLOB2:.+]]) // IR-NEXT: store i32 %[[START:.+]], ptr %[[START_ADDR]], align 4 // IR-NEXT: store i32 %[[END:.+]], ptr %[[END_ADDR]], align 4 // IR-NEXT: store i32 %[[STEP:.+]], ptr %[[STEP_ADDR]], align 4 // IR-NEXT: %[[TMP1:.+]] = load i32, ptr %[[START_ADDR]], align 4 // IR-NEXT: store i32 %[[TMP1]], ptr %[[I]], align 4 // IR-NEXT: %[[TMP2:.+]] = load i32, ptr %[[START_ADDR]], align 4 // IR-NEXT: store i32 %[[TMP2]], ptr %[[DOTCAPTURE_EXPR_]], align 4 // IR-NEXT: %[[TMP3:.+]] = load i32, ptr %[[END_ADDR]], align 4 // IR-NEXT: store i32 %[[TMP3]], ptr %[[DOTCAPTURE_EXPR_1]], align 4 // IR-NEXT: %[[TMP4:.+]] = load i32, ptr %[[STEP_ADDR]], align 4 // IR-NEXT: store i32 %[[TMP4]], ptr %[[DOTNEW_STEP]], align 4 // IR-NEXT: %[[TMP5:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_1]], align 4 // IR-NEXT: %[[TMP6:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_]], align 4 // IR-NEXT: %[[SUB:.+]] = sub i32 %[[TMP5]], %[[TMP6]] // IR-NEXT: %[[SUB3:.+]] = sub i32 %[[SUB]], 1 // IR-NEXT: %[[TMP7:.+]] = load i32, ptr %[[DOTNEW_STEP]], align 4 // IR-NEXT: %[[ADD:.+]] = add i32 %[[SUB3]], %[[TMP7]] // IR-NEXT: %[[TMP8:.+]] = load i32, ptr %[[DOTNEW_STEP]], align 4 // IR-NEXT: %[[DIV:.+]] = udiv i32 %[[ADD]], %[[TMP8]] // IR-NEXT: %[[SUB4:.+]] = sub i32 %[[DIV]], 1 // IR-NEXT: store i32 %[[SUB4]], ptr %[[DOTCAPTURE_EXPR_2]], align 4 // IR-NEXT: %[[TMP9:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_2]], align 4 // IR-NEXT: %[[ADD6:.+]] = add i32 %[[TMP9]], 1 // IR-NEXT: store i32 %[[ADD6]], ptr %[[DOTCAPTURE_EXPR_5]], align 4 // IR-NEXT: %[[TMP10:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_5]], align 4 // IR-NEXT: %[[SUB8:.+]] = sub i32 %[[TMP10]], -3 // IR-NEXT: %[[DIV9:.+]] = udiv i32 %[[SUB8]], 4 // IR-NEXT: %[[SUB10:.+]] = sub i32 %[[DIV9]], 1 // IR-NEXT: store i32 %[[SUB10]], ptr %[[DOTCAPTURE_EXPR_7]], align 4 // IR-NEXT: store i32 0, ptr %[[DOTFLOOR_0_IV_I]], align 4 // IR-NEXT: %[[TMP11:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_5]], align 4 // IR-NEXT: %[[CMP:.+]] = icmp ult i32 0, %[[TMP11]] // IR-NEXT: br i1 %[[CMP]], label %[[OMP_PRECOND_THEN:.+]], label %[[OMP_PRECOND_END:.+]] // IR-EMPTY: // IR-NEXT: [[OMP_PRECOND_THEN]]: // IR-NEXT: store i32 0, ptr %[[DOTOMP_LB]], align 4 // IR-NEXT: %[[TMP12:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_7]], align 4 // IR-NEXT: store i32 %[[TMP12]], ptr %[[DOTOMP_UB]], align 4 // IR-NEXT: store i32 1, ptr %[[DOTOMP_STRIDE]], align 4 // IR-NEXT: store i32 0, ptr %[[DOTOMP_IS_LAST]], align 4 // 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) // IR-NEXT: %[[TMP13:.+]] = load i32, ptr %[[DOTOMP_UB]], align 4 // IR-NEXT: %[[TMP14:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_7]], align 4 // IR-NEXT: %[[CMP12:.+]] = icmp ugt i32 %[[TMP13]], %[[TMP14]] // IR-NEXT: br i1 %[[CMP12]], label %[[COND_TRUE:.+]], label %[[COND_FALSE:.+]] // IR-EMPTY: // IR-NEXT: [[COND_TRUE]]: // IR-NEXT: %[[TMP15:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_7]], align 4 // IR-NEXT: br label %[[COND_END:.+]] // IR-EMPTY: // IR-NEXT: [[COND_FALSE]]: // IR-NEXT: %[[TMP16:.+]] = load i32, ptr %[[DOTOMP_UB]], align 4 // IR-NEXT: br label %[[COND_END]] // IR-EMPTY: // IR-NEXT: [[COND_END]]: // IR-NEXT: %[[COND:.+]] = phi i32 [ %[[TMP15]], %[[COND_TRUE]] ], [ %[[TMP16]], %[[COND_FALSE]] ] // IR-NEXT: store i32 %[[COND]], ptr %[[DOTOMP_UB]], align 4 // IR-NEXT: %[[TMP17:.+]] = load i32, ptr %[[DOTOMP_LB]], align 4 // IR-NEXT: store i32 %[[TMP17]], ptr %[[DOTOMP_IV]], align 4 // IR-NEXT: br label %[[OMP_INNER_FOR_COND:.+]] // IR-EMPTY: // IR-NEXT: [[OMP_INNER_FOR_COND]]: // IR-NEXT: %[[TMP18:.+]] = load i32, ptr %[[DOTOMP_IV]], align 4 // IR-NEXT: %[[TMP19:.+]] = load i32, ptr %[[DOTOMP_UB]], align 4 // IR-NEXT: %[[ADD13:.+]] = add i32 %[[TMP19]], 1 // IR-NEXT: %[[CMP14:.+]] = icmp ult i32 %[[TMP18]], %[[ADD13]] // IR-NEXT: br i1 %[[CMP14]], label %[[OMP_INNER_FOR_BODY:.+]], label %[[OMP_INNER_FOR_END:.+]] // IR-EMPTY: // IR-NEXT: [[OMP_INNER_FOR_BODY]]: // IR-NEXT: %[[TMP20:.+]] = load i32, ptr %[[DOTOMP_IV]], align 4 // IR-NEXT: %[[MUL:.+]] = mul i32 %[[TMP20]], 4 // IR-NEXT: %[[ADD15:.+]] = add i32 0, %[[MUL]] // IR-NEXT: store i32 %[[ADD15]], ptr %[[DOTFLOOR_0_IV_I11]], align 4 // IR-NEXT: %[[TMP21:.+]] = load i32, ptr %[[DOTFLOOR_0_IV_I11]], align 4 // IR-NEXT: store i32 %[[TMP21]], ptr %[[DOTTILE_0_IV_I]], align 4 // IR-NEXT: br label %[[FOR_COND:.+]] // IR-EMPTY: // IR-NEXT: [[FOR_COND]]: // IR-NEXT: %[[TMP22:.+]] = load i32, ptr %[[DOTTILE_0_IV_I]], align 4 // IR-NEXT: %[[TMP23:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_2]], align 4 // IR-NEXT: %[[ADD16:.+]] = add i32 %[[TMP23]], 1 // IR-NEXT: %[[TMP24:.+]] = load i32, ptr %[[DOTFLOOR_0_IV_I11]], align 4 // IR-NEXT: %[[ADD17:.+]] = add i32 %[[TMP24]], 4 // IR-NEXT: %[[CMP18:.+]] = icmp ult i32 %[[ADD16]], %[[ADD17]] // IR-NEXT: br i1 %[[CMP18]], label %[[COND_TRUE19:.+]], label %[[COND_FALSE21:.+]] // IR-EMPTY: // IR-NEXT: [[COND_TRUE19]]: // IR-NEXT: %[[TMP25:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_2]], align 4 // IR-NEXT: %[[ADD20:.+]] = add i32 %[[TMP25]], 1 // IR-NEXT: br label %[[COND_END23:.+]] // IR-EMPTY: // IR-NEXT: [[COND_FALSE21]]: // IR-NEXT: %[[TMP26:.+]] = load i32, ptr %[[DOTFLOOR_0_IV_I11]], align 4 // IR-NEXT: %[[ADD22:.+]] = add i32 %[[TMP26]], 4 // IR-NEXT: br label %[[COND_END23]] // IR-EMPTY: // IR-NEXT: [[COND_END23]]: // IR-NEXT: %[[COND24:.+]] = phi i32 [ %[[ADD20]], %[[COND_TRUE19]] ], [ %[[ADD22]], %[[COND_FALSE21]] ] // IR-NEXT: %[[CMP25:.+]] = icmp ult i32 %[[TMP22]], %[[COND24]] // IR-NEXT: br i1 %[[CMP25]], label %[[FOR_BODY:.+]], label %[[FOR_END:.+]] // IR-EMPTY: // IR-NEXT: [[FOR_BODY]]: // IR-NEXT: %[[TMP27:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_]], align 4 // IR-NEXT: %[[TMP28:.+]] = load i32, ptr %[[DOTTILE_0_IV_I]], align 4 // IR-NEXT: %[[TMP29:.+]] = load i32, ptr %[[DOTNEW_STEP]], align 4 // IR-NEXT: %[[MUL26:.+]] = mul i32 %[[TMP28]], %[[TMP29]] // IR-NEXT: %[[ADD27:.+]] = add i32 %[[TMP27]], %[[MUL26]] // IR-NEXT: store i32 %[[ADD27]], ptr %[[I]], align 4 // IR-NEXT: %[[TMP30:.+]] = load i32, ptr %[[START_ADDR]], align 4 // IR-NEXT: %[[TMP31:.+]] = load i32, ptr %[[END_ADDR]], align 4 // IR-NEXT: %[[TMP32:.+]] = load i32, ptr %[[STEP_ADDR]], align 4 // IR-NEXT: %[[TMP33:.+]] = load i32, ptr %[[I]], align 4 // IR-NEXT: call void (...) @body(i32 noundef %[[TMP30]], i32 noundef %[[TMP31]], i32 noundef %[[TMP32]], i32 noundef %[[TMP33]]) // IR-NEXT: br label %[[FOR_INC:.+]] // IR-EMPTY: // IR-NEXT: [[FOR_INC]]: // IR-NEXT: %[[TMP34:.+]] = load i32, ptr %[[DOTTILE_0_IV_I]], align 4 // IR-NEXT: %[[INC:.+]] = add i32 %[[TMP34]], 1 // IR-NEXT: store i32 %[[INC]], ptr %[[DOTTILE_0_IV_I]], align 4 // IR-NEXT: br label %[[FOR_COND]], !llvm.loop ![[LOOP3:[0-9]+]] // IR-EMPTY: // IR-NEXT: [[FOR_END]]: // IR-NEXT: br label %[[OMP_BODY_CONTINUE:.+]] // IR-EMPTY: // IR-NEXT: [[OMP_BODY_CONTINUE]]: // IR-NEXT: br label %[[OMP_INNER_FOR_INC:.+]] // IR-EMPTY: // IR-NEXT: [[OMP_INNER_FOR_INC]]: // IR-NEXT: %[[TMP35:.+]] = load i32, ptr %[[DOTOMP_IV]], align 4 // IR-NEXT: %[[ADD28:.+]] = add i32 %[[TMP35]], 1 // IR-NEXT: store i32 %[[ADD28]], ptr %[[DOTOMP_IV]], align 4 // IR-NEXT: br label %[[OMP_INNER_FOR_COND]] // IR-EMPTY: // IR-NEXT: [[OMP_INNER_FOR_END]]: // IR-NEXT: br label %[[OMP_LOOP_EXIT:.+]] // IR-EMPTY: // IR-NEXT: [[OMP_LOOP_EXIT]]: // IR-NEXT: call void @__kmpc_for_static_fini(ptr @[[GLOB1]], i32 %[[TMP0]]) // IR-NEXT: br label %[[OMP_PRECOND_END]] // IR-EMPTY: // IR-NEXT: [[OMP_PRECOND_END]]: // IR-NEXT: call void @__kmpc_barrier(ptr @[[GLOB3:.+]], i32 %[[TMP0]]) // IR-NEXT: ret void // IR-NEXT: } extern "C" void func(int start, int end, int step) { #pragma omp for #pragma omp tile sizes(4) for (int i = start; i < end; i += step) body(start, end, step, i); } #endif /* HEADER */