| // Check code generation |
| // RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -fopenmp-version=51 -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 -fopenmp-version=51 -emit-pch -o %t %s |
| // RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -fopenmp-version=51 -include-pch %t -emit-llvm %s -o - | FileCheck %s --check-prefix=IR |
| // expected-no-diagnostics |
| |
| #ifndef HEADER |
| #define HEADER |
| |
| // placeholder for loop body code. |
| extern "C" void body(...) {} |
| |
| |
| // IR-LABEL: @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: %[[DOTCAPTURE_EXPR_2:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTCAPTURE_EXPR_3:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTUNROLLED_IV_I:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTCAPTURE_EXPR_6:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTCAPTURE_EXPR_8:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTCAPTURE_EXPR_12:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTCAPTURE_EXPR_14:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTFLOOR_0_IV__UNROLLED_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__UNROLLED_IV_I18:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTTILE_0_IV__UNROLLED_IV_I:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTUNROLL_INNER_IV_I:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[TMP0:.+]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* @2) |
| // IR-NEXT: store i32 %[[START:.+]], i32* %[[START_ADDR]], align 4 |
| // IR-NEXT: store i32 %[[END:.+]], i32* %[[END_ADDR]], align 4 |
| // IR-NEXT: store i32 %[[STEP:.+]], i32* %[[STEP_ADDR]], align 4 |
| // IR-NEXT: %[[TMP1:.+]] = load i32, i32* %[[START_ADDR]], align 4 |
| // IR-NEXT: store i32 %[[TMP1]], i32* %[[I]], align 4 |
| // IR-NEXT: %[[TMP2:.+]] = load i32, i32* %[[START_ADDR]], align 4 |
| // IR-NEXT: store i32 %[[TMP2]], i32* %[[DOTCAPTURE_EXPR_]], align 4 |
| // IR-NEXT: %[[TMP3:.+]] = load i32, i32* %[[END_ADDR]], align 4 |
| // IR-NEXT: store i32 %[[TMP3]], i32* %[[DOTCAPTURE_EXPR_1]], align 4 |
| // IR-NEXT: %[[TMP4:.+]] = load i32, i32* %[[STEP_ADDR]], align 4 |
| // IR-NEXT: store i32 %[[TMP4]], i32* %[[DOTCAPTURE_EXPR_2]], align 4 |
| // IR-NEXT: %[[TMP5:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_1]], align 4 |
| // IR-NEXT: %[[TMP6:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_]], align 4 |
| // IR-NEXT: %[[SUB:.+]] = sub i32 %[[TMP5]], %[[TMP6]] |
| // IR-NEXT: %[[SUB4:.+]] = sub i32 %[[SUB]], 1 |
| // IR-NEXT: %[[TMP7:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_2]], align 4 |
| // IR-NEXT: %[[ADD:.+]] = add i32 %[[SUB4]], %[[TMP7]] |
| // IR-NEXT: %[[TMP8:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_2]], align 4 |
| // IR-NEXT: %[[DIV:.+]] = udiv i32 %[[ADD]], %[[TMP8]] |
| // IR-NEXT: %[[SUB5:.+]] = sub i32 %[[DIV]], 1 |
| // IR-NEXT: store i32 %[[SUB5]], i32* %[[DOTCAPTURE_EXPR_3]], align 4 |
| // IR-NEXT: store i32 0, i32* %[[DOTUNROLLED_IV_I]], align 4 |
| // IR-NEXT: %[[TMP9:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_3]], align 4 |
| // IR-NEXT: %[[ADD7:.+]] = add i32 %[[TMP9]], 1 |
| // IR-NEXT: store i32 %[[ADD7]], i32* %[[DOTCAPTURE_EXPR_6]], align 4 |
| // IR-NEXT: %[[TMP10:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_6]], align 4 |
| // IR-NEXT: %[[SUB9:.+]] = sub i32 %[[TMP10]], -1 |
| // IR-NEXT: %[[DIV10:.+]] = udiv i32 %[[SUB9]], 2 |
| // IR-NEXT: %[[SUB11:.+]] = sub i32 %[[DIV10]], 1 |
| // IR-NEXT: store i32 %[[SUB11]], i32* %[[DOTCAPTURE_EXPR_8]], align 4 |
| // IR-NEXT: %[[TMP11:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_8]], align 4 |
| // IR-NEXT: %[[ADD13:.+]] = add i32 %[[TMP11]], 1 |
| // IR-NEXT: store i32 %[[ADD13]], i32* %[[DOTCAPTURE_EXPR_12]], align 4 |
| // IR-NEXT: %[[TMP12:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_12]], align 4 |
| // IR-NEXT: %[[SUB15:.+]] = sub i32 %[[TMP12]], -3 |
| // IR-NEXT: %[[DIV16:.+]] = udiv i32 %[[SUB15]], 4 |
| // IR-NEXT: %[[SUB17:.+]] = sub i32 %[[DIV16]], 1 |
| // IR-NEXT: store i32 %[[SUB17]], i32* %[[DOTCAPTURE_EXPR_14]], align 4 |
| // IR-NEXT: store i32 0, i32* %[[DOTFLOOR_0_IV__UNROLLED_IV_I]], align 4 |
| // IR-NEXT: %[[TMP13:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_12]], align 4 |
| // IR-NEXT: %[[CMP:.+]] = icmp ult i32 0, %[[TMP13]] |
| // 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, i32* %[[DOTOMP_LB]], align 4 |
| // IR-NEXT: %[[TMP14:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_14]], align 4 |
| // IR-NEXT: store i32 %[[TMP14]], i32* %[[DOTOMP_UB]], align 4 |
| // IR-NEXT: store i32 1, i32* %[[DOTOMP_STRIDE]], align 4 |
| // IR-NEXT: store i32 0, i32* %[[DOTOMP_IS_LAST]], align 4 |
| // IR-NEXT: call void @__kmpc_for_static_init_4u(%struct.ident_t* @1, i32 %[[TMP0]], i32 34, i32* %[[DOTOMP_IS_LAST]], i32* %[[DOTOMP_LB]], i32* %[[DOTOMP_UB]], i32* %[[DOTOMP_STRIDE]], i32 1, i32 1) |
| // IR-NEXT: %[[TMP15:.+]] = load i32, i32* %[[DOTOMP_UB]], align 4 |
| // IR-NEXT: %[[TMP16:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_14]], align 4 |
| // IR-NEXT: %[[CMP19:.+]] = icmp ugt i32 %[[TMP15]], %[[TMP16]] |
| // IR-NEXT: br i1 %[[CMP19]], label %[[COND_TRUE:.+]], label %[[COND_FALSE:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_TRUE]]: |
| // IR-NEXT: %[[TMP17:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_14]], align 4 |
| // IR-NEXT: br label %[[COND_END:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_FALSE]]: |
| // IR-NEXT: %[[TMP18:.+]] = load i32, i32* %[[DOTOMP_UB]], align 4 |
| // IR-NEXT: br label %[[COND_END]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_END]]: |
| // IR-NEXT: %[[COND:.+]] = phi i32 [ %[[TMP17]], %[[COND_TRUE]] ], [ %[[TMP18]], %[[COND_FALSE]] ] |
| // IR-NEXT: store i32 %[[COND]], i32* %[[DOTOMP_UB]], align 4 |
| // IR-NEXT: %[[TMP19:.+]] = load i32, i32* %[[DOTOMP_LB]], align 4 |
| // IR-NEXT: store i32 %[[TMP19]], i32* %[[DOTOMP_IV]], align 4 |
| // IR-NEXT: br label %[[OMP_INNER_FOR_COND:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[OMP_INNER_FOR_COND]]: |
| // IR-NEXT: %[[TMP20:.+]] = load i32, i32* %[[DOTOMP_IV]], align 4 |
| // IR-NEXT: %[[TMP21:.+]] = load i32, i32* %[[DOTOMP_UB]], align 4 |
| // IR-NEXT: %[[ADD20:.+]] = add i32 %[[TMP21]], 1 |
| // IR-NEXT: %[[CMP21:.+]] = icmp ult i32 %[[TMP20]], %[[ADD20]] |
| // IR-NEXT: br i1 %[[CMP21]], label %[[OMP_INNER_FOR_BODY:.+]], label %[[OMP_INNER_FOR_END:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[OMP_INNER_FOR_BODY]]: |
| // IR-NEXT: %[[TMP22:.+]] = load i32, i32* %[[DOTOMP_IV]], align 4 |
| // IR-NEXT: %[[MUL:.+]] = mul i32 %[[TMP22]], 4 |
| // IR-NEXT: %[[ADD22:.+]] = add i32 0, %[[MUL]] |
| // IR-NEXT: store i32 %[[ADD22]], i32* %[[DOTFLOOR_0_IV__UNROLLED_IV_I18]], align 4 |
| // IR-NEXT: %[[TMP23:.+]] = load i32, i32* %[[DOTFLOOR_0_IV__UNROLLED_IV_I18]], align 4 |
| // IR-NEXT: store i32 %[[TMP23]], i32* %[[DOTTILE_0_IV__UNROLLED_IV_I]], align 4 |
| // IR-NEXT: br label %[[FOR_COND:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_COND]]: |
| // IR-NEXT: %[[TMP24:.+]] = load i32, i32* %[[DOTTILE_0_IV__UNROLLED_IV_I]], align 4 |
| // IR-NEXT: %[[TMP25:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_8]], align 4 |
| // IR-NEXT: %[[ADD23:.+]] = add i32 %[[TMP25]], 1 |
| // IR-NEXT: %[[TMP26:.+]] = load i32, i32* %[[DOTFLOOR_0_IV__UNROLLED_IV_I18]], align 4 |
| // IR-NEXT: %[[ADD24:.+]] = add i32 %[[TMP26]], 4 |
| // IR-NEXT: %[[CMP25:.+]] = icmp ult i32 %[[ADD23]], %[[ADD24]] |
| // IR-NEXT: br i1 %[[CMP25]], label %[[COND_TRUE26:.+]], label %[[COND_FALSE28:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_TRUE26]]: |
| // IR-NEXT: %[[TMP27:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_8]], align 4 |
| // IR-NEXT: %[[ADD27:.+]] = add i32 %[[TMP27]], 1 |
| // IR-NEXT: br label %[[COND_END30:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_FALSE28]]: |
| // IR-NEXT: %[[TMP28:.+]] = load i32, i32* %[[DOTFLOOR_0_IV__UNROLLED_IV_I18]], align 4 |
| // IR-NEXT: %[[ADD29:.+]] = add i32 %[[TMP28]], 4 |
| // IR-NEXT: br label %[[COND_END30]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_END30]]: |
| // IR-NEXT: %[[COND31:.+]] = phi i32 [ %[[ADD27]], %[[COND_TRUE26]] ], [ %[[ADD29]], %[[COND_FALSE28]] ] |
| // IR-NEXT: %[[CMP32:.+]] = icmp ult i32 %[[TMP24]], %[[COND31]] |
| // IR-NEXT: br i1 %[[CMP32]], label %[[FOR_BODY:.+]], label %[[FOR_END45:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_BODY]]: |
| // IR-NEXT: %[[TMP29:.+]] = load i32, i32* %[[DOTTILE_0_IV__UNROLLED_IV_I]], align 4 |
| // IR-NEXT: %[[MUL33:.+]] = mul i32 %[[TMP29]], 2 |
| // IR-NEXT: %[[ADD34:.+]] = add i32 0, %[[MUL33]] |
| // IR-NEXT: store i32 %[[ADD34]], i32* %[[DOTUNROLLED_IV_I]], align 4 |
| // IR-NEXT: %[[TMP30:.+]] = load i32, i32* %[[DOTUNROLLED_IV_I]], align 4 |
| // IR-NEXT: store i32 %[[TMP30]], i32* %[[DOTUNROLL_INNER_IV_I]], align 4 |
| // IR-NEXT: br label %[[FOR_COND35:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_COND35]]: |
| // IR-NEXT: %[[TMP31:.+]] = load i32, i32* %[[DOTUNROLL_INNER_IV_I]], align 4 |
| // IR-NEXT: %[[TMP32:.+]] = load i32, i32* %[[DOTUNROLLED_IV_I]], align 4 |
| // IR-NEXT: %[[ADD36:.+]] = add i32 %[[TMP32]], 2 |
| // IR-NEXT: %[[CMP37:.+]] = icmp ule i32 %[[TMP31]], %[[ADD36]] |
| // IR-NEXT: br i1 %[[CMP37]], label %[[LAND_RHS:.+]], label %[[LAND_END:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[LAND_RHS]]: |
| // IR-NEXT: %[[TMP33:.+]] = load i32, i32* %[[DOTUNROLL_INNER_IV_I]], align 4 |
| // IR-NEXT: %[[TMP34:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_3]], align 4 |
| // IR-NEXT: %[[ADD38:.+]] = add i32 %[[TMP34]], 1 |
| // IR-NEXT: %[[CMP39:.+]] = icmp ule i32 %[[TMP33]], %[[ADD38]] |
| // IR-NEXT: br label %[[LAND_END]] |
| // IR-EMPTY: |
| // IR-NEXT: [[LAND_END]]: |
| // IR-NEXT: %[[TMP35:.+]] = phi i1 [ false, %[[FOR_COND35]] ], [ %[[CMP39]], %[[LAND_RHS]] ] |
| // IR-NEXT: br i1 %[[TMP35]], label %[[FOR_BODY40:.+]], label %[[FOR_END:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_BODY40]]: |
| // IR-NEXT: %[[TMP36:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_]], align 4 |
| // IR-NEXT: %[[TMP37:.+]] = load i32, i32* %[[DOTUNROLL_INNER_IV_I]], align 4 |
| // IR-NEXT: %[[TMP38:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_2]], align 4 |
| // IR-NEXT: %[[MUL41:.+]] = mul i32 %[[TMP37]], %[[TMP38]] |
| // IR-NEXT: %[[ADD42:.+]] = add i32 %[[TMP36]], %[[MUL41]] |
| // IR-NEXT: store i32 %[[ADD42]], i32* %[[I]], align 4 |
| // IR-NEXT: %[[TMP39:.+]] = load i32, i32* %[[START_ADDR]], align 4 |
| // IR-NEXT: %[[TMP40:.+]] = load i32, i32* %[[END_ADDR]], align 4 |
| // IR-NEXT: %[[TMP41:.+]] = load i32, i32* %[[STEP_ADDR]], align 4 |
| // IR-NEXT: %[[TMP42:.+]] = load i32, i32* %[[I]], align 4 |
| // IR-NEXT: call void (...) @body(i32 %[[TMP39]], i32 %[[TMP40]], i32 %[[TMP41]], i32 %[[TMP42]]) |
| // IR-NEXT: br label %[[FOR_INC:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_INC]]: |
| // IR-NEXT: %[[TMP43:.+]] = load i32, i32* %[[DOTUNROLL_INNER_IV_I]], align 4 |
| // IR-NEXT: %[[INC:.+]] = add i32 %[[TMP43]], 1 |
| // IR-NEXT: store i32 %[[INC]], i32* %[[DOTUNROLL_INNER_IV_I]], align 4 |
| // IR-NEXT: br label %[[FOR_COND35]], !llvm.loop ![[LOOP2:[0-9]+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_END]]: |
| // IR-NEXT: br label %[[FOR_INC43:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_INC43]]: |
| // IR-NEXT: %[[TMP44:.+]] = load i32, i32* %[[DOTTILE_0_IV__UNROLLED_IV_I]], align 4 |
| // IR-NEXT: %[[INC44:.+]] = add i32 %[[TMP44]], 1 |
| // IR-NEXT: store i32 %[[INC44]], i32* %[[DOTTILE_0_IV__UNROLLED_IV_I]], align 4 |
| // IR-NEXT: br label %[[FOR_COND]], !llvm.loop ![[LOOP5:[0-9]+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_END45]]: |
| // 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: %[[TMP45:.+]] = load i32, i32* %[[DOTOMP_IV]], align 4 |
| // IR-NEXT: %[[ADD46:.+]] = add i32 %[[TMP45]], 1 |
| // IR-NEXT: store i32 %[[ADD46]], i32* %[[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(%struct.ident_t* @1, i32 %[[TMP0]]) |
| // IR-NEXT: br label %[[OMP_PRECOND_END]] |
| // IR-EMPTY: |
| // IR-NEXT: [[OMP_PRECOND_END]]: |
| // IR-NEXT: call void @__kmpc_barrier(%struct.ident_t* @3, 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) |
| #pragma omp unroll partial |
| for (int i = start; i < end; i+=step) |
| body(start, end, step, i); |
| } |
| |
| #endif /* HEADER */ |
| |
| |
| // IR: ![[LOOP2]] = distinct !{![[LOOP2]], ![[LOOPPROP3:[0-9]+]], ![[LOOPPROP4:[0-9]+]]} |
| // IR: ![[LOOPPROP3]] = !{!"llvm.loop.mustprogress"} |
| // IR: ![[LOOPPROP4]] = !{!"llvm.loop.unroll.count", i32 2} |
| // IR: ![[LOOP5]] = distinct !{![[LOOP5]], ![[LOOPPROP3]]} |
