| // 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 |
| |
| // Account for multiple transformations of a loop before consumed 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: %[[DOTFLOOR_0_IV_I:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTCAPTURE_EXPR_5:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTCAPTURE_EXPR_7:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTCAPTURE_EXPR_11:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTCAPTURE_EXPR_13:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTFLOOR_0_IV__FLOOR_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__FLOOR_0_IV_I17:.+]] = alloca i32, align 4 |
| // IR-NEXT: %[[DOTTILE_0_IV__FLOOR_0_IV_I:.+]] = 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: store i32 0, ptr %[[DOTFLOOR_0_IV_I]], 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: %[[TMP11:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_7]], align 4 |
| // IR-NEXT: %[[ADD12:.+]] = add i32 %[[TMP11]], 1 |
| // IR-NEXT: store i32 %[[ADD12]], ptr %[[DOTCAPTURE_EXPR_11]], align 4 |
| // IR-NEXT: %[[TMP12:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_11]], align 4 |
| // IR-NEXT: %[[SUB14:.+]] = sub i32 %[[TMP12]], -2 |
| // IR-NEXT: %[[DIV15:.+]] = udiv i32 %[[SUB14]], 3 |
| // IR-NEXT: %[[SUB16:.+]] = sub i32 %[[DIV15]], 1 |
| // IR-NEXT: store i32 %[[SUB16]], ptr %[[DOTCAPTURE_EXPR_13]], align 4 |
| // IR-NEXT: store i32 0, ptr %[[DOTFLOOR_0_IV__FLOOR_0_IV_I]], align 4 |
| // IR-NEXT: %[[TMP13:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_11]], 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, ptr %[[DOTOMP_LB]], align 4 |
| // IR-NEXT: %[[TMP14:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_13]], align 4 |
| // IR-NEXT: store i32 %[[TMP14]], 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: %[[TMP15:.+]] = load i32, ptr %[[DOTOMP_UB]], align 4 |
| // IR-NEXT: %[[TMP16:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_13]], align 4 |
| // IR-NEXT: %[[CMP18:.+]] = icmp ugt i32 %[[TMP15]], %[[TMP16]] |
| // IR-NEXT: br i1 %[[CMP18]], label %[[COND_TRUE:.+]], label %[[COND_FALSE:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_TRUE]]: |
| // IR-NEXT: %[[TMP17:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_13]], align 4 |
| // IR-NEXT: br label %[[COND_END:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_FALSE]]: |
| // IR-NEXT: %[[TMP18:.+]] = load i32, ptr %[[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]], ptr %[[DOTOMP_UB]], align 4 |
| // IR-NEXT: %[[TMP19:.+]] = load i32, ptr %[[DOTOMP_LB]], align 4 |
| // IR-NEXT: store i32 %[[TMP19]], ptr %[[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, ptr %[[DOTOMP_IV]], align 4 |
| // IR-NEXT: %[[TMP21:.+]] = load i32, ptr %[[DOTOMP_UB]], align 4 |
| // IR-NEXT: %[[ADD19:.+]] = add i32 %[[TMP21]], 1 |
| // IR-NEXT: %[[CMP20:.+]] = icmp ult i32 %[[TMP20]], %[[ADD19]] |
| // IR-NEXT: br i1 %[[CMP20]], label %[[OMP_INNER_FOR_BODY:.+]], label %[[OMP_INNER_FOR_END:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[OMP_INNER_FOR_BODY]]: |
| // IR-NEXT: %[[TMP22:.+]] = load i32, ptr %[[DOTOMP_IV]], align 4 |
| // IR-NEXT: %[[MUL:.+]] = mul i32 %[[TMP22]], 3 |
| // IR-NEXT: %[[ADD21:.+]] = add i32 0, %[[MUL]] |
| // IR-NEXT: store i32 %[[ADD21]], ptr %[[DOTFLOOR_0_IV__FLOOR_0_IV_I17]], align 4 |
| // IR-NEXT: %[[TMP23:.+]] = load i32, ptr %[[DOTFLOOR_0_IV__FLOOR_0_IV_I17]], align 4 |
| // IR-NEXT: store i32 %[[TMP23]], ptr %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4 |
| // IR-NEXT: br label %[[FOR_COND:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_COND]]: |
| // IR-NEXT: %[[TMP24:.+]] = load i32, ptr %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4 |
| // IR-NEXT: %[[TMP25:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_7]], align 4 |
| // IR-NEXT: %[[ADD22:.+]] = add i32 %[[TMP25]], 1 |
| // IR-NEXT: %[[TMP26:.+]] = load i32, ptr %[[DOTFLOOR_0_IV__FLOOR_0_IV_I17]], align 4 |
| // IR-NEXT: %[[ADD23:.+]] = add i32 %[[TMP26]], 3 |
| // IR-NEXT: %[[CMP24:.+]] = icmp ult i32 %[[ADD22]], %[[ADD23]] |
| // IR-NEXT: br i1 %[[CMP24]], label %[[COND_TRUE25:.+]], label %[[COND_FALSE27:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_TRUE25]]: |
| // IR-NEXT: %[[TMP27:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_7]], align 4 |
| // IR-NEXT: %[[ADD26:.+]] = add i32 %[[TMP27]], 1 |
| // IR-NEXT: br label %[[COND_END29:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_FALSE27]]: |
| // IR-NEXT: %[[TMP28:.+]] = load i32, ptr %[[DOTFLOOR_0_IV__FLOOR_0_IV_I17]], align 4 |
| // IR-NEXT: %[[ADD28:.+]] = add i32 %[[TMP28]], 3 |
| // IR-NEXT: br label %[[COND_END29]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_END29]]: |
| // IR-NEXT: %[[COND30:.+]] = phi i32 [ %[[ADD26]], %[[COND_TRUE25]] ], [ %[[ADD28]], %[[COND_FALSE27]] ] |
| // IR-NEXT: %[[CMP31:.+]] = icmp ult i32 %[[TMP24]], %[[COND30]] |
| // IR-NEXT: br i1 %[[CMP31]], label %[[FOR_BODY:.+]], label %[[FOR_END50:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_BODY]]: |
| // IR-NEXT: %[[TMP29:.+]] = load i32, ptr %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4 |
| // IR-NEXT: %[[MUL32:.+]] = mul i32 %[[TMP29]], 4 |
| // IR-NEXT: %[[ADD33:.+]] = add i32 0, %[[MUL32]] |
| // IR-NEXT: store i32 %[[ADD33]], ptr %[[DOTFLOOR_0_IV_I]], align 4 |
| // IR-NEXT: %[[TMP30:.+]] = load i32, ptr %[[DOTFLOOR_0_IV_I]], align 4 |
| // IR-NEXT: store i32 %[[TMP30]], ptr %[[DOTTILE_0_IV_I]], align 4 |
| // IR-NEXT: br label %[[FOR_COND34:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_COND34]]: |
| // IR-NEXT: %[[TMP31:.+]] = load i32, ptr %[[DOTTILE_0_IV_I]], align 4 |
| // IR-NEXT: %[[TMP32:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_2]], align 4 |
| // IR-NEXT: %[[ADD35:.+]] = add i32 %[[TMP32]], 1 |
| // IR-NEXT: %[[TMP33:.+]] = load i32, ptr %[[DOTFLOOR_0_IV_I]], align 4 |
| // IR-NEXT: %[[ADD36:.+]] = add i32 %[[TMP33]], 4 |
| // IR-NEXT: %[[CMP37:.+]] = icmp ult i32 %[[ADD35]], %[[ADD36]] |
| // IR-NEXT: br i1 %[[CMP37]], label %[[COND_TRUE38:.+]], label %[[COND_FALSE40:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_TRUE38]]: |
| // IR-NEXT: %[[TMP34:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_2]], align 4 |
| // IR-NEXT: %[[ADD39:.+]] = add i32 %[[TMP34]], 1 |
| // IR-NEXT: br label %[[COND_END42:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_FALSE40]]: |
| // IR-NEXT: %[[TMP35:.+]] = load i32, ptr %[[DOTFLOOR_0_IV_I]], align 4 |
| // IR-NEXT: %[[ADD41:.+]] = add i32 %[[TMP35]], 4 |
| // IR-NEXT: br label %[[COND_END42]] |
| // IR-EMPTY: |
| // IR-NEXT: [[COND_END42]]: |
| // IR-NEXT: %[[COND43:.+]] = phi i32 [ %[[ADD39]], %[[COND_TRUE38]] ], [ %[[ADD41]], %[[COND_FALSE40]] ] |
| // IR-NEXT: %[[CMP44:.+]] = icmp ult i32 %[[TMP31]], %[[COND43]] |
| // IR-NEXT: br i1 %[[CMP44]], label %[[FOR_BODY45:.+]], label %[[FOR_END:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_BODY45]]: |
| // IR-NEXT: %[[TMP36:.+]] = load i32, ptr %[[DOTCAPTURE_EXPR_]], align 4 |
| // IR-NEXT: %[[TMP37:.+]] = load i32, ptr %[[DOTTILE_0_IV_I]], align 4 |
| // IR-NEXT: %[[TMP38:.+]] = load i32, ptr %[[DOTNEW_STEP]], align 4 |
| // IR-NEXT: %[[MUL46:.+]] = mul i32 %[[TMP37]], %[[TMP38]] |
| // IR-NEXT: %[[ADD47:.+]] = add i32 %[[TMP36]], %[[MUL46]] |
| // IR-NEXT: store i32 %[[ADD47]], ptr %[[I]], align 4 |
| // IR-NEXT: %[[TMP39:.+]] = load i32, ptr %[[START_ADDR]], align 4 |
| // IR-NEXT: %[[TMP40:.+]] = load i32, ptr %[[END_ADDR]], align 4 |
| // IR-NEXT: %[[TMP41:.+]] = load i32, ptr %[[STEP_ADDR]], align 4 |
| // IR-NEXT: %[[TMP42:.+]] = load i32, ptr %[[I]], align 4 |
| // IR-NEXT: call void (...) @body(i32 noundef %[[TMP39]], i32 noundef %[[TMP40]], i32 noundef %[[TMP41]], i32 noundef %[[TMP42]]) |
| // IR-NEXT: br label %[[FOR_INC:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_INC]]: |
| // IR-NEXT: %[[TMP43:.+]] = load i32, ptr %[[DOTTILE_0_IV_I]], align 4 |
| // IR-NEXT: %[[INC:.+]] = add i32 %[[TMP43]], 1 |
| // IR-NEXT: store i32 %[[INC]], ptr %[[DOTTILE_0_IV_I]], align 4 |
| // IR-NEXT: br label %[[FOR_COND34]], !llvm.loop ![[LOOP3:[0-9]+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_END]]: |
| // IR-NEXT: br label %[[FOR_INC48:.+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_INC48]]: |
| // IR-NEXT: %[[TMP44:.+]] = load i32, ptr %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4 |
| // IR-NEXT: %[[INC49:.+]] = add i32 %[[TMP44]], 1 |
| // IR-NEXT: store i32 %[[INC49]], ptr %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4 |
| // IR-NEXT: br label %[[FOR_COND]], !llvm.loop ![[LOOP5:[0-9]+]] |
| // IR-EMPTY: |
| // IR-NEXT: [[FOR_END50]]: |
| // 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, ptr %[[DOTOMP_IV]], align 4 |
| // IR-NEXT: %[[ADD51:.+]] = add i32 %[[TMP45]], 1 |
| // IR-NEXT: store i32 %[[ADD51]], 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(3) |
| #pragma omp tile sizes(4) |
| for (int i = start; i < end; i += step) |
| body(start, end, step, i); |
| } |
| |
| #endif /* HEADER */ |
| |
| // IR: ![[META0:[0-9]+]] = !{i32 1, !"wchar_size", i32 4} |
| // IR: ![[META1:[0-9]+]] = !{i32 7, !"openmp", i32 51} |
| // IR: ![[META2:[0-9]+]] = |
| // IR: ![[LOOP3]] = distinct !{![[LOOP3]], ![[LOOPPROP4:[0-9]+]]} |
| // IR: ![[LOOPPROP4]] = !{!"llvm.loop.mustprogress"} |
| // IR: ![[LOOP5]] = distinct !{![[LOOP5]], ![[LOOPPROP4]]} |
