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[OMPIRBuilder] CANCEL IF(FALSE) is still a cancellation point #164587

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[OMPIRBuilder] CANCEL IF(FALSE) is still a cancellation point #164587

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109 changes: 60 additions & 49 deletions clang/test/OpenMP/cancel_codegen.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -776,8 +776,8 @@ for (int i = 0; i < argc; ++i) {
// CHECK3: omp_section_loop.after:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_AFTERSECTIONS_FINI:%.*]]
// CHECK3: omp_section_loop.aftersections.fini:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_PREHEADER13:%.*]]
// CHECK3: omp_section_loop.preheader13:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_PREHEADER16:%.*]]
// CHECK3: omp_section_loop.preheader16:
// CHECK3-NEXT: store i32 0, ptr [[P_LOWERBOUND29]], align 4
// CHECK3-NEXT: store i32 1, ptr [[P_UPPERBOUND30]], align 4
// CHECK3-NEXT: store i32 1, ptr [[P_STRIDE31]], align 4
Expand All @@ -787,54 +787,54 @@ for (int i = 0; i < argc; ++i) {
// CHECK3-NEXT: [[TMP10:%.*]] = load i32, ptr [[P_UPPERBOUND30]], align 4
// CHECK3-NEXT: [[TMP11:%.*]] = sub i32 [[TMP10]], [[TMP9]]
// CHECK3-NEXT: [[TMP12:%.*]] = add i32 [[TMP11]], 1
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_HEADER14:%.*]]
// CHECK3: omp_section_loop.header14:
// CHECK3-NEXT: [[OMP_SECTION_LOOP_IV20:%.*]] = phi i32 [ 0, [[OMP_SECTION_LOOP_PREHEADER13]] ], [ [[OMP_SECTION_LOOP_NEXT22:%.*]], [[OMP_SECTION_LOOP_INC17:%.*]] ]
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_COND15:%.*]]
// CHECK3: omp_section_loop.cond15:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_HEADER17:%.*]]
// CHECK3: omp_section_loop.header17:
// CHECK3-NEXT: [[OMP_SECTION_LOOP_IV20:%.*]] = phi i32 [ 0, [[OMP_SECTION_LOOP_PREHEADER16]] ], [ [[OMP_SECTION_LOOP_NEXT22:%.*]], [[OMP_SECTION_LOOP_INC17:%.*]] ]
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_COND18:%.*]]
// CHECK3: omp_section_loop.cond18:
// CHECK3-NEXT: [[OMP_SECTION_LOOP_CMP21:%.*]] = icmp ult i32 [[OMP_SECTION_LOOP_IV20]], [[TMP12]]
// CHECK3-NEXT: br i1 [[OMP_SECTION_LOOP_CMP21]], label [[OMP_SECTION_LOOP_BODY16:%.*]], label [[OMP_SECTION_LOOP_EXIT18:%.*]]
// CHECK3: omp_section_loop.body16:
// CHECK3-NEXT: br i1 [[OMP_SECTION_LOOP_CMP21]], label [[OMP_SECTION_LOOP_BODY19:%.*]], label [[OMP_SECTION_LOOP_EXIT21:%.*]]
// CHECK3: omp_section_loop.body19:
// CHECK3-NEXT: [[TMP13:%.*]] = add i32 [[OMP_SECTION_LOOP_IV20]], [[TMP9]]
// CHECK3-NEXT: [[TMP14:%.*]] = mul i32 [[TMP13]], 1
// CHECK3-NEXT: [[TMP15:%.*]] = add i32 [[TMP14]], 0
// CHECK3-NEXT: switch i32 [[TMP15]], label [[OMP_SECTION_LOOP_BODY16_SECTIONS_AFTER:%.*]] [
// CHECK3-NEXT: i32 0, label [[OMP_SECTION_LOOP_BODY_CASE23:%.*]]
// CHECK3-NEXT: i32 1, label [[OMP_SECTION_LOOP_BODY_CASE25:%.*]]
// CHECK3-NEXT: i32 0, label [[OMP_SECTION_LOOP_BODY_CASE26:%.*]]
// CHECK3-NEXT: i32 1, label [[OMP_SECTION_LOOP_BODY_CASE29:%.*]]
// CHECK3-NEXT: ]
// CHECK3: omp_section_loop.body.case23:
// CHECK3: omp_section_loop.body.case26:
// CHECK3-NEXT: [[OMP_GLOBAL_THREAD_NUM24:%.*]] = call i32 @__kmpc_global_thread_num(ptr @[[GLOB1]])
// CHECK3-NEXT: [[TMP16:%.*]] = call i32 @__kmpc_cancel(ptr @[[GLOB1]], i32 [[OMP_GLOBAL_THREAD_NUM24]], i32 3)
// CHECK3-NEXT: [[TMP17:%.*]] = icmp eq i32 [[TMP16]], 0
// CHECK3-NEXT: br i1 [[TMP17]], label [[OMP_SECTION_LOOP_BODY_CASE23_SPLIT:%.*]], label [[OMP_SECTION_LOOP_BODY_CASE23_CNCL:%.*]]
// CHECK3: omp_section_loop.body.case23.split:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_BODY_CASE23_SECTION_AFTER:%.*]]
// CHECK3: omp_section_loop.body.case23.section.after:
// CHECK3-NEXT: br i1 [[TMP17]], label [[OMP_SECTION_LOOP_BODY_CASE26_SPLIT:%.*]], label [[OMP_SECTION_LOOP_BODY_CASE26_CNCL:%.*]]
// CHECK3: omp_section_loop.body.case26.split:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_BODY_CASE26_SECTION_AFTER:%.*]]
// CHECK3: omp_section_loop.body.case26.section.after:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_BODY16_SECTIONS_AFTER]]
// CHECK3: omp_section_loop.body.case26:
// CHECK3: omp_section_loop.body.case29:
// CHECK3-NEXT: [[OMP_GLOBAL_THREAD_NUM27:%.*]] = call i32 @__kmpc_global_thread_num(ptr @[[GLOB1]])
// CHECK3-NEXT: [[TMP18:%.*]] = call i32 @__kmpc_cancel(ptr @[[GLOB1]], i32 [[OMP_GLOBAL_THREAD_NUM27]], i32 3)
// CHECK3-NEXT: [[TMP19:%.*]] = icmp eq i32 [[TMP18]], 0
// CHECK3-NEXT: br i1 [[TMP19]], label [[OMP_SECTION_LOOP_BODY_CASE25_SPLIT:%.*]], label [[OMP_SECTION_LOOP_BODY_CASE25_CNCL:%.*]]
// CHECK3: omp_section_loop.body.case26.split:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_BODY_CASE25_SECTION_AFTER26:%.*]]
// CHECK3: omp_section_loop.body.case26.section.after27:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_BODY_CASE25_SECTION_AFTER:%.*]]
// CHECK3: omp_section_loop.body.case26.section.after:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_BODY16_SECTIONS_AFTER]]
// CHECK3: omp_section_loop.body16.sections.after:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_INC17]]
// CHECK3: omp_section_loop.inc17:
// CHECK3-NEXT: br i1 [[TMP19]], label [[OMP_SECTION_LOOP_BODY_CASE29_SPLIT:%.*]], label [[OMP_SECTION_LOOP_BODY_CASE29_CNCL:%.*]]
// CHECK3: omp_section_loop.body.case29.split:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_BODY_CASE25_SECTION_AFTER29:%.*]]
// CHECK3: omp_section_loop.body.case29.section.after30:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_BODY_CASE29_SECTION_AFTER:%.*]]
// CHECK3: omp_section_loop.body.case29.section.after:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_BODY19_SECTIONS_AFTER:.*]]
// CHECK3: omp_section_loop.body19.sections.after:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_INC20:.*]]
// CHECK3: omp_section_loop.inc20:
// CHECK3-NEXT: [[OMP_SECTION_LOOP_NEXT22]] = add nuw i32 [[OMP_SECTION_LOOP_IV20]], 1
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_HEADER14]]
// CHECK3: omp_section_loop.exit18:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_HEADER17]]
// CHECK3: omp_section_loop.exit21:
// CHECK3-NEXT: call void @__kmpc_for_static_fini(ptr @[[GLOB1]], i32 [[OMP_GLOBAL_THREAD_NUM32]])
// CHECK3-NEXT: [[OMP_GLOBAL_THREAD_NUM33:%.*]] = call i32 @__kmpc_global_thread_num(ptr @[[GLOB1]])
// CHECK3-NEXT: call void @__kmpc_barrier(ptr @[[GLOB2]], i32 [[OMP_GLOBAL_THREAD_NUM33]])
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_AFTER19:%.*]]
// CHECK3: omp_section_loop.after19:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_AFTER22:%.*]]
// CHECK3: omp_section_loop.after22:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_AFTER19SECTIONS_FINI:%.*]]
// CHECK3: omp_section_loop.after19sections.fini:
// CHECK3: omp_section_loop.after22sections.fini:
// CHECK3-NEXT: [[TMP20:%.*]] = load i32, ptr [[ARGC_ADDR]], align 4
// CHECK3-NEXT: store i32 [[TMP20]], ptr [[DOTCAPTURE_EXPR_]], align 4
// CHECK3-NEXT: [[TMP21:%.*]] = load i32, ptr [[DOTCAPTURE_EXPR_]], align 4
Expand Down Expand Up @@ -891,13 +891,17 @@ for (int i = 0; i < argc; ++i) {
// CHECK3: .cancel.exit:
// CHECK3-NEXT: br label [[CANCEL_EXIT:%.*]]
// CHECK3: omp_section_loop.body.case.cncl:
// CHECK3-NEXT: br label [[FINI10:.*]]
// CHECK3: .fini25:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_EXIT18]]
// CHECK3-NEXT: br label [[FINI13:.*]]
// CHECK3: .fini13:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_EXIT:.*]]
// CHECK3: omp_section_loop.body.case26.cncl:
// CHECK3-NEXT: br label [[FINI29:.*]]
// CHECK3: .fini29:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_EXIT18]]
// CHECK3: .fini28:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_EXIT18:.*]]
// CHECK3: omp_section_loop.body.case29.cncl:
// CHECK3-NEXT: br label [[FINI32:.*]]
// CHECK3: .fini32:
// CHECK3-NEXT: br label [[OMP_SECTION_LOOP_EXIT21:.*]]
// CHECK3: .cancel.continue:
// CHECK3-NEXT: br label [[OMP_IF_END:%.*]]
// CHECK3: omp_if.else:
Expand Down Expand Up @@ -956,8 +960,17 @@ for (int i = 0; i < argc; ++i) {
// CHECK3-NEXT: [[TOBOOL:%.*]] = fcmp une float [[TMP2]], 0.000000e+00
// CHECK3-NEXT: br i1 [[TOBOOL]], label [[TMP14:%.*]], label [[TMP3:%.*]]
// CHECK3: 3:
// CHECK3-NEXT: br label [[TMP4:%.*]]
// CHECK3: 4:
// CHECK3-NEXT: %[[GTN:.*]] = call i32 @__kmpc_global_thread_num(ptr @1)
// CHECK3-NEXT: %[[CANCEL_POINT:.*]] = call i32 @__kmpc_cancellationpoint(ptr @1, i32 %[[GTN]], i32 1)
// CHECK3-NEXT: %[[COND:.*]] = icmp eq i32 %[[CANCEL_POINT]], 0
// CHECK3-NEXT: br i1 %[[COND]], label %[[SPLIT:.*]], label %[[CNCL:.*]]
// CHECK3: .cncl:
// CHECK3-NEXT: br label %[[FINI:.*]]
// CHECK3: .fini:
// CHECK3-NEXT: br label %[[EXIT_STUB:omp.par.exit.exitStub]]
// CHECK3: .split:
// CHECK3-NEXT: br label [[TMP6:%.*]]
// CHECK3: 6:
// CHECK3-NEXT: [[TMP5:%.*]] = load i32, ptr [[LOADGEP_ARGC_ADDR]], align 4
// CHECK3-NEXT: [[CONV:%.*]] = trunc i32 [[TMP5]] to i8
// CHECK3-NEXT: [[TMP6:%.*]] = load ptr, ptr [[LOADGEP_ARGV_ADDR]], align 8
Expand All @@ -969,10 +982,8 @@ for (int i = 0; i < argc; ++i) {
// CHECK3-NEXT: [[TMP8:%.*]] = call i32 @__kmpc_cancel_barrier(ptr @[[GLOB3:[0-9]+]], i32 [[OMP_GLOBAL_THREAD_NUM4]])
// CHECK3-NEXT: [[TMP9:%.*]] = icmp eq i32 [[TMP8]], 0
// CHECK3-NEXT: br i1 [[TMP9]], label [[DOTCONT:%.*]], label [[DOTCNCL5:%.*]]
// CHECK3: .cncl4:
// CHECK3-NEXT: br label [[FINI:%.*]]
// CHECK3: .fini
// CHECK3-NEXT: br label %[[EXIT_STUB:omp.par.exit.exitStub]]
// CHECK3: .cncl7:
// CHECK3-NEXT: br label %[[FINI]]
// CHECK3: .cont:
// CHECK3-NEXT: [[TMP10:%.*]] = load i32, ptr [[LOADGEP_ARGC_ADDR]], align 4
// CHECK3-NEXT: [[TMP11:%.*]] = load ptr, ptr [[LOADGEP_ARGV_ADDR]], align 8
Expand All @@ -988,16 +999,16 @@ for (int i = 0; i < argc; ++i) {
// CHECK3: omp.par.region.parallel.after:
// CHECK3-NEXT: br label [[OMP_PAR_PRE_FINALIZE:%.*]]
// CHECK3: omp.par.pre_finalize:
// CHECK3-NEXT: br label [[FINI]]
// CHECK3: 14:
// CHECK3-NEXT: br label %[[FINI]]
// CHECK3: 16:
// CHECK3-NEXT: [[OMP_GLOBAL_THREAD_NUM1:%.*]] = call i32 @__kmpc_global_thread_num(ptr @[[GLOB1]])
// CHECK3-NEXT: [[TMP15:%.*]] = call i32 @__kmpc_cancel(ptr @[[GLOB1]], i32 [[OMP_GLOBAL_THREAD_NUM1]], i32 1)
// CHECK3-NEXT: [[TMP16:%.*]] = icmp eq i32 [[TMP15]], 0
// CHECK3-NEXT: br i1 [[TMP16]], label [[DOTSPLIT:%.*]], label [[DOTCNCL:%.*]]
// CHECK3: .cncl:
// CHECK3-NEXT: br label [[FINI]]
// CHECK3: .split:
// CHECK3-NEXT: br label [[TMP4]]
// CHECK3: .cncl4:
// CHECK3-NEXT: br label %[[FINI]]
// CHECK3: .split3:
// CHECK3-NEXT: br label {{.+}}
// CHECK3: omp.par.exit.exitStub:
// CHECK3-NEXT: ret void
//
Expand Down
14 changes: 13 additions & 1 deletion llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
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Expand Up @@ -1087,8 +1087,20 @@ OpenMPIRBuilder::createCancel(const LocationDescription &Loc,
auto *UI = Builder.CreateUnreachable();

Instruction *ThenTI = UI, *ElseTI = nullptr;
if (IfCondition)
if (IfCondition) {
SplitBlockAndInsertIfThenElse(IfCondition, UI, &ThenTI, &ElseTI);

// Even if the if condition evaluates to false, this should count as a
// cancellation point
Builder.SetInsertPoint(ElseTI);
auto ElseIP = Builder.saveIP();
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[style] Don’t “almost always” use auto


InsertPointOrErrorTy IPOrErr = createCancellationPoint(
LocationDescription{ElseIP, Loc.DL}, CanceledDirective);
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Suggested change
LocationDescription{ElseIP, Loc.DL}, CanceledDirective);
LocationDescription(ElseIP, Loc.DL), CanceledDirective);

brace-initialization is uncommon in /llvm

if (!IPOrErr)
return IPOrErr;
}

Builder.SetInsertPoint(ThenTI);

Value *CancelKind = nullptr;
Expand Down
4 changes: 2 additions & 2 deletions llvm/unittests/Frontend/OpenMPIRBuilderTest.cpp
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Expand Up @@ -490,8 +490,8 @@ TEST_F(OpenMPIRBuilderTest, CreateCancelIfCond) {
OMPBuilder.createCancel(Loc, Builder.getTrue(), OMPD_parallel));
Builder.restoreIP(NewIP);
EXPECT_FALSE(M->global_empty());
EXPECT_EQ(M->size(), 3U);
EXPECT_EQ(F->size(), 8U);
EXPECT_EQ(M->size(), 4U);
EXPECT_EQ(F->size(), 10U);
EXPECT_EQ(BB->size(), 1U);
ASSERT_TRUE(isa<BranchInst>(BB->getTerminator()));
ASSERT_EQ(BB->getTerminator()->getNumSuccessors(), 2U);
Expand Down
71 changes: 48 additions & 23 deletions mlir/test/Target/LLVMIR/openmp-cancel.mlir
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Expand Up @@ -60,28 +60,35 @@ llvm.func @cancel_parallel_if(%arg0 : i1) {
// CHECK: omp.par.region: ; preds = %[[VAL_17]]
// CHECK: br label %[[VAL_20:.*]]
// CHECK: omp.par.region1: ; preds = %[[VAL_19]]
// CHECK: br i1 %[[VAL_16]], label %[[VAL_21:.*]], label %[[VAL_22:.*]]
// CHECK: br i1 %[[VAL_16]], label %[[SPLIT:.*]], label %[[VAL_22:.*]]
// CHECK: 3: ; preds = %[[VAL_20]]
// CHECK: br label %[[VAL_23:.*]]
// CHECK: 4: ; preds = %[[VAL_22]], %[[VAL_24:.*]]
// CHECK: br label %[[VAL_25:.*]]
// CHECK: omp.region.cont: ; preds = %[[VAL_23]]
// CHECK: br label %[[VAL_26:.*]]
// CHECK: omp.par.pre_finalize: ; preds = %[[VAL_25]]
// CHECK: br label %[[VAL_27:.*]]
// CHECK: %[[GTN:.*]] = call i32 @__kmpc_global_thread_num(ptr @1)
// CHECK: %[[NOT_CANCELLED:.*]] = call i32 @__kmpc_cancellationpoint(ptr @1, i32 %[[GTN]], i32 1)
// CHECK: %[[COND:.*]] = icmp eq i32 %[[NOT_CANCELLED]], 0
// CHECK: br i1 %[[COND]], label %[[VAL_23:.*]], label %[[CNCL:.*]]
// CHECK: .cncl:
// CHECK: br label %[[FINI:.*]]
// CHECK: .fini:
// CHECK: %[[VAL_32:.*]] = call i32 @__kmpc_global_thread_num(ptr @1)
// CHECK: %[[VAL_33:.*]] = call i32 @__kmpc_cancel_barrier(ptr @2, i32 %[[VAL_32]])
// CHECK: br label %[[EXIT_STUB:.*]]
// CHECK: 6: ; preds = %[[VAL_20]]
// CHECK: .split:
// CHECK: br label %[[SEVEN:.*]]
// CHECK: 7:
// CHECK: br label %[[VAL_25:.*]]
// CHECK: omp.region.cont:
// CHECK: br label %[[VAL_26:.*]]
// CHECK: omp.par.pre_finalize: ; preds = %[[VAL_25]]
// CHECK: br label %[[VAL_27:.*]]
// CHECK: 8: ; preds = %[[VAL_20]]
// CHECK: %[[VAL_28:.*]] = call i32 @__kmpc_global_thread_num(ptr @1)
// CHECK: %[[VAL_29:.*]] = call i32 @__kmpc_cancel(ptr @1, i32 %[[VAL_28]], i32 1)
// CHECK: %[[VAL_30:.*]] = icmp eq i32 %[[VAL_29]], 0
// CHECK: br i1 %[[VAL_30]], label %[[VAL_24]], label %[[VAL_31:.*]]
// CHECK: .cncl: ; preds = %[[VAL_21]]
// CHECK: br label %[[VAL_27]]
// CHECK: .split: ; preds = %[[VAL_21]]
// CHECK: br label %[[VAL_23]]
// CHECK: br i1 %[[VAL_30]], label %[[SPLIT5:.*]], label %[[VAL_31:.*]]
// CHECK: .cncl{{.*}}:
// CHECK: br label %[[FINI]]
// CHECK: .split{{.*}}:
// CHECK: br label %[[SEVEN]]
// CHECK: omp.par.exit.exitStub:
// CHECK: ret void

Expand Down Expand Up @@ -136,11 +143,16 @@ llvm.func @cancel_sections_if(%cond : i1) {
// CHECK: %[[VAL_30:.*]] = call i32 @__kmpc_cancel(ptr @1, i32 %[[VAL_29]], i32 3)
// CHECK: %[[VAL_31:.*]] = icmp eq i32 %[[VAL_30]], 0
// CHECK: br i1 %[[VAL_31]], label %[[VAL_32:.*]], label %[[VAL_33:.*]]
// CHECK: .split: ; preds = %[[VAL_27]]
// CHECK: .split{{.*}}: ; preds = %[[VAL_27]]
// CHECK: br label %[[VAL_34:.*]]
// CHECK: 12: ; preds = %[[VAL_25]]
// CHECK: %[[GTN:.*]] = call i32 @__kmpc_global_thread_num(ptr @1)
// CHECK: %[[CANCEL_POINT:.*]] = call i32 @__kmpc_cancellationpoint(ptr @1, i32 %[[GTN]], i32 3)
// CHECK: %[[COND:.*]] = icmp eq i32 %13, 0
// CHECK: br i1 %[[COND]], label %[[SPLIT:.*]], label %[[CNCL:.*]]
// CHECK: .split{{.*}}:
// CHECK: br label %[[VAL_34]]
// CHECK: 13: ; preds = %[[VAL_28]], %[[VAL_32]]
// CHECK: 15:
// CHECK: br label %[[VAL_35:.*]]
// CHECK: omp.region.cont: ; preds = %[[VAL_34]]
// CHECK: br label %[[VAL_23]]
Expand All @@ -158,8 +170,12 @@ llvm.func @cancel_sections_if(%cond : i1) {
// CHECK: br label %[[VAL_38:.*]]
// CHECK: omp_section_loop.aftersections.fini: ; preds = %[[VAL_37]]
// CHECK: ret void
// CHECK: .cncl: ; preds = %[[VAL_27]]
// CHECK: br label %[[VAL_19]]
// CHECK: .cncl:
// CHECK: br label %[[FINI:.*]]
// CHECK: .fini:
// CHECK: br label %[[OMP_SECTION_LOOP_EXIT:.*]]
// CHECK: .cncl{{.*}}:
// CHECK: br label %[[FINI]]

llvm.func @cancel_wsloop_if(%lb : i32, %ub : i32, %step : i32, %cond : i1) {
omp.wsloop {
Expand Down Expand Up @@ -225,11 +241,16 @@ llvm.func @cancel_wsloop_if(%lb : i32, %ub : i32, %step : i32, %cond : i1) {
// CHECK: %[[VAL_47:.*]] = call i32 @__kmpc_cancel(ptr @1, i32 %[[VAL_46]], i32 2)
// CHECK: %[[VAL_48:.*]] = icmp eq i32 %[[VAL_47]], 0
// CHECK: br i1 %[[VAL_48]], label %[[VAL_49:.*]], label %[[VAL_50:.*]]
// CHECK: .split: ; preds = %[[VAL_44]]
// CHECK: .split{{.*}}:
// CHECK: br label %[[VAL_51:.*]]
// CHECK: 28: ; preds = %[[VAL_42]]
// CHECK: 28:
// CHECK: %[[GTN:.*]] = call i32 @__kmpc_global_thread_num(ptr @1)
// CHECK: %[[CANCEL_POINT:.*]] = call i32 @__kmpc_cancellationpoint(ptr @1, i32 %[[GTN]], i32 2)
// CHECK: %[[COND:.*]] = icmp eq i32 %[[CANCEL_POINT]], 0
// CHECK: br i1 %[[COND]], label %[[SPLIT3:.*]], label %[[CNCL4:.*]]
// CHECK: .split{{.*}}:
// CHECK: br label %[[VAL_51]]
// CHECK: 29: ; preds = %[[VAL_45]], %[[VAL_49]]
// CHECK: 31:
// CHECK: br label %[[VAL_52:.*]]
// CHECK: omp.region.cont1: ; preds = %[[VAL_51]]
// CHECK: br label %[[VAL_32]]
Expand All @@ -245,8 +266,12 @@ llvm.func @cancel_wsloop_if(%lb : i32, %ub : i32, %step : i32, %cond : i1) {
// CHECK: br label %[[VAL_55:.*]]
// CHECK: omp.region.cont: ; preds = %[[VAL_54]]
// CHECK: ret void
// CHECK: .cncl: ; preds = %[[VAL_44]]
// CHECK: br label %[[VAL_38]]
// CHECK: .cncl{{.*}}:
// CHECK: br label %[[FINI:.*]]
// CHECK: .fini:
// CHECK: br label %[[OMP_LOOP_EXIT:.*]]
// CHECK: .cncl{{.*}}:
// CHECK: br label %[[FINI:.*]]

omp.private {type = firstprivate} @i32_priv : i32 copy {
^bb0(%arg0: !llvm.ptr, %arg1: !llvm.ptr):
Expand Down
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