1; Test the invoke reduction standalone, dead blocks are not removed 2; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=invokes --test FileCheck --test-arg --check-prefixes=CHECK,INTERESTING --test-arg %s --test-arg --input-file %s -o %t.0 3; RUN: FileCheck --check-prefixes=CHECK,RESULT,RESULT-SINGLE %s < %t.0 4 5; Test the full reduction pipeline, which cleans up unreachable blocks 6; RUN: llvm-reduce --abort-on-invalid-reduction --test FileCheck --test-arg --check-prefixes=CHECK,INTERESTING --test-arg %s --test-arg --input-file %s -o %t.1 7; RUN: FileCheck --check-prefixes=CHECK,RESULT,RESULT-FULL %s < %t.1 8 9 10define i32 @maybe_throwing_callee(i32 %arg) { 11 call void @thrown() 12 ret i32 %arg 13} 14 15declare void @did_not_throw(i32) 16 17declare void @thrown() 18 19; CHECK-LABEL: define void @invoke_keep_landingpad_block(i32 %arg) personality ptr @__gxx_personality_v0 { 20; INTERESTING: i32 @maybe_throwing_callee( 21 22; RESULT-SINGLE: %i0 = call i32 @maybe_throwing_callee(i32 %arg), !some.metadata !0 23; RESULT-SINGLE-NEXT: br label %bb3 24 25; RESULT-FULL: %i0 = call i32 @maybe_throwing_callee() 26; RESULT-FULL-NEXT: br label %bb4 27 28 29; RESULT-SINGLE: bb1: ; No predecessors! 30; RESULT-SINGLE-NEXT: %landing = landingpad { ptr, i32 } 31; RESULT-SINGLE-NEXT: catch ptr null 32; RESULT-SINGLE-NEXT: call void @thrown() 33define void @invoke_keep_landingpad_block(i32 %arg) personality ptr @__gxx_personality_v0 { 34bb: 35 %i0 = invoke i32 @maybe_throwing_callee(i32 %arg) 36 to label %bb3 unwind label %bb1, !some.metadata !0 37 38bb1: ; preds = %bb 39 %landing = landingpad { ptr, i32 } 40 catch ptr null 41 ; INTERESTING: call void @thrown() 42 call void @thrown() 43 br label %bb4 44 45bb3: ; preds = %bb 46 call void @did_not_throw(i32 %i0) 47 br label %bb4 48 49bb4: ; preds = %bb3, %bb1 50 ret void 51} 52 53; CHECK-LABEL: define void @invoke_drop_landingpad_block(i32 %arg) personality ptr @__gxx_personality_v0 { 54; INTERESTING: i32 @maybe_throwing_callee( 55 56; RESULT-SINGLE: %i0 = call i32 @maybe_throwing_callee(i32 %arg), !some.metadata !0 57; RESULT-SINGLE-NEXT: br label %bb3 58 59; RESULT-SINGLE: bb1: ; No predecessors! 60; RESULT-SINGLE-NEXT: %landing = landingpad { ptr, i32 } 61 62; RESULT-SINGLE: bb3: 63; RESULT-SINGLE-NEXT: call void @did_not_throw(i32 %i0) 64 65; RESULT-FULL: %i0 = call i32 @maybe_throwing_callee() 66; RESULT-FULL-NEXT: call void @did_not_throw() 67; RESULT-FULL-NEXT: ret void 68define void @invoke_drop_landingpad_block(i32 %arg) personality ptr @__gxx_personality_v0 { 69bb: 70 %i0 = invoke i32 @maybe_throwing_callee(i32 %arg) 71 to label %bb3 unwind label %bb1, !some.metadata !0 72 73bb1: ; preds = %bb 74 %landing = landingpad { ptr, i32 } 75 catch ptr null 76 call void @thrown() 77 br label %bb4 78 79bb3: ; preds = %bb 80 ; INTERESTING: call void @did_not_throw( 81 call void @did_not_throw(i32 %i0) 82 br label %bb4 83 84bb4: ; preds = %bb3, %bb1 85 ret void 86} 87 88declare i32 @another_maybe_throwing_callee(i32 %arg) 89 90; Test the same landing pad block is used by multiple invokes 91; CHECK-LABEL: define i32 @multi_invoke_caller(i32 %arg) personality ptr @__gxx_personality_v0 { 92define i32 @multi_invoke_caller(i32 %arg) personality ptr @__gxx_personality_v0 { 93bb: 94 %i0 = invoke i32 @maybe_throwing_callee(i32 %arg) 95 to label %bb3 unwind label %bb1, !some.metadata !0 96 97; RESULT: bb1: ; preds = %bb4 98; RESULT-NEXT: %landing = landingpad { ptr, i32 } 99; RESULT-NEXT: catch ptr null 100bb1: ; preds = %bb 101 %landing = landingpad { ptr, i32 } 102 catch ptr null 103 ; INTERESTING: call void @thrown() 104 call void @thrown() 105 br label %bb4 106 107bb3: ; preds = %bb 108 call void @did_not_throw(i32 %i0) 109 br label %bb4 110 111bb4: ; preds = %bb3, %bb1 112 ; INTERESTING: invoke i32 @another_maybe_throwing_callee( 113 114 ; RESULT-SINGLE: %i1 = invoke i32 @another_maybe_throwing_callee(i32 %arg) 115 ; RESULT-SINGLE-NEXT: to label %bb5 unwind label %bb1, !some.metadata !1 116 117 ; RESULT-FULL: %i1 = invoke i32 @another_maybe_throwing_callee(i32 0) 118 ; RESULT-FULL-NEXT: to label %bb5 unwind label %bb1{{$}} 119 %i1 = invoke i32 @another_maybe_throwing_callee(i32 %arg) 120 to label %bb5 unwind label %bb1, !some.metadata !1 121 122bb5: 123 ret i32 %i1 124} 125 126declare i32 @__gxx_personality_v0(...) 127 128!0 = !{!"arst"} 129!1 = !{!"arstarst"} 130