1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=rewrite-statepoints-for-gc -S 2>&1 | FileCheck %s 3 4declare void @foo() 5 6declare ptr addrspace(1) @generate_obj() 7 8declare void @consume_obj(ptr addrspace(1)) 9 10; derived %obj_to_consume base %obj_to_consume.base 11define void @test(i32 %condition) gc "statepoint-example" { 12; CHECK-LABEL: @test( 13; CHECK-NEXT: entry: 14; CHECK-NEXT: br label [[LOOP:%.*]] 15; CHECK: loop: 16; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(ptr addrspace(1) ()) @generate_obj, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ] 17; CHECK-NEXT: [[TMP0:%.*]] = call ptr addrspace(1) @llvm.experimental.gc.result.p1(token [[STATEPOINT_TOKEN]]) 18; CHECK-NEXT: switch i32 [[CONDITION:%.*]], label [[DEST_A:%.*]] [ 19; CHECK-NEXT: i32 0, label [[DEST_B:%.*]] 20; CHECK-NEXT: i32 1, label [[DEST_C:%.*]] 21; CHECK-NEXT: ] 22; CHECK: dest_a: 23; CHECK-NEXT: br label [[MERGE:%.*]] 24; CHECK: dest_b: 25; CHECK-NEXT: br label [[MERGE]] 26; CHECK: dest_c: 27; CHECK-NEXT: br label [[MERGE]] 28; CHECK: merge: 29; CHECK-NEXT: [[OBJ_TO_CONSUME:%.*]] = phi ptr addrspace(1) [ [[TMP0]], [[DEST_A]] ], [ null, [[DEST_B]] ], [ null, [[DEST_C]] ] 30; CHECK-NEXT: [[STATEPOINT_TOKEN1:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void (ptr addrspace(1))) @consume_obj, i32 1, i32 0, ptr addrspace(1) [[OBJ_TO_CONSUME]], i32 0, i32 0) [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0), "gc-live"(ptr addrspace(1) [[OBJ_TO_CONSUME]]) ] 31; CHECK-NEXT: [[OBJ_TO_CONSUME_RELOCATED:%.*]] = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token [[STATEPOINT_TOKEN1]], i32 0, i32 0) 32; CHECK-NEXT: br label [[MERGE_SPLIT:%.*]] 33; CHECK: merge.split: 34; CHECK-NEXT: [[STATEPOINT_TOKEN2:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ] 35; CHECK-NEXT: br label [[LOOP]] 36; 37entry: 38 br label %loop 39 40loop: ; preds = %merge.split, %entry 41 %0 = call ptr addrspace(1) @generate_obj() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ] 42 switch i32 %condition, label %dest_a [ 43 i32 0, label %dest_b 44 i32 1, label %dest_c 45 ] 46 47dest_a: ; preds = %loop 48 br label %merge 49 50dest_b: ; preds = %loop 51 br label %merge 52 53dest_c: ; preds = %loop 54 br label %merge 55 56merge: ; preds = %dest_c, %dest_b, %dest_a 57 %obj_to_consume = phi ptr addrspace(1) [ %0, %dest_a ], [ null, %dest_b ], [ null, %dest_c ] 58 call void @consume_obj(ptr addrspace(1) %obj_to_consume) [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ] 59 br label %merge.split 60 61merge.split: ; preds = %merge 62 call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ] 63 br label %loop 64} 65