1; RUN: llvm-profdata merge %S/Inputs/irreducible.proftext -o %t.profdata 2; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 3; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 4 5; GEN: $__llvm_profile_raw_version = comdat any 6 7; Function Attrs: noinline norecurse nounwind readnone uwtable 8define i32 @_Z11irreducibleii(i32 %iter_outer, i32 %iter_inner) local_unnamed_addr #0 { 9entry: 10 %cmp24 = icmp sgt i32 %iter_outer, 0 11 br i1 %cmp24, label %for.body, label %entry.for.cond.cleanup_crit_edge 12 13entry.for.cond.cleanup_crit_edge: ; preds = %entry 14 br label %for.cond.cleanup 15 16for.cond.cleanup: ; preds = %entry.for.cond.cleanup_crit_edge, %for.end 17 %sum.0.lcssa = phi i32 [ 0, %entry.for.cond.cleanup_crit_edge ], [ %sum.1, %for.end ] 18 ret i32 %sum.0.lcssa 19 20for.body: ; preds = %entry, %for.end 21 %k.026 = phi i32 [ %inc12, %for.end ], [ 0, %entry ] 22 %sum.025 = phi i32 [ %sum.1, %for.end ], [ 0, %entry ] 23 %rem23 = and i32 %k.026, 1 24 %cmp1 = icmp eq i32 %rem23, 0 25 br i1 %cmp1, label %entry8, label %for.cond2 26 27for.cond2: ; preds = %for.body, %if.end9 28 %sum.1 = phi i32 [ %add10, %if.end9 ], [ %sum.025, %for.body ] 29 %i.0 = phi i32 [ %inc, %if.end9 ], [ 0, %for.body ] 30 %cmp3 = icmp slt i32 %i.0, %iter_inner 31 br i1 %cmp3, label %for.body4, label %for.end 32; USE: br i1 %cmp3, label %for.body4, label %for.end, !prof !{{[0-9]+}}, 33; USE-SAME: !irr_loop ![[FOR_COND2_IRR_LOOP:[0-9]+]] 34 35for.body4: ; preds = %for.cond2 36 %rem5 = srem i32 %k.026, 3 37 %cmp6 = icmp eq i32 %rem5, 0 38 br i1 %cmp6, label %entry8, label %if.end9 39 40entry8: ; preds = %for.body4, %for.body 41 %sum.2 = phi i32 [ %sum.025, %for.body ], [ %sum.1, %for.body4 ] 42 %i.1 = phi i32 [ 0, %for.body ], [ %i.0, %for.body4 ] 43 %add = add nsw i32 %sum.2, 4 44 br label %if.end9 45; USE: br label %if.end9, 46; USE-SAME: !irr_loop ![[ENTRY8_IRR_LOOP:[0-9]+]] 47 48if.end9: ; preds = %entry8, %for.body4 49 %sum.3 = phi i32 [ %add, %entry8 ], [ %sum.1, %for.body4 ] 50 %i.2 = phi i32 [ %i.1, %entry8 ], [ %i.0, %for.body4 ] 51 %add10 = add nsw i32 %sum.3, 1 52 %inc = add nsw i32 %i.2, 1 53 br label %for.cond2 54; USE: br label %for.cond2, 55; USE-SAME: !irr_loop ![[IF_END9_IRR_LOOP:[0-9]+]] 56 57for.end: ; preds = %for.cond2 58 %inc12 = add nuw nsw i32 %k.026, 1 59 %exitcond = icmp eq i32 %inc12, %iter_outer 60 br i1 %exitcond, label %for.cond.cleanup, label %for.body 61} 62 63 64 65@targets = local_unnamed_addr global [256 x i8*] zeroinitializer, align 16 66@tracing = local_unnamed_addr global i32 0, align 4 67 68; Function Attrs: noinline norecurse nounwind uwtable 69define i32 @_Z11irreduciblePh(i8* nocapture readonly %p) { 70entry: 71 %0 = load i32, i32* @tracing, align 4 72 %1 = trunc i32 %0 to i8 73 %tobool = icmp eq i32 %0, 0 74 br label %for.cond1 75 76for.cond1: ; preds = %sw.default, %entry 77 br label %dispatch_op 78 79dispatch_op: ; preds = %sw.bb6, %for.cond1 80 switch i8 %1, label %sw.default [ 81 i8 0, label %sw.bb 82 i8 1, label %dispatch_op.sw.bb6_crit_edge 83 i8 2, label %sw.bb15 84 ] 85 86dispatch_op.sw.bb6_crit_edge: ; preds = %dispatch_op 87 br label %sw.bb6 88 89sw.bb: ; preds = %indirectgoto, %dispatch_op 90 br label %exit 91 92TARGET_1: ; preds = %indirectgoto 93 br label %sw.bb6 94; USE: br label %sw.bb6, !irr_loop {{.*}} 95 96sw.bb6: ; preds = %TARGET_1, %dispatch_op.sw.bb6_crit_edge 97 br i1 %tobool, label %dispatch_op, label %if.then 98; USE: br i1 %tobool, label %dispatch_op, label %if.then, !prof !{{[0-9]+}}, 99; USE-SAME: !irr_loop ![[SW_BB6_IRR_LOOP:[0-9]+]] 100 101if.then: ; preds = %sw.bb6 102 br label %indirectgoto 103 104TARGET_2: ; preds = %indirectgoto 105 br label %sw.bb15 106; USE: br label %sw.bb15, !irr_loop {{.*}} 107 108sw.bb15: ; preds = %TARGET_2, %dispatch_op 109 br i1 %tobool, label %if.then18, label %exit 110; USE: br i1 %tobool, label %if.then18, label %exit, !prof !{{[0-9]+}}, 111; USE-SAME: !irr_loop ![[SW_BB15_IRR_LOOP:[0-9]+]] 112 113if.then18: ; preds = %sw.bb15 114 br label %indirectgoto 115 116unknown_op: ; preds = %indirectgoto 117 br label %sw.default 118 119sw.default: ; preds = %unknown_op, %dispatch_op 120 br label %for.cond1 121 122exit: ; preds = %sw.bb15, %sw.bb 123 ret i32 0 124 125indirectgoto: ; preds = %if.then18, %if.then 126 %idxprom21 = zext i32 %0 to i64 127 %arrayidx22 = getelementptr inbounds [256 x i8*], [256 x i8*]* @targets, i64 0, i64 %idxprom21 128 %target = load i8*, i8** %arrayidx22, align 8 129 indirectbr i8* %target, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2] 130; USE: indirectbr i8* %target, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2], !prof !{{[0-9]+}}, 131; USE-SAME: !irr_loop ![[INDIRECTGOTO_IRR_LOOP:[0-9]+]] 132} 133 134; USE: ![[FOR_COND2_IRR_LOOP]] = !{!"loop_header_weight", i64 1050} 135; USE: ![[ENTRY8_IRR_LOOP]] = !{!"loop_header_weight", i64 373} 136; USE: ![[IF_END9_IRR_LOOP]] = !{!"loop_header_weight", i64 1000} 137; USE: ![[SW_BB6_IRR_LOOP]] = !{!"loop_header_weight", i64 501} 138; USE: ![[SW_BB15_IRR_LOOP]] = !{!"loop_header_weight", i64 100} 139; USE: ![[INDIRECTGOTO_IRR_LOOP]] = !{!"loop_header_weight", i64 400} 140