1; RUN: opt < %s -passes=pgo-instr-gen -pgo-instrument-entry=false -S | FileCheck %s --check-prefix=GEN 2; RUN: llvm-profdata merge %S/Inputs/criticaledge.proftext -o %t.profdata 3; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=false -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 4; 5; RUN: opt < %s -passes=pgo-instr-gen -pgo-instrument-entry=true -S | FileCheck %s --check-prefix=GEN 6; RUN: llvm-profdata merge %S/Inputs/criticaledge_entry.proftext -o %t2.profdata 7; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=true -pgo-test-profile-file=%t2.profdata -S | FileCheck %s --check-prefix=USE 8target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 9target triple = "x86_64-unknown-linux-gnu" 10 11; GEN: $__llvm_profile_raw_version = comdat any 12; GEN: @__llvm_profile_raw_version = hidden constant i64 {{[0-9]+}}, comdat 13; GEN: @__profn_test_criticalEdge = private constant [17 x i8] c"test_criticalEdge" 14; GEN: @__profn__stdin__bar = private constant [11 x i8] c"<stdin>;bar" 15 16define i32 @test_criticalEdge(i32 %i, i32 %j) { 17entry: 18; CHECK: entry: 19; NOTENTRY-NOT: call void @llvm.instrprof.increment 20; ENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 0) 21 switch i32 %i, label %sw.default [ 22 i32 1, label %sw.bb 23 i32 2, label %sw.bb1 24 i32 3, label %sw.bb2 25 i32 4, label %sw.bb2 26; CHECK: i32 3, label %entry.sw.bb2_crit_edge 27; CHECK: i32 4, label %entry.sw.bb2_crit_edge1 28 i32 5, label %sw.bb2 29 ] 30; USE: ] 31; USE-SAME: !prof ![[BW_SWITCH:[0-9]+]] 32 33; CHECK: entry.sw.bb2_crit_edge1: 34; NOTENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 1) 35; ENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 2) 36; CHECK: br label %sw.bb2 37 38; CHECK: entry.sw.bb2_crit_edge: 39; NOTENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 0) 40; TENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 1) 41; CHECK: br label %sw.bb2 42 43sw.bb: 44; GEN: sw.bb: 45; GEN: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 5) 46 %call = call i32 @bar(i32 2) 47 br label %sw.epilog 48 49sw.bb1: 50; GEN: sw.bb1: 51; GEN: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 6) 52 %call2 = call i32 @bar(i32 1024) 53 br label %sw.epilog 54 55sw.bb2: 56; GEN: sw.bb2: 57; GEN-NOT: call void @llvm.instrprof.increment 58 %cmp = icmp eq i32 %j, 2 59 br i1 %cmp, label %if.then, label %if.end 60; USE: br i1 %cmp, label %if.then, label %if.end 61; USE-SAME: !prof ![[BW_SW_BB2:[0-9]+]] 62 63if.then: 64; GEN: if.then: 65; NOTENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 2) 66; ENTRY-NOT: call void @llvm.instrprof.increment 67 %call4 = call i32 @bar(i32 4) 68 br label %return 69 70if.end: 71; GEN: if.end: 72; GEN: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 3) 73 %call5 = call i32 @bar(i32 8) 74 br label %sw.epilog 75 76sw.default: 77; GEN: sw.default: 78; GEN: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 4) 79 %call6 = call i32 @bar(i32 32) 80 %cmp7 = icmp sgt i32 %j, 10 81 br i1 %cmp7, label %if.then8, label %if.end9 82; USE: br i1 %cmp7, label %if.then8, label %if.end9 83; USE-SAME: !prof ![[BW_SW_DEFAULT:[0-9]+]] 84 85if.then8: 86; GEN: if.then8: 87; GEN: call void @llvm.instrprof.increment(ptr @__profn_test_criticalEdge, i64 {{[0-9]+}}, i32 8, i32 7) 88 %add = add nsw i32 %call6, 10 89 br label %if.end9 90 91if.end9: 92; GEN: if.end9: 93; GEN-NOT: call void @llvm.instrprof.increment 94 %res.0 = phi i32 [ %add, %if.then8 ], [ %call6, %sw.default ] 95 br label %sw.epilog 96 97sw.epilog: 98; GEN: sw.epilog: 99; GEN-NOT: call void @llvm.instrprof.increment 100 %res.1 = phi i32 [ %res.0, %if.end9 ], [ %call5, %if.end ], [ %call2, %sw.bb1 ], [ %call, %sw.bb ] 101 br label %return 102 103return: 104; GEN: return: 105; GEN-NOT: call void @llvm.instrprof.increment 106 %retval = phi i32 [ %res.1, %sw.epilog ], [ %call4, %if.then ] 107 ret i32 %retval 108} 109 110define internal i32 @bar(i32 %i) { 111entry: 112; GEN: call void @llvm.instrprof.increment(ptr @__profn__stdin__bar, i64 {{[0-9]+}}, i32 1, i32 0) 113 ret i32 %i 114} 115 116; USE: ![[BW_SWITCH]] = !{!"branch_weights", i32 2, i32 1, i32 0, i32 2, i32 1, i32 1} 117; USE: ![[BW_SW_BB2]] = !{!"branch_weights", i32 2, i32 2} 118; USE: ![[BW_SW_DEFAULT]] = !{!"branch_weights", i32 1, i32 1} 119