1; RUN: opt < %s -pgo-instr-gen -pgo-instrument-entry=false -S | FileCheck %s --check-prefix=GEN 2; RUN: opt < %s -passes=pgo-instr-gen -pgo-instrument-entry=false -S | FileCheck %s --check-prefix=GEN 3; RUN: llvm-profdata merge %S/Inputs/criticaledge.proftext -o %t.profdata 4; RUN: opt < %s -pgo-instr-use -pgo-instrument-entry=false -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 5; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=false -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 6; 7; RUN: opt < %s -pgo-instr-gen -pgo-instrument-entry=true -S | FileCheck %s --check-prefix=GEN 8; RUN: opt < %s -passes=pgo-instr-gen -pgo-instrument-entry=true -S | FileCheck %s --check-prefix=GEN 9; RUN: llvm-profdata merge %S/Inputs/criticaledge_entry.proftext -o %t2.profdata 10; RUN: opt < %s -pgo-instr-use -pgo-instrument-entry=true -pgo-test-profile-file=%t2.profdata -S | FileCheck %s --check-prefix=USE 11; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=true -pgo-test-profile-file=%t2.profdata -S | FileCheck %s --check-prefix=USE 12target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 13target triple = "x86_64-unknown-linux-gnu" 14 15; GEN: $__llvm_profile_raw_version = comdat any 16; GEN: @__llvm_profile_raw_version = constant i64 {{[0-9]+}}, comdat 17; GEN: @__profn_test_criticalEdge = private constant [17 x i8] c"test_criticalEdge" 18; GEN: @__profn__stdin__bar = private constant [11 x i8] c"<stdin>:bar" 19 20define i32 @test_criticalEdge(i32 %i, i32 %j) { 21entry: 22; CHECK: entry: 23; NOTENTRY-NOT: call void @llvm.instrprof.increment 24; ENTRY: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 0) 25 switch i32 %i, label %sw.default [ 26 i32 1, label %sw.bb 27 i32 2, label %sw.bb1 28 i32 3, label %sw.bb2 29 i32 4, label %sw.bb2 30; CHECK: i32 3, label %entry.sw.bb2_crit_edge 31; CHECK: i32 4, label %entry.sw.bb2_crit_edge1 32 i32 5, label %sw.bb2 33 ] 34; USE: ] 35; USE-SAME: !prof ![[BW_SWITCH:[0-9]+]] 36 37; CHECK: entry.sw.bb2_crit_edge1: 38; NOTENTRY: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 1) 39; ENTRY: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 2) 40; CHECK: br label %sw.bb2 41 42; CHECK: entry.sw.bb2_crit_edge: 43; NOTENTRY: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 0) 44; TENTRY: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 1) 45; CHECK: br label %sw.bb2 46 47sw.bb: 48; GEN: sw.bb: 49; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 5) 50 %call = call i32 @bar(i32 2) 51 br label %sw.epilog 52 53sw.bb1: 54; GEN: sw.bb1: 55; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 4) 56 %call2 = call i32 @bar(i32 1024) 57 br label %sw.epilog 58 59sw.bb2: 60; GEN: sw.bb2: 61; GEN-NOT: call void @llvm.instrprof.increment 62 %cmp = icmp eq i32 %j, 2 63 br i1 %cmp, label %if.then, label %if.end 64; USE: br i1 %cmp, label %if.then, label %if.end 65; USE-SAME: !prof ![[BW_SW_BB2:[0-9]+]] 66 67if.then: 68; GEN: if.then: 69; NOTENTRY: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 2) 70; ENTRY-NOT: call void @llvm.instrprof.increment 71 %call4 = call i32 @bar(i32 4) 72 br label %return 73 74if.end: 75; GEN: if.end: 76; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 3) 77 %call5 = call i32 @bar(i32 8) 78 br label %sw.epilog 79 80sw.default: 81; GEN: sw.default: 82; GEN-NOT: call void @llvm.instrprof.increment 83 %call6 = call i32 @bar(i32 32) 84 %cmp7 = icmp sgt i32 %j, 10 85 br i1 %cmp7, label %if.then8, label %if.end9 86; USE: br i1 %cmp7, label %if.then8, label %if.end9 87; USE-SAME: !prof ![[BW_SW_DEFAULT:[0-9]+]] 88 89if.then8: 90; GEN: if.then8: 91; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 7) 92 %add = add nsw i32 %call6, 10 93 br label %if.end9 94 95if.end9: 96; GEN: if.end9: 97; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 {{[0-9]+}}, i32 8, i32 6) 98 %res.0 = phi i32 [ %add, %if.then8 ], [ %call6, %sw.default ] 99 br label %sw.epilog 100 101sw.epilog: 102; GEN: sw.epilog: 103; GEN-NOT: call void @llvm.instrprof.increment 104 %res.1 = phi i32 [ %res.0, %if.end9 ], [ %call5, %if.end ], [ %call2, %sw.bb1 ], [ %call, %sw.bb ] 105 br label %return 106 107return: 108; GEN: return: 109; GEN-NOT: call void @llvm.instrprof.increment 110 %retval = phi i32 [ %res.1, %sw.epilog ], [ %call4, %if.then ] 111 ret i32 %retval 112} 113 114define internal i32 @bar(i32 %i) { 115entry: 116; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @__profn__stdin__bar, i32 0, i32 0), i64 {{[0-9]+}}, i32 1, i32 0) 117 ret i32 %i 118} 119 120; USE: ![[BW_SWITCH]] = !{!"branch_weights", i32 2, i32 1, i32 0, i32 2, i32 1, i32 1} 121; USE: ![[BW_SW_BB2]] = !{!"branch_weights", i32 2, i32 2} 122; USE: ![[BW_SW_DEFAULT]] = !{!"branch_weights", i32 1, i32 1} 123