1; RUN: opt < %s -passes=pgo-instr-gen -pgo-instrument-entry=false -S | FileCheck %s --check-prefixes=GEN,NOTENTRY 2; RUN: llvm-profdata merge %S/Inputs/loop1.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; RUN: opt < %s -passes=pgo-instr-gen -pgo-instrument-entry=true -S | FileCheck %s --check-prefixes=GEN,ENTRY 5; RUN: llvm-profdata merge %S/Inputs/loop1_entry.proftext -o %t.profdata 6; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=true -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 7 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_simple_for = private constant [15 x i8] c"test_simple_for" 14 15define i32 @test_simple_for(i32 %n) { 16entry: 17; GEN: entry: 18; NOTENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_simple_for, i64 {{[0-9]+}}, i32 2, i32 1) 19; ENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_simple_for, i64 {{[0-9]+}}, i32 2, i32 0) 20 br label %for.cond 21 22for.cond: 23; GEN: for.cond: 24; GEN-NOT: call void @llvm.instrprof.increment 25 %i = phi i32 [ 0, %entry ], [ %inc1, %for.inc ] 26 %sum = phi i32 [ 1, %entry ], [ %inc, %for.inc ] 27 %cmp = icmp slt i32 %i, %n 28 br i1 %cmp, label %for.body, label %for.end 29; USE: br i1 %cmp, label %for.body, label %for.end 30; USE-SAME: !prof ![[BW_FOR_COND:[0-9]+]] 31; USE: ![[BW_FOR_COND]] = !{!"branch_weights", i32 96, i32 4} 32 33for.body: 34; GEN: for.body: 35; GEN-NOT: call void @llvm.instrprof.increment 36 %inc = add nsw i32 %sum, 1 37 br label %for.inc 38 39for.inc: 40; GEN: for.inc: 41; NOTENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_simple_for, i64 {{[0-9]+}}, i32 2, i32 0) 42; ENTRY: call void @llvm.instrprof.increment(ptr @__profn_test_simple_for, i64 {{[0-9]+}}, i32 2, i32 1) 43 %inc1 = add nsw i32 %i, 1 44 br label %for.cond 45 46for.end: 47; GEN: for.end: 48; GEN-NOT: call void @llvm.instrprof.increment 49; GEN: ret i32 50 ret i32 %sum 51} 52