1; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s --check-prefix=GEN 2; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s --check-prefix=GEN 3; RUN: llvm-profdata merge %S/Inputs/loop1.proftext -o %t.profdata 4; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 5; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 7target triple = "x86_64-unknown-linux-gnu" 8 9; GEN: $__llvm_profile_raw_version = comdat any 10; GEN: @__llvm_profile_raw_version = constant i64 {{[0-9]+}}, comdat 11; GEN: @__profn_test_simple_for = private constant [15 x i8] c"test_simple_for" 12 13define i32 @test_simple_for(i32 %n) { 14entry: 15; GEN: entry: 16; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @__profn_test_simple_for, i32 0, i32 0), i64 34137660316, i32 2, i32 1) 17 br label %for.cond 18 19for.cond: 20; GEN: for.cond: 21; GEN-NOT: call void @llvm.instrprof.increment 22 %i = phi i32 [ 0, %entry ], [ %inc1, %for.inc ] 23 %sum = phi i32 [ 1, %entry ], [ %inc, %for.inc ] 24 %cmp = icmp slt i32 %i, %n 25 br i1 %cmp, label %for.body, label %for.end 26; USE: br i1 %cmp, label %for.body, label %for.end 27; USE-SAME: !prof ![[BW_FOR_COND:[0-9]+]] 28; USE: ![[BW_FOR_COND]] = !{!"branch_weights", i32 96, i32 4} 29 30for.body: 31; GEN: for.body: 32; GEN-NOT: call void @llvm.instrprof.increment 33 %inc = add nsw i32 %sum, 1 34 br label %for.inc 35 36for.inc: 37; GEN: for.inc: 38; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @__profn_test_simple_for, i32 0, i32 0), i64 34137660316, i32 2, i32 0) 39 %inc1 = add nsw i32 %i, 1 40 br label %for.cond 41 42for.end: 43; GEN: for.end: 44; GEN-NOT: call void @llvm.instrprof.increment 45; GEN: ret i32 46 ret i32 %sum 47} 48