1; RUN: llvm-profdata merge %S/Inputs/fix_entry_count.proftext -o %t.profdata 2; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=true -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 3 4target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7define i32 @test_simple_for(i32 %n) { 8; USE: define i32 @test_simple_for(i32 %n) 9; USE-SAME: !prof ![[ENTRY_COUNT:[0-9]*]] 10entry: 11 br label %for.cond 12 13for.cond: 14 %i = phi i32 [ 0, %entry ], [ %inc1, %for.inc ] 15 %sum = phi i32 [ 1, %entry ], [ %inc, %for.inc ] 16 %cmp = icmp slt i32 %i, %n 17 br i1 %cmp, label %for.body, label %for.end 18; USE: br i1 %cmp, label %for.body, label %for.end 19; USE-SAME: !prof ![[BW_FOR_COND:[0-9]+]] 20 21for.body: 22 %inc = add nsw i32 %sum, 1 23 br label %for.inc 24 25for.inc: 26 %inc1 = add nsw i32 %i, 1 27 br label %for.cond 28 29for.end: 30 ret i32 %sum 31} 32; USE: ![[ENTRY_COUNT]] = !{!"function_entry_count", i64 1} 33; USE: ![[BW_FOR_COND]] = !{!"branch_weights", i32 96, i32 1} 34