1 ; RUN: llvm-profdata merge %S/Inputs/select2.proftext -o %t.profdata 2 ; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instr-select=true -S | FileCheck %s --check-prefix=USE 3 ; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instr-select=true -S | FileCheck %s --check-prefix=USE 4 5 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 6 target triple = "x86_64-unknown-linux-gnu" 7 8 define i32 @foo(i32 %n) { 9 ;USE: define i32 @foo(i32 %n) !prof ![[ENTRY_COUNT:[0-9]+]] { 10 entry: 11 br label %for.cond 12 13 for.cond: 14 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] 15 %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ] 16 %cmp = icmp slt i32 %i.0, %n 17 br i1 %cmp, label %for.body, label %for.end 18 ;USE: br i1 %cmp, label %for.body, label %for.end, !prof ![[BW_FOR_BR:[0-9]+]] 19 20 for.body: 21 %cmp1 = icmp sgt i32 %sum.0, 10 22 %cond = select i1 %cmp1, i32 20, i32 -10 23 ;USE: %cond = select i1 %cmp1, i32 20, i32 -10, !prof ![[BW_FOR_SELECT:[0-9]+]] 24 %add = add nsw i32 %sum.0, %cond 25 br label %for.inc 26 27 for.inc: 28 %inc = add nsw i32 %i.0, 1 29 br label %for.cond 30 31 for.end: 32 ret i32 %sum.0 33 } 34 35 ;USE: ![[ENTRY_COUNT]] = !{!"function_entry_count", i64 3} 36 ;USE: ![[BW_FOR_BR]] = !{!"branch_weights", i32 800, i32 3} 37 ;USE: ![[BW_FOR_SELECT]] = !{!"branch_weights", i32 300, i32 500} 38
