1 ; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s --check-prefix=GEN 2 ; RUN: llvm-profdata merge %S/Inputs/branch2.proftext -o %t.profdata 3 ; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 4 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 5 target triple = "x86_64-unknown-linux-gnu" 6 7 ; GEN: @__profn_test_br_2 = private constant [9 x i8] c"test_br_2" 8 9 define i32 @test_br_2(i32 %i) { 10 entry: 11 ; GEN: entry: 12 ; GEN-NOT: llvm.instrprof.increment 13 %cmp = icmp sgt i32 %i, 0 14 br i1 %cmp, label %if.then, label %if.else 15 ; USE: br i1 %cmp, label %if.then, label %if.else 16 ; USE-SAME: !prof ![[BW_ENTRY:[0-9]+]] 17 ; USE: ![[BW_ENTRY]] = !{!"branch_weights", i32 1, i32 1} 18 19 if.then: 20 ; GEN: if.then: 21 ; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @__profn_test_br_2, i32 0, i32 0), i64 29667547796, i32 2, i32 0) 22 %add = add nsw i32 %i, 2 23 br label %if.end 24 25 if.else: 26 ; GEN: if.else: 27 ; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @__profn_test_br_2, i32 0, i32 0), i64 29667547796, i32 2, i32 1) 28 %sub = sub nsw i32 %i, 2 29 br label %if.end 30 31 if.end: 32 ; GEN: if.end: 33 ; GEN-NOT: llvm.instrprof.increment 34 %retv = phi i32 [ %add, %if.then ], [ %sub, %if.else ] 35 ret i32 %retv 36 ; GEN: ret 37 } 38
