| ; RUN: opt < %s -passes=pgo-instr-gen -pgo-instrument-entry -S | FileCheck %s --check-prefix=GEN |
| ; RUN: opt < %s -passes=pgo-instr-gen,instrprof -pgo-instrument-entry -atomic-first-counter -S | FileCheck %s --check-prefix=GENA |
| |
| ; RUN: llvm-profdata merge %S/Inputs/branch2.proftext -o %t.profdata |
| ; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instrument-entry -S | FileCheck %s --check-prefix=USE |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; GEN: $__llvm_profile_raw_version = comdat any |
| ; GEN: @__llvm_profile_raw_version = hidden constant i64 {{[0-9]+}}, comdat |
| ; GEN: @__profn_test_br_2 = private constant [9 x i8] c"test_br_2" |
| |
| define i32 @test_br_2(i32 %i) { |
| entry: |
| ; GEN: entry: |
| ; GEN: call void @llvm.instrprof.increment(ptr @__profn_test_br_2, i64 {{[0-9]+}}, i32 2, i32 0) |
| ; GENA: entry: |
| ; GENA: %{{[0-9+]}} = atomicrmw add ptr @__profc_test_br_2, i64 1 monotonic |
| ; USE: br i1 %cmp, label %if.then, label %if.else |
| ; USE-SAME: !prof ![[BW_ENTRY:[0-9]+]] |
| ; USE: ![[BW_ENTRY]] = !{!"branch_weights", i32 0, i32 1} |
| %cmp = icmp sgt i32 %i, 0 |
| br i1 %cmp, label %if.then, label %if.else |
| |
| if.then: |
| ; GEN: if.then: |
| ; GEN-NOT: llvm.instrprof.increment |
| %add = add nsw i32 %i, 2 |
| br label %if.end |
| |
| if.else: |
| ; GEN: if.else: |
| ; GEN: call void @llvm.instrprof.increment(ptr @__profn_test_br_2, i64 {{[0-9]+}}, i32 2, i32 1) |
| ; GENA: if.else: |
| ; GENA: %pgocount = load i64, ptr getelementptr inbounds ([2 x i64], ptr @__profc_test_br_2, i32 0, i32 1), align 8 |
| ; GENA: [[V:%[0-9]*]] = add i64 %pgocount, 1 |
| ; GENA: store i64 [[V]], ptr getelementptr inbounds ([2 x i64], ptr @__profc_test_br_2, i32 0, i32 1), align 8 |
| %sub = sub nsw i32 %i, 2 |
| br label %if.end |
| |
| if.end: |
| ; GEN: if.end: |
| ; GEN-NOT: llvm.instrprof.increment |
| %retv = phi i32 [ %add, %if.then ], [ %sub, %if.else ] |
| ret i32 %retv |
| ; GEN: ret |
| } |