| ; RUN: opt < %s -passes=pgo-instr-gen -pgo-instr-select=true -S | FileCheck %s --check-prefix=GEN |
| ; RUN: opt < %s -passes=pgo-instr-gen -pgo-instr-select=false -S | FileCheck %s --check-prefix=NOSELECT |
| ; RUN: llvm-profdata merge %S/Inputs/select1.proftext -o %t.profdata |
| ; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instr-select=true -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" |
| |
| define i32 @test_br_2(i32 %i) { |
| entry: |
| %cmp = icmp sgt i32 %i, 0 |
| br i1 %cmp, label %if.then, label %if.else |
| |
| if.then: |
| %add = add nsw i32 %i, 2 |
| ;GEN: %[[STEP:[0-9]+]] = zext i1 %cmp to i64 |
| ;GEN: call void @llvm.instrprof.increment.step({{.*}} i32 3, i32 2, i64 %[[STEP]]) |
| ;NOSELECT-NOT: call void @llvm.instrprof.increment.step |
| %s = select i1 %cmp, i32 %add, i32 0 |
| ;USE: select i1 %cmp{{.*}}, !prof ![[BW_ENTRY:[0-9]+]] |
| ;USE: ![[BW_ENTRY]] = !{!"branch_weights", i32 1, i32 3} |
| |
| br label %if.end |
| |
| if.else: |
| %sub = sub nsw i32 %i, 2 |
| br label %if.end |
| |
| if.end: |
| %retv = phi i32 [ %add, %if.then ], [ %sub, %if.else ] |
| ret i32 %retv |
| } |