File: runtime-counter-relocation.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; RUN: opt < %s -S -passes=instrprof | FileCheck %s
; RUN: opt < %s -S -passes=instrprof -runtime-counter-relocation | FileCheck -check-prefixes=RELOC %s

target triple = "x86_64-unknown-linux-gnu"

@__profn_foo = private constant [3 x i8] c"foo"
; RELOC: $__llvm_profile_counter_bias = comdat any
; RELOC: @__llvm_profile_counter_bias = linkonce_odr hidden global i64 0, comdat

; CHECK-LABEL: define void @foo
; CHECK-NEXT: %pgocount = load i64, ptr @__profc_foo
; CHECK-NEXT: %1 = add i64 %pgocount, 1
; CHECK-NEXT: store i64 %1, ptr @__profc_foo
; RELOC-LABEL: define void @foo
; RELOC-NEXT: %1 = load i64, ptr @__llvm_profile_counter_bias
; RELOC-NEXT: %2 = add i64 ptrtoint (ptr @__profc_foo to i64), %1
; RELOC-NEXT: %3 = inttoptr i64 %2 to ptr
; RELOC-NEXT: %pgocount = load i64, ptr %3
; RELOC-NEXT: %4 = add i64 %pgocount, 1
; RELOC-NEXT: store i64 %4, ptr %3
define void @foo() {
  call void @llvm.instrprof.increment(ptr @__profn_foo, i64 0, i32 1, i32 0)
  ret void
}

declare void @llvm.instrprof.increment(ptr, i64, i32, i32)