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Petr Hosekd3db13a2019-10-04 13:29:56 -07001; RUN: opt < %s -S -instrprof | FileCheck %s
2; RUN: opt < %s -S -instrprof -runtime-counter-relocation | FileCheck -check-prefixes=RELOC %s
3
4target triple = "x86_64-unknown-linux-gnu"
5
Fangrui Song9f506fc2021-05-28 21:14:03 -07006@__profn_foo = private constant [3 x i8] c"foo"
Petr Hosek54902e002021-07-08 13:44:05 -07007; RELOC: $__llvm_profile_counter_bias = comdat any
8; RELOC: @__llvm_profile_counter_bias = linkonce_odr hidden global i64 0, comdat
Petr Hosekd3db13a2019-10-04 13:29:56 -07009
10; CHECK-LABEL: define void @foo
Ellis Hoagde11de32021-11-19 15:44:48 -080011; CHECK-NEXT: %pgocount = load i64, i64* getelementptr inbounds ([1 x i64], [1 x i64]* @__profc_foo, i32 0, i32 0)
Petr Hosekd3db13a2019-10-04 13:29:56 -070012; CHECK-NEXT: %1 = add i64 %pgocount, 1
Ellis Hoagde11de32021-11-19 15:44:48 -080013; CHECK-NEXT: store i64 %1, i64* getelementptr inbounds ([1 x i64], [1 x i64]* @__profc_foo, i32 0, i32 0)
Petr Hosekd3db13a2019-10-04 13:29:56 -070014; RELOC-LABEL: define void @foo
15; RELOC-NEXT: %1 = load i64, i64* @__llvm_profile_counter_bias
Roman Lebedev101aaf62021-10-27 22:19:59 +030016; RELOC-NEXT: %2 = add i64 ptrtoint ([1 x i64]* @__profc_foo to i64), %1
Petr Hosekd3db13a2019-10-04 13:29:56 -070017; RELOC-NEXT: %3 = inttoptr i64 %2 to i64*
18; RELOC-NEXT: %pgocount = load i64, i64* %3
19; RELOC-NEXT: %4 = add i64 %pgocount, 1
20; RELOC-NEXT: store i64 %4, i64* %3
21define void @foo() {
22 call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 0, i32 1, i32 0)
23 ret void
24}
25
26declare void @llvm.instrprof.increment(i8*, i64, i32, i32)