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Add codegen test that makes sure PGO instrumentation is emitted as ex…

…pected.
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michaelwoerister committed Apr 16, 2019
1 parent 227be65 commit e2acaee8bb364197af2ab197f0f641e8f988ae04
Showing with 20 additions and 0 deletions.
  1. +20 −0 src/test/codegen/pgo-instrumentation.rs
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// Test that `-Zpgo-gen` creates expected instrumentation artifacts in LLVM IR.

// needs-profiler-support
// compile-flags: -Z pgo-gen -Ccodegen-units=1

// CHECK: @__llvm_profile_raw_version =
// CHECK: @__profc_{{.*}}pgo_instrumentation{{.*}}some_function{{.*}} = private global
// CHECK: @__profd_{{.*}}pgo_instrumentation{{.*}}some_function{{.*}} = private global
// CHECK: @__profc_{{.*}}pgo_instrumentation{{.*}}main{{.*}} = private global
// CHECK: @__profd_{{.*}}pgo_instrumentation{{.*}}main{{.*}} = private global
// CHECK: @__llvm_profile_filename = {{.*}}"default_%m.profraw\00"{{.*}}

#[inline(never)]
fn some_function() {

}

fn main() {
some_function();
}

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