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//@ edition: 2021
//@ needs-profiler-support
//@ compile-flags: -Cinstrument-coverage -Copt-level=0
//@ revisions: LINUX DARWIN WINDOWS
//@ [LINUX] only-linux
//@ [LINUX] filecheck-flags: -DINSTR_PROF_DATA=__llvm_prf_data
//@ [LINUX] filecheck-flags: -DINSTR_PROF_NAME=__llvm_prf_names
//@ [LINUX] filecheck-flags: -DINSTR_PROF_CNTS=__llvm_prf_cnts
//@ [LINUX] filecheck-flags: -DINSTR_PROF_COVMAP=__llvm_covmap
//@ [LINUX] filecheck-flags: -DINSTR_PROF_COVFUN=__llvm_covfun
//@ [LINUX] filecheck-flags: '-DCOMDAT_IF_SUPPORTED=, comdat'
//@ [DARWIN] only-macos
//@ [DARWIN] filecheck-flags: -DINSTR_PROF_DATA=__DATA,__llvm_prf_data,regular,live_support
//@ [DARWIN] filecheck-flags: -DINSTR_PROF_NAME=__DATA,__llvm_prf_names
//@ [DARWIN] filecheck-flags: -DINSTR_PROF_CNTS=__DATA,__llvm_prf_cnts
//@ [DARWIN] filecheck-flags: -DINSTR_PROF_COVMAP=__LLVM_COV,__llvm_covmap
//@ [DARWIN] filecheck-flags: -DINSTR_PROF_COVFUN=__LLVM_COV,__llvm_covfun
//@ [DARWIN] filecheck-flags: -DCOMDAT_IF_SUPPORTED=
//@ [WINDOWS] only-windows
//@ [WINDOWS] filecheck-flags: -DINSTR_PROF_DATA=.lprfd$M
//@ [WINDOWS] filecheck-flags: -DINSTR_PROF_NAME=.lprfn$M
//@ [WINDOWS] filecheck-flags: -DINSTR_PROF_CNTS=.lprfc$M
//@ [WINDOWS] filecheck-flags: -DINSTR_PROF_COVMAP=.lcovmap$M
//@ [WINDOWS] filecheck-flags: -DINSTR_PROF_COVFUN=.lcovfun$M
//@ [WINDOWS] filecheck-flags: '-DCOMDAT_IF_SUPPORTED=, comdat'
// ignore-tidy-linelength
pub fn will_be_called() -> &'static str {
let val = "called";
println!("{}", val);
val
}
pub fn will_not_be_called() -> bool {
println!("should not have been called");
false
}
pub fn print<T>(left: &str, value: T, right: &str)
where
T: std::fmt::Display,
{
println!("{}{}{}", left, value, right);
}
pub fn wrap_with<F, T>(inner: T, should_wrap: bool, wrapper: F)
where
F: FnOnce(&T)
{
if should_wrap {
wrapper(&inner)
}
}
fn main() {
let less = 1;
let more = 100;
if less < more {
wrap_with(will_be_called(), less < more, |inner| print(" ***", inner, "*** "));
wrap_with(will_be_called(), more < less, |inner| print(" ***", inner, "*** "));
} else {
wrap_with(will_not_be_called(), true, |inner| print("wrapped result is: ", inner, ""));
}
}
// Check for metadata, variables, declarations, and function definitions injected
// into LLVM IR when compiling with -Cinstrument-coverage.
// WINDOWS: $__llvm_profile_runtime_user = comdat any
// CHECK: @__llvm_coverage_mapping = private constant
// CHECK-SAME: section "[[INSTR_PROF_COVMAP]]", align 8
// CHECK: @__covrec_{{[A-F0-9]+}}u = linkonce_odr hidden constant
// CHECK-SAME: section "[[INSTR_PROF_COVFUN]]"[[COMDAT_IF_SUPPORTED]], align 8
// WINDOWS: @__llvm_profile_runtime = external{{.*}}global i32
// CHECK: @__profc__R{{[a-zA-Z0-9_]+}}testprog14will_be_called = {{private|internal}} global
// CHECK-SAME: section "[[INSTR_PROF_CNTS]]"{{.*}}, align 8
// CHECK: @__profd__R{{[a-zA-Z0-9_]+}}testprog14will_be_called = {{private|internal}} global
// CHECK-SAME: @__profc__R{{[a-zA-Z0-9_]+}}testprog14will_be_called
// CHECK-SAME: section "[[INSTR_PROF_DATA]]"{{.*}}, align 8
// CHECK: @__profc__R{{[a-zA-Z0-9_]+}}testprog4main = {{private|internal}} global
// CHECK-SAME: section "[[INSTR_PROF_CNTS]]"{{.*}}, align 8
// CHECK: @__profd__R{{[a-zA-Z0-9_]+}}testprog4main = {{private|internal}} global
// CHECK-SAME: @__profc__R{{[a-zA-Z0-9_]+}}testprog4main
// CHECK-SAME: section "[[INSTR_PROF_DATA]]"{{.*}}, align 8
// CHECK: @__llvm_prf_nm = private constant
// CHECK-SAME: section "[[INSTR_PROF_NAME]]", align 1
// CHECK: @llvm.used = appending global
// CHECK-SAME: @__llvm_coverage_mapping
// CHECK-SAME: @__llvm_prf_nm
// CHECK-SAME: section "llvm.metadata"
// CHECK: define internal { {{.*}} } @_R{{[a-zA-Z0-9_]+}}testprog14will_be_called() unnamed_addr #{{[0-9]+}} {
// CHECK-NEXT: start:
// CHECK-NOT: define internal
// CHECK: atomicrmw add ptr
// CHECK-SAME: @__profc__R{{[a-zA-Z0-9_]+}}testprog14will_be_called,
// CHECK: declare void @llvm.instrprof.increment(ptr, i64, i32, i32) #[[LLVM_INSTRPROF_INCREMENT_ATTR:[0-9]+]]
// WINDOWS: define linkonce_odr hidden i32 @__llvm_profile_runtime_user() #[[LLVM_PROFILE_RUNTIME_USER_ATTR:[0-9]+]] comdat {
// WINDOWS-NEXT: %1 = load i32, ptr @__llvm_profile_runtime
// WINDOWS-NEXT: ret i32 %1
// WINDOWS-NEXT: }
// CHECK: attributes #[[LLVM_INSTRPROF_INCREMENT_ATTR]] = { nounwind }
// WINDOWS: attributes #[[LLVM_PROFILE_RUNTIME_USER_ATTR]] = { noinline }
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