From 74a42aedfe14938e01d128456c76cede2ccbc26c Mon Sep 17 00:00:00 2001 From: Fangrui Song Date: Wed, 13 Jan 2021 14:27:39 -0800 Subject: [PATCH] [test] Add Clang side tests for -fdebug-info-for-profiling There is currently a driver test but no test for its effect on linkageName & pass pipeline. Reviewed By: dblaikie Differential Revision: https://reviews.llvm.org/D94381 --- .../CodeGenCXX/fdebug-info-for-profiling.cpp | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 clang/test/CodeGenCXX/fdebug-info-for-profiling.cpp diff --git a/clang/test/CodeGenCXX/fdebug-info-for-profiling.cpp b/clang/test/CodeGenCXX/fdebug-info-for-profiling.cpp new file mode 100644 index 000000000000..0a66818b23be --- /dev/null +++ b/clang/test/CodeGenCXX/fdebug-info-for-profiling.cpp @@ -0,0 +1,21 @@ +/// Normally -g1 does not add linkageName. -fdebug-info-for-profiling adds linkageName. +// RUN: %clang_cc1 -emit-llvm -triple %itanium_abi_triple -debug-info-kind=line-tables-only %s -o - | FileCheck %s --check-prefix=LINE +// RUN: %clang_cc1 -emit-llvm -triple %itanium_abi_triple -debug-info-kind=line-tables-only -fdebug-info-for-profiling %s -o - | FileCheck %s + +// LINE: = distinct !DISubprogram(name: "foo", scope: + +// CHECK: = distinct !DICompileUnit({{.*}}, debugInfoForProfiling: true, +// CHECK: = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: + +/// Add a DWARF discriminators pass for PGO. +// RUN: %clang_cc1 -emit-llvm -fno-legacy-pass-manager -fdebug-pass-manager -O1 -fprofile-instrument-path=a.profdata %s -o - 2>&1 | FileCheck %s --check-prefix=NODISCR +// RUN: %clang_cc1 -emit-llvm -fno-legacy-pass-manager -fdebug-pass-manager -O1 -fprofile-instrument-path=a.profdata -fdebug-info-for-profiling %s -o - 2>&1 | FileCheck %s --check-prefix=DISCR + +// RUN: echo > %t.proftext +// RUN: llvm-profdata merge %t.proftext -o %t.profdata +// RUN: %clang_cc1 -emit-llvm -fno-legacy-pass-manager -fdebug-pass-manager -O1 -fprofile-instrument-use-path=%t.profdata -fdebug-info-for-profiling %s -o - 2>&1 | FileCheck %s --check-prefix=DISCR + +// NODISCR-NOT: Running pass: AddDiscriminatorsPass +// DISCR: Running pass: AddDiscriminatorsPass on {{.*}} + +void foo() {}