From 31ad54298e85d44829cc1967e8147037085ae97c Mon Sep 17 00:00:00 2001 From: Xinliang David Li Date: Tue, 12 Jan 2016 07:18:53 +0000 Subject: [PATCH] [PGO] Add Linux specific test cases for profile runtime (second try with more strict config check) Currently, only gc-sections related tests are added. Gold linker currently is required due to PR19161 of bfd linker. llvm-svn: 257456 --- .../test/profile/Linux/instrprof-basic.c | 31 ++++++++++++++++ .../test/profile/Linux/instrprof-dlopen.test | 34 +++++++++++++++++ .../Linux/instrprof-dynamic-one-shared.test | 23 ++++++++++++ .../Linux/instrprof-dynamic-two-shared.test | 24 ++++++++++++ compiler-rt/test/profile/Linux/lit.local.cfg | 37 +++++++++++++++++++ 5 files changed, 149 insertions(+) create mode 100644 compiler-rt/test/profile/Linux/instrprof-basic.c create mode 100644 compiler-rt/test/profile/Linux/instrprof-dlopen.test create mode 100644 compiler-rt/test/profile/Linux/instrprof-dynamic-one-shared.test create mode 100644 compiler-rt/test/profile/Linux/instrprof-dynamic-two-shared.test create mode 100644 compiler-rt/test/profile/Linux/lit.local.cfg diff --git a/compiler-rt/test/profile/Linux/instrprof-basic.c b/compiler-rt/test/profile/Linux/instrprof-basic.c new file mode 100644 index 000000000000..7ae683d9bd9e --- /dev/null +++ b/compiler-rt/test/profile/Linux/instrprof-basic.c @@ -0,0 +1,31 @@ +// RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t -O3 %s +// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t +// RUN: llvm-profdata merge -o %t.profdata %t.profraw +// RUN: %clang_profuse=%t.profdata -o - -S -emit-llvm %s | FileCheck %s + +int begin(int i) { + // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD1:[0-9]+]] + if (i) + return 0; + return 1; +} + +int end(int i) { + // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD2:[0-9]+]] + if (i) + return 0; + return 1; +} + +int main(int argc, const char *argv[]) { + begin(0); + end(1); + + // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD2:[0-9]+]] + if (argc) + return 0; + return 1; +} + +// CHECK: ![[PD1]] = !{!"branch_weights", i32 1, i32 2} +// CHECK: ![[PD2]] = !{!"branch_weights", i32 2, i32 1} diff --git a/compiler-rt/test/profile/Linux/instrprof-dlopen.test b/compiler-rt/test/profile/Linux/instrprof-dlopen.test new file mode 100644 index 000000000000..618367c5defb --- /dev/null +++ b/compiler-rt/test/profile/Linux/instrprof-dlopen.test @@ -0,0 +1,34 @@ +RUN: mkdir -p %t.d +RUN: %clang_profgen -o %t.d/func.shared -fPIC -shared -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections %S/../Inputs/instrprof-dlopen-func.c +RUN: %clang_profgen -o %t.d/func2.shared -fPIC -shared -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections %S/../Inputs/instrprof-dlopen-func2.c +RUN: %clang -o %t-local -fPIC -DDLOPEN_FUNC_DIR=\"%t.d\" -DDLOPEN_FLAGS="RTLD_LAZY | RTLD_LOCAL" %S/../Inputs/instrprof-dlopen-main.c +RUN: %clang -o %t-global -fPIC -DDLOPEN_FUNC_DIR=\"%t.d\" -DDLOPEN_FLAGS="RTLD_LAZY | RTLD_GLOBAL" %S/../Inputs/instrprof-dlopen-main.c + +RUN: %clang -c -o %t.d/main.o %S/../Inputs/instrprof-dlopen-main.c +RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t-static %S/../Inputs/instrprof-dlopen-func.c %S/../Inputs/instrprof-dlopen-func2.c %t.d/main.o + +RUN: env LLVM_PROFILE_FILE=%t-static.profraw %run %t-static +RUN: env LLVM_PROFILE_FILE=%t-local.profraw %run %t-local +RUN: env LLVM_PROFILE_FILE=%t-global.profraw %run %t-global + +RUN: llvm-profdata merge -o %t-static.profdata %t-static.profraw +RUN: llvm-profdata merge -o %t-local.profdata %t-local.profraw +RUN: llvm-profdata merge -o %t-global.profdata %t-global.profraw + +RUN: %clang_profuse=%t-static.profdata -o %t-func.static.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func.c +RUN: %clang_profuse=%t-local.profdata -o %t-func.local.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func.c +RUN: %clang_profuse=%t-global.profdata -o %t-func.global.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func.c +RUN: diff %t-func.static.ll %t-func.local.ll +RUN: diff %t-func.static.ll %t-func.global.ll + +RUN: %clang_profuse=%t-static.profdata -o %t-func2.static.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func2.c +RUN: %clang_profuse=%t-local.profdata -o %t-func2.local.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func2.c +RUN: %clang_profuse=%t-global.profdata -o %t-func2.global.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func2.c +RUN: diff %t-func2.static.ll %t-func2.local.ll +RUN: diff %t-func2.static.ll %t-func2.global.ll + +RUN: %clang_profuse=%t-static.profdata -o %t-main.static.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-main.c +RUN: %clang_profuse=%t-local.profdata -o %t-main.local.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-main.c +RUN: %clang_profuse=%t-local.profdata -o %t-main.global.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-main.c +RUN: diff %t-main.static.ll %t-main.local.ll +RUN: diff %t-main.static.ll %t-main.global.ll diff --git a/compiler-rt/test/profile/Linux/instrprof-dynamic-one-shared.test b/compiler-rt/test/profile/Linux/instrprof-dynamic-one-shared.test new file mode 100644 index 000000000000..52f40bf9bee1 --- /dev/null +++ b/compiler-rt/test/profile/Linux/instrprof-dynamic-one-shared.test @@ -0,0 +1,23 @@ +RUN: mkdir -p %t.d +RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t.d/a.shared -fPIC -shared %S/../Inputs/instrprof-dynamic-a.cpp +RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t-shared -fPIC -rpath %t.d %t.d/a.shared %S/../Inputs/instrprof-dynamic-b.cpp %S/../Inputs/instrprof-dynamic-main.cpp + +RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t-static %S/../Inputs/instrprof-dynamic-a.cpp %S/../Inputs/instrprof-dynamic-b.cpp %S/../Inputs/instrprof-dynamic-main.cpp + +RUN: env LLVM_PROFILE_FILE=%t-static.profraw %run %t-static +RUN: env LLVM_PROFILE_FILE=%t-shared.profraw %run %t-shared + +RUN: llvm-profdata merge -o %t-static.profdata %t-static.profraw +RUN: llvm-profdata merge -o %t-shared.profdata %t-shared.profraw + +RUN: %clang_profuse=%t-static.profdata -o %t-a.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-a.cpp +RUN: %clang_profuse=%t-shared.profdata -o %t-a.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-a.cpp +RUN: diff %t-a.static.ll %t-a.shared.ll + +RUN: %clang_profuse=%t-static.profdata -o %t-b.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-b.cpp +RUN: %clang_profuse=%t-shared.profdata -o %t-b.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-b.cpp +RUN: diff %t-b.static.ll %t-b.shared.ll + +RUN: %clang_profuse=%t-static.profdata -o %t-main.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-main.cpp +RUN: %clang_profuse=%t-shared.profdata -o %t-main.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-main.cpp +RUN: diff %t-main.static.ll %t-main.shared.ll diff --git a/compiler-rt/test/profile/Linux/instrprof-dynamic-two-shared.test b/compiler-rt/test/profile/Linux/instrprof-dynamic-two-shared.test new file mode 100644 index 000000000000..949914603ba4 --- /dev/null +++ b/compiler-rt/test/profile/Linux/instrprof-dynamic-two-shared.test @@ -0,0 +1,24 @@ +RUN: mkdir -p %t.d +RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t.d/a.shared -fPIC -shared %S/../Inputs/instrprof-dynamic-a.cpp +RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t.d/b.shared -fPIC -shared %S/../Inputs/instrprof-dynamic-b.cpp +RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t-shared -fPIC -rpath %t.d %t.d/a.shared %t.d/b.shared %S/../Inputs/instrprof-dynamic-main.cpp + +RUN: %clang_profgen -o %t-static %S/../Inputs/instrprof-dynamic-a.cpp %S/../Inputs/instrprof-dynamic-b.cpp %S/../Inputs/instrprof-dynamic-main.cpp + +RUN: env LLVM_PROFILE_FILE=%t-static.profraw %run %t-static +RUN: env LLVM_PROFILE_FILE=%t-shared.profraw %run %t-shared + +RUN: llvm-profdata merge -o %t-static.profdata %t-static.profraw +RUN: llvm-profdata merge -o %t-shared.profdata %t-shared.profraw + +RUN: %clang_profuse=%t-static.profdata -o %t-a.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-a.cpp +RUN: %clang_profuse=%t-shared.profdata -o %t-a.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-a.cpp +RUN: diff %t-a.static.ll %t-a.shared.ll + +RUN: %clang_profuse=%t-static.profdata -o %t-b.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-b.cpp +RUN: %clang_profuse=%t-shared.profdata -o %t-b.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-b.cpp +RUN: diff %t-b.static.ll %t-b.shared.ll + +RUN: %clang_profuse=%t-static.profdata -o %t-main.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-main.cpp +RUN: %clang_profuse=%t-shared.profdata -o %t-main.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-main.cpp +RUN: diff %t-main.static.ll %t-main.shared.ll diff --git a/compiler-rt/test/profile/Linux/lit.local.cfg b/compiler-rt/test/profile/Linux/lit.local.cfg new file mode 100644 index 000000000000..c8c79fc7d8a7 --- /dev/null +++ b/compiler-rt/test/profile/Linux/lit.local.cfg @@ -0,0 +1,37 @@ +import subprocess + +def getRoot(config): + if not config.parent: + return config + return getRoot(config.parent) + + +def is_gold_linker_available(): + + if not config.gold_executable: + return False + try: + ld_cmd = subprocess.Popen([config.gold_executable, '--help'], stdout = subprocess.PIPE) + ld_out = ld_cmd.stdout.read().decode() + ld_cmd.wait() + except: + return False + + if not '-plugin' in ld_out: + return False + + clang_cmd = subprocess.Popen([config.clang, '-fuse-ld=gold', '-xc', '-'], + stdin = subprocess.PIPE, + stdout = subprocess.PIPE, + stderr = subprocess.PIPE) + clang_err = clang_cmd.communicate('int main() { return 0; }')[1] + + if not 'invalid linker' in clang_err: + return True + + return False + +root = getRoot(config) + +if root.host_os not in ['Linux'] or not is_gold_linker_available(): + config.unsupported = True