forked from OSchip/llvm-project
[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
This commit is contained in:
Xinliang David Li
parent
da0d141c8b
commit
31ad54298e
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// RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t -O3 %s
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-profdata merge -o %t.profdata %t.profraw
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// RUN: %clang_profuse=%t.profdata -o - -S -emit-llvm %s | FileCheck %s
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int begin(int i) {
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// CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD1:[0-9]+]]
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if (i)
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return 0;
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return 1;
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}
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int end(int i) {
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// CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD2:[0-9]+]]
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if (i)
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return 0;
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return 1;
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}
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int main(int argc, const char *argv[]) {
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begin(0);
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end(1);
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// CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD2:[0-9]+]]
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if (argc)
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return 0;
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return 1;
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}
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// CHECK: ![[PD1]] = !{!"branch_weights", i32 1, i32 2}
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// CHECK: ![[PD2]] = !{!"branch_weights", i32 2, i32 1}
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RUN: mkdir -p %t.d
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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
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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
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RUN: %clang -o %t-local -fPIC -DDLOPEN_FUNC_DIR=\"%t.d\" -DDLOPEN_FLAGS="RTLD_LAZY | RTLD_LOCAL" %S/../Inputs/instrprof-dlopen-main.c
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RUN: %clang -o %t-global -fPIC -DDLOPEN_FUNC_DIR=\"%t.d\" -DDLOPEN_FLAGS="RTLD_LAZY | RTLD_GLOBAL" %S/../Inputs/instrprof-dlopen-main.c
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RUN: %clang -c -o %t.d/main.o %S/../Inputs/instrprof-dlopen-main.c
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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
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RUN: env LLVM_PROFILE_FILE=%t-static.profraw %run %t-static
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RUN: env LLVM_PROFILE_FILE=%t-local.profraw %run %t-local
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RUN: env LLVM_PROFILE_FILE=%t-global.profraw %run %t-global
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RUN: llvm-profdata merge -o %t-static.profdata %t-static.profraw
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RUN: llvm-profdata merge -o %t-local.profdata %t-local.profraw
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RUN: llvm-profdata merge -o %t-global.profdata %t-global.profraw
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RUN: %clang_profuse=%t-static.profdata -o %t-func.static.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func.c
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RUN: %clang_profuse=%t-local.profdata -o %t-func.local.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func.c
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RUN: %clang_profuse=%t-global.profdata -o %t-func.global.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func.c
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RUN: diff %t-func.static.ll %t-func.local.ll
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RUN: diff %t-func.static.ll %t-func.global.ll
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RUN: %clang_profuse=%t-static.profdata -o %t-func2.static.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func2.c
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RUN: %clang_profuse=%t-local.profdata -o %t-func2.local.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func2.c
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RUN: %clang_profuse=%t-global.profdata -o %t-func2.global.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-func2.c
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RUN: diff %t-func2.static.ll %t-func2.local.ll
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RUN: diff %t-func2.static.ll %t-func2.global.ll
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RUN: %clang_profuse=%t-static.profdata -o %t-main.static.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-main.c
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RUN: %clang_profuse=%t-local.profdata -o %t-main.local.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-main.c
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RUN: %clang_profuse=%t-local.profdata -o %t-main.global.ll -S -emit-llvm %S/../Inputs/instrprof-dlopen-main.c
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RUN: diff %t-main.static.ll %t-main.local.ll
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RUN: diff %t-main.static.ll %t-main.global.ll
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RUN: mkdir -p %t.d
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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
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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
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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
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RUN: env LLVM_PROFILE_FILE=%t-static.profraw %run %t-static
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RUN: env LLVM_PROFILE_FILE=%t-shared.profraw %run %t-shared
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RUN: llvm-profdata merge -o %t-static.profdata %t-static.profraw
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RUN: llvm-profdata merge -o %t-shared.profdata %t-shared.profraw
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RUN: %clang_profuse=%t-static.profdata -o %t-a.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-a.cpp
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RUN: %clang_profuse=%t-shared.profdata -o %t-a.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-a.cpp
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RUN: diff %t-a.static.ll %t-a.shared.ll
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RUN: %clang_profuse=%t-static.profdata -o %t-b.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-b.cpp
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RUN: %clang_profuse=%t-shared.profdata -o %t-b.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-b.cpp
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RUN: diff %t-b.static.ll %t-b.shared.ll
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RUN: %clang_profuse=%t-static.profdata -o %t-main.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-main.cpp
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RUN: %clang_profuse=%t-shared.profdata -o %t-main.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-main.cpp
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RUN: diff %t-main.static.ll %t-main.shared.ll
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RUN: mkdir -p %t.d
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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
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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
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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
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RUN: %clang_profgen -o %t-static %S/../Inputs/instrprof-dynamic-a.cpp %S/../Inputs/instrprof-dynamic-b.cpp %S/../Inputs/instrprof-dynamic-main.cpp
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RUN: env LLVM_PROFILE_FILE=%t-static.profraw %run %t-static
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RUN: env LLVM_PROFILE_FILE=%t-shared.profraw %run %t-shared
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RUN: llvm-profdata merge -o %t-static.profdata %t-static.profraw
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RUN: llvm-profdata merge -o %t-shared.profdata %t-shared.profraw
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RUN: %clang_profuse=%t-static.profdata -o %t-a.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-a.cpp
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RUN: %clang_profuse=%t-shared.profdata -o %t-a.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-a.cpp
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RUN: diff %t-a.static.ll %t-a.shared.ll
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RUN: %clang_profuse=%t-static.profdata -o %t-b.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-b.cpp
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RUN: %clang_profuse=%t-shared.profdata -o %t-b.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-b.cpp
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RUN: diff %t-b.static.ll %t-b.shared.ll
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RUN: %clang_profuse=%t-static.profdata -o %t-main.static.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-main.cpp
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RUN: %clang_profuse=%t-shared.profdata -o %t-main.shared.ll -S -emit-llvm %S/../Inputs/instrprof-dynamic-main.cpp
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RUN: diff %t-main.static.ll %t-main.shared.ll
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import subprocess
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def getRoot(config):
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if not config.parent:
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return config
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return getRoot(config.parent)
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def is_gold_linker_available():
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if not config.gold_executable:
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return False
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try:
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ld_cmd = subprocess.Popen([config.gold_executable, '--help'], stdout = subprocess.PIPE)
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ld_out = ld_cmd.stdout.read().decode()
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ld_cmd.wait()
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except:
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return False
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if not '-plugin' in ld_out:
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return False
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clang_cmd = subprocess.Popen([config.clang, '-fuse-ld=gold', '-xc', '-'],
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stdin = subprocess.PIPE,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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clang_err = clang_cmd.communicate('int main() { return 0; }')[1]
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if not 'invalid linker' in clang_err:
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return True
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return False
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root = getRoot(config)
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if root.host_os not in ['Linux'] or not is_gold_linker_available():
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config.unsupported = True
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