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https://github.com/capstone-engine/llvm-capstone.git
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[profile] Add -fprofile-instr-generate tests for weak definition and various linkages
This commit is contained in:
Fangrui Song
parent
aba67ba784
commit
effb87dfa8
8
compiler-rt/test/profile/Linux/coverage-linkage-lld.cpp
Normal file
8
compiler-rt/test/profile/Linux/coverage-linkage-lld.cpp
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@ -0,0 +1,8 @@
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// REQUIRES: lld-available
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/// With lld --gc-sections we can ensure discarded[01] and their profc/profd
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/// variables are discarded.
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -fuse-ld=lld -Wl,--gc-sections %S/coverage-linkage.cpp -o %t
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// RUN: llvm-nm %t | FileCheck %s
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// CHECK-NOT: discarded{{.*}}
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46
compiler-rt/test/profile/Linux/coverage-linkage.cpp
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46
compiler-rt/test/profile/Linux/coverage-linkage.cpp
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@ -0,0 +1,46 @@
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/// Test instrumentation can handle various linkages.
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// RUN: %clang_profgen -fcoverage-mapping %s -o %t
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -Wl,--gc-sections %s -o %t
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s
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// CHECK: {{.*}}external{{.*}}:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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// CHECK: {{.*}}weak{{.*}}:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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// CHECK: main:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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// CHECK: {{.*}}internal{{.*}}:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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// CHECK: {{.*}}linkonce_odr{{.*}}:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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#include <stdio.h>
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void discarded0() {}
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__attribute__((weak)) void discarded1() {}
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void external() { puts("external"); }
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__attribute__((weak)) void weak() { puts("weak"); }
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static void internal() { puts("internal"); }
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__attribute__((noinline)) inline void linkonce_odr() { puts("linkonce_odr"); }
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int main() {
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internal();
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external();
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weak();
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linkonce_odr();
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}
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103
compiler-rt/test/profile/Linux/coverage-weak-lld.cpp
Normal file
103
compiler-rt/test/profile/Linux/coverage-weak-lld.cpp
Normal file
@ -0,0 +1,103 @@
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// REQUIRES: lld-available
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// RUN: %clang_profgen -fcoverage-mapping -c %s -o %t0.o
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// RUN: %clang_profgen -fcoverage-mapping -c %s -DOBJ_1 -o %t1.o
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// RUN: %clang_profgen -fcoverage-mapping -c %s -DOBJ_2 -o %t2.o
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/// An external symbol can override a weak external symbol.
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld %t0.o %t1.o -o %t1
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t1 | FileCheck %s --check-prefix=CHECK1
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE1_NOGC
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,--gc-sections %t0.o %t1.o -o %t1
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t1 | FileCheck %s --check-prefix=CHECK1
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE1_NOGC
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld %t0.o %t2.o -o %t2
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t2 | FileCheck %s --check-prefix=CHECK2
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE2_NOGC
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,--gc-sections %t0.o %t2.o -o %t2
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t2 | FileCheck %s --check-prefix=CHECK2
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE2_GC
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/// Repeat the above tests with -ffunction-sections.
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -c %s -o %t0.o
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -c %s -DOBJ_1 -o %t1.o
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -c %s -DOBJ_2 -o %t2.o
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld %t0.o %t1.o -o %t1
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t1 | FileCheck %s --check-prefix=CHECK1
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE1_NOGC
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,--gc-sections %t0.o %t1.o -o %t1
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t1 | FileCheck %s --check-prefix=CHECK1
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE1_GC
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld %t0.o %t2.o -o %t2
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t2 | FileCheck %s --check-prefix=CHECK2
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE2_NOGC
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,--gc-sections %t0.o %t2.o -o %t2
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t2 | FileCheck %s --check-prefix=CHECK2
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE2_GC
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// CHECK1: strong
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// CHECK1: strong
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/// __profc__Z4weakv in %t1.o is local and has a zero value.
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/// Without GC it takes a duplicate entry.
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// PROFILE1_NOGC: _Z4weakv:
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// PROFILE1_NOGC-NEXT: Hash:
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// PROFILE1_NOGC-NEXT: Counters: 1
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// PROFILE1_NOGC-NEXT: Function count: 0
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// PROFILE1_NOGC: _Z4weakv:
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// PROFILE1_NOGC-NEXT: Hash:
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// PROFILE1_NOGC-NEXT: Counters: 1
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// PROFILE1_NOGC-NEXT: Function count: 2
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// PROFILE1_GC: _Z4weakv:
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// PROFILE1_GC-NEXT: Hash:
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// PROFILE1_GC-NEXT: Counters: 1
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// PROFILE1_GC-NEXT: Function count: 2
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// PROFILE1_GC-NOT: _Z4weakv:
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// CHECK2: weak
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// CHECK2: weak
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/// __profc__Z4weakv in %t2.o is weak and resolves to the value of %t0.o's copy.
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/// Without GC it takes a duplicate entry.
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// PROFILE2_NOGC: _Z4weakv:
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// PROFILE2_NOGC-NEXT: Hash:
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// PROFILE2_NOGC-NEXT: Counters: 1
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// PROFILE2_NOGC-NEXT: Function count: 2
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// PROFILE2_NOGC: _Z4weakv:
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// PROFILE2_NOGC-NEXT: Hash:
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// PROFILE2_NOGC-NEXT: Counters: 1
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// PROFILE2_NOGC-NEXT: Function count: 2
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// PROFILE2_GC: _Z4weakv:
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// PROFILE2_GC-NEXT: Hash:
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// PROFILE2_GC-NEXT: Counters: 1
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// PROFILE2_GC-NEXT: Function count: 2
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// PROFILE2_GC-NOT: _Z4weakv:
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#ifdef OBJ_1
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#include <stdio.h>
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void weak() { puts("strong"); }
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void foo() { weak(); }
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#elif defined(OBJ_2)
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#include <stdio.h>
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__attribute__((weak)) void weak() { puts("unreachable"); }
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void foo() { weak(); }
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#else
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#include <stdio.h>
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__attribute__((weak)) void weak() { puts("weak"); }
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void foo();
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int main() {
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foo();
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weak();
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}
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#endif
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11
compiler-rt/test/profile/Windows/coverage-linkage-lld.cpp
Normal file
11
compiler-rt/test/profile/Windows/coverage-linkage-lld.cpp
Normal file
@ -0,0 +1,11 @@
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// REQUIRES: lld-available
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/// With lld -opt:ref we can ensure discarded[01] and their profc/profd
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/// variables are discarded.
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -fuse-ld=lld -Wl,-debug:symtab,-opt:noref %S/coverage-linkage.cpp -o %t
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// RUN: llvm-nm %t | FileCheck %s --check-prefix=NOGC
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -fuse-ld=lld -Wl,-debug:symtab,-opt:ref %S/coverage-linkage.cpp -o %t
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// RUN: llvm-nm %t | FileCheck %s --check-prefix=GC
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// NOGC: T ?discarded{{.*}}
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// GC-NOT: T ?discarded{{.*}}
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46
compiler-rt/test/profile/Windows/coverage-linkage.cpp
Normal file
46
compiler-rt/test/profile/Windows/coverage-linkage.cpp
Normal file
@ -0,0 +1,46 @@
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/// Test instrumentation can handle various linkages.
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// RUN: %clang_profgen -fcoverage-mapping %s -o %t
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -Wl,-opt:ref %s -o %t
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s
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// CHECK: {{.*}}external{{.*}}:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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// CHECK: {{.*}}weak{{.*}}:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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// CHECK: main:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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// CHECK: {{.*}}internal{{.*}}:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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// CHECK: {{.*}}linkonce_odr{{.*}}:
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// CHECK-NEXT: Hash:
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// CHECK-NEXT: Counters: 1
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// CHECK-NEXT: Function count: 1
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#include <stdio.h>
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void discarded0() {}
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__attribute__((weak)) void discarded1() {}
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void external() { puts("external"); }
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__attribute__((weak)) void weak() { puts("weak"); }
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static void internal() { puts("internal"); }
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__attribute__((noinline)) inline void linkonce_odr() { puts("linkonce_odr"); }
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int main() {
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internal();
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external();
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weak();
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linkonce_odr();
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}
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85
compiler-rt/test/profile/Windows/coverage-weak-lld.cpp
Normal file
85
compiler-rt/test/profile/Windows/coverage-weak-lld.cpp
Normal file
@ -0,0 +1,85 @@
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// REQUIRES: lld-available
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// RUN: %clang_profgen -fcoverage-mapping -c %s -o %t0.o
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// RUN: %clang_profgen -fcoverage-mapping -c %s -DOBJ_1 -o %t1.o
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// RUN: %clang_profgen -fcoverage-mapping -c %s -DOBJ_2 -o %t2.o
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/// An external symbol can override a weak external symbol.
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,-opt:noref %t0.o %t1.o -o %t1
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t1 | FileCheck %s --check-prefix=CHECK1
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE1
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,-opt:ref %t0.o %t1.o -o %t1
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t1 | FileCheck %s --check-prefix=CHECK1
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE1
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/// link.exe does not support weak overridding weak.
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,-lldmingw,-opt:ref %t0.o %t2.o -o %t2
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t2 | FileCheck %s --check-prefix=CHECK2
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE2
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/// Repeat the above tests with -ffunction-sections (associative comdat).
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -c %s -o %t0.o
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -c %s -DOBJ_1 -o %t1.o
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// RUN: %clang_profgen -fcoverage-mapping -ffunction-sections -c %s -DOBJ_2 -o %t2.o
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,-opt:noref %t0.o %t1.o -o %t1
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t1 | FileCheck %s --check-prefix=CHECK1
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE1
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,-opt:ref %t0.o %t1.o -o %t1
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t1 | FileCheck %s --check-prefix=CHECK1
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE1
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// RUN: %clang_profgen -fcoverage-mapping -fuse-ld=lld -Wl,-lldmingw,-opt:ref %t0.o %t2.o -o %t2
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t2 | FileCheck %s --check-prefix=CHECK2
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// RUN: llvm-profdata show %t.profraw --all-functions | FileCheck %s --check-prefix=PROFILE2
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// CHECK1: strong
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// CHECK1: strong
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/// Document the current behavior:
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/// __profc_?weak@@YAXXZ in %t1.o is local and has a zero value.
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/// Without GC it takes a duplicate entry.
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// PROFILE1: ?weak@@YAXXZ:
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// PROFILE1-NEXT: Hash:
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// PROFILE1-NEXT: Counters: 1
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// PROFILE1-NEXT: Function count: 0
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// PROFILE1: ?weak@@YAXXZ:
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// PROFILE1-NEXT: Hash:
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// PROFILE1-NEXT: Counters: 1
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// PROFILE1-NEXT: Function count: 2
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// CHECK2: weak
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// CHECK2: weak
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// PROFILE2: ?weak@@YAXXZ:
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// PROFILE2-NEXT: Hash:
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// PROFILE2-NEXT: Counters: 1
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// PROFILE2-NEXT: Function count: 2
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// PROFILE2: ?weak@@YAXXZ:
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// PROFILE2-NEXT: Hash:
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// PROFILE2-NEXT: Counters: 1
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// PROFILE2-NEXT: Function count: 0
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#ifdef OBJ_1
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#include <stdio.h>
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void weak() { puts("strong"); }
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void foo() { weak(); }
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#elif defined(OBJ_2)
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#include <stdio.h>
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__attribute__((weak)) void weak() { puts("unreachable"); }
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void foo() { weak(); }
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#else
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#include <stdio.h>
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__attribute__((weak)) void weak() { puts("weak"); }
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void foo();
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int main() {
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foo();
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weak();
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}
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#endif
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