[compiler-rt] [llvm] [asan] Catch `initialization-order-fiasco` in modules without globals (PR #104621)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-ve-ninja` running on `hpce-ve-main` while building `compiler-rt,llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/12/builds/3971

Here is the relevant piece of the build log for the reference:
```
Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/ve-linux.py ...' (failure)
...
[299/305] Linking CXX executable tools/clang/unittests/Driver/ClangDriverTests
[300/305] Linking CXX executable tools/clang/unittests/CodeGen/ClangCodeGenTests
[301/305] Linking CXX executable tools/clang/unittests/Tooling/ToolingTests
[302/305] Linking CXX executable tools/clang/unittests/Frontend/FrontendTests
[303/305] Linking CXX executable tools/clang/unittests/Interpreter/ExceptionTests/ClangReplInterpreterExceptionTests
[304/305] Linking CXX executable tools/clang/unittests/Interpreter/ClangReplInterpreterTests
[304/305] Running the Clang regression tests
-- Testing: 20986 tests, 48 workers --
llvm-lit: /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/llvm/utils/lit/lit/llvm/config.py:508: note: using clang: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang
Testing:  0.. 10.. 20.. 30
FAIL: Clang :: CodeGen/sanitize-ignorelist-mainfile.c (7502 of 20986)
******************** TEST 'Clang :: CodeGen/sanitize-ignorelist-mainfile.c' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: rm -rf /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp && split-file /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp && cd /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp
+ rm -rf /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp
+ split-file /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp
+ cd /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp
RUN: at line 3: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -emit-llvm -triple x86_64 -fsanitize=address,alignment a.c -o - | /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c --check-prefixes=CHECK,DEFAULT
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -emit-llvm -triple x86_64 -fsanitize=address,alignment a.c -o -
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c --check-prefixes=CHECK,DEFAULT
RUN: at line 4: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -emit-llvm -triple x86_64 -fsanitize=address,alignment -fsanitize-ignorelist=a.list a.c -o - | /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c --check-prefixes=CHECK,IGNORE
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c --check-prefixes=CHECK,IGNORE
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -emit-llvm -triple x86_64 -fsanitize=address,alignment -fsanitize-ignorelist=a.list a.c -o -
/scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c:35:16: error: IGNORE-NOT: excluded string found in input
// IGNORE-NOT: @___asan_gen_
               ^
<stdin>:9:1: note: found here
@___asan_gen_ = private constant [4 x i8] c"a.c\00", align 1
^~~~~~~~~~~~~

Input file: <stdin>
Check file: /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c

-dump-input=help explains the following input dump.

Input was:
<<<<<<
        1: ; ModuleID = 'a.c' 
        2: source_filename = "a.c" 
        3: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" 
        4: target triple = "x86_64" 
        5:  
        6: @global_h = global i32 0, no_sanitize_address, align 4 
        7: @global_c = global i32 0, no_sanitize_address, align 4 
        8: @llvm.used = appending global [1 x ptr] [ptr @asan.module_ctor], section "llvm.metadata" 
        9: @___asan_gen_ = private constant [4 x i8] c"a.c\00", align 1 
Step 8 (check-llvm) failure: check-llvm (failure)
...
[299/305] Linking CXX executable tools/clang/unittests/Driver/ClangDriverTests
[300/305] Linking CXX executable tools/clang/unittests/CodeGen/ClangCodeGenTests
[301/305] Linking CXX executable tools/clang/unittests/Tooling/ToolingTests
[302/305] Linking CXX executable tools/clang/unittests/Frontend/FrontendTests
[303/305] Linking CXX executable tools/clang/unittests/Interpreter/ExceptionTests/ClangReplInterpreterExceptionTests
[304/305] Linking CXX executable tools/clang/unittests/Interpreter/ClangReplInterpreterTests
[304/305] Running the Clang regression tests
-- Testing: 20986 tests, 48 workers --
llvm-lit: /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/llvm/utils/lit/lit/llvm/config.py:508: note: using clang: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang
Testing:  0.. 10.. 20.. 30
FAIL: Clang :: CodeGen/sanitize-ignorelist-mainfile.c (7502 of 20986)
******************** TEST 'Clang :: CodeGen/sanitize-ignorelist-mainfile.c' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: rm -rf /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp && split-file /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp && cd /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp
+ rm -rf /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp
+ split-file /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp
+ cd /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/tools/clang/test/CodeGen/Output/sanitize-ignorelist-mainfile.c.tmp
RUN: at line 3: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -emit-llvm -triple x86_64 -fsanitize=address,alignment a.c -o - | /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c --check-prefixes=CHECK,DEFAULT
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -emit-llvm -triple x86_64 -fsanitize=address,alignment a.c -o -
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c --check-prefixes=CHECK,DEFAULT
RUN: at line 4: /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -emit-llvm -triple x86_64 -fsanitize=address,alignment -fsanitize-ignorelist=a.list a.c -o - | /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c --check-prefixes=CHECK,IGNORE
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/FileCheck /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c --check-prefixes=CHECK,IGNORE
+ /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/bin/clang -cc1 -internal-isystem /scratch/buildbot/bothome/clang-ve-ninja/build/build_llvm/lib/clang/20/include -nostdsysteminc -emit-llvm -triple x86_64 -fsanitize=address,alignment -fsanitize-ignorelist=a.list a.c -o -
/scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c:35:16: error: IGNORE-NOT: excluded string found in input
// IGNORE-NOT: @___asan_gen_
               ^
<stdin>:9:1: note: found here
@___asan_gen_ = private constant [4 x i8] c"a.c\00", align 1
^~~~~~~~~~~~~

Input file: <stdin>
Check file: /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/CodeGen/sanitize-ignorelist-mainfile.c

-dump-input=help explains the following input dump.

Input was:
<<<<<<
        1: ; ModuleID = 'a.c' 
        2: source_filename = "a.c" 
        3: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" 
        4: target triple = "x86_64" 
        5:  
        6: @global_h = global i32 0, no_sanitize_address, align 4 
        7: @global_c = global i32 0, no_sanitize_address, align 4 
        8: @llvm.used = appending global [1 x ptr] [ptr @asan.module_ctor], section "llvm.metadata" 
        9: @___asan_gen_ = private constant [4 x i8] c"a.c\00", align 1 

```

https://github.com/llvm/llvm-project/pull/104621