[Bug 299741] FreeBSD clang version 19.1.7: Stack realignment in presence of dynamic allocas is not supported withthis calling convention

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=299741

            Bug ID: 299741
           Summary: FreeBSD clang version 19.1.7: Stack realignment in
                    presence of dynamic allocas is not supported withthis
                    calling convention
           Product: Base System
           Version: 15.1-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: dinoex@FreeBSD.org

Created attachment 276117
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=276117&action=edit
zend_execute-e9daf5.c zend_execute-e9daf5.sh

stock FreeBSD 15.1-RELEASE-p2

I build lang/php83 successful with address-sanitizer

creating a Makefile.local:
CONFIGURE_ARGS+= --enable-address-sanitizer

The I tried the build of lang/php85 with address-sanitizer too.
clang++ throws a fatal error.

# clang++ -v
FreeBSD clang version 19.1.7 (https://github.com/llvm/llvm-project.git
llvmorg-19.1.7-0-gcd708029e0b2)
Target: x86_64-unknown-freebsd15.1
Thread model: posix
InstalledDir: /usr/bin


Logfile:
/bin/sh /usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/libtool --silent
--preserve-dup-deps --tag=CC --mode=compile cc -Isapi/phpdbg/
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/sapi/phpdbg/
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/main
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/ext/date/lib
-I/usr/local/include/libxml2 -I/usr/local/include
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/ext/lexbor
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/ext/uri/uriparser/include
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/TSRM
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/Zend -isystem
/usr/local/include -D_GNU_SOURCE  -fno-common -Wstrict-prototypes
-Wformat-truncation -Wall -Wextra -Wno-unused-parameter -Wno-sign-compare -O2
-pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing
-ffp-contract=off -fvisibility=hidden -DNDEBUG -DZEND_SIGNALS
-fsanitize=address -DZEND_TRACK_ARENA_ALLOC -fno-omit-frame-pointer  
-DZEND_ENABLE_STATIC_TSRMLS_CACHE=1 -c
/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/sapi/phpdbg/phpdbg_lexer.c
-o sapi/phpdbg/ph
pdbg_lexer.lo  -MMD -MF sapi/phpdbg/phpdbg_lexer.dep -MT
sapi/phpdbg/phpdbg_lexer.lo
--- Zend/zend_execute.lo ---

fatal error: error in backend: Stack realignment in presence of dynamic allocas
is not supported withthis calling convention.
PLEASE submit a bug report to https://bugs.freebsd.org/submit/ and include the
crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.      Program arguments: cc -IZend/
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/Zend/
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/main
-I/usr/obj/ports/usr/ports/lang/php85/work/
php-8.5.12 -I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/ext/date/lib
-I/usr/local/include/libxml2 -I/usr/local/include
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/ext/lexbor
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/ext/uri/uriparser/include
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/TSRM
-I/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/Zend -isystem
/usr/local/include -D_GNU_SOURCE -fno-common -Wstrict-prototypes
-Wformat-truncation -Wall -Wextra -Wno-unused-parameter -Wno-sign-compare -O2
-pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing
-ffp-contract=off -fvisibility=hidden -DNDEBUG -DZEND_SIGNALS
-fsanitize=address -DZEND_TRACK_ARENA_ALLOC -fno-omit-frame-pointer
-DZEND_ENABLE_STATIC_TSRMLS_CACHE=1 -DSHADOW_STACK_SYSCALL=0 -c
/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/Zend/zend_execute.c -MMD
-MF Zend/zend_execute.dep -MT Zend/zend_execute.lo -fPIC -DPIC -o
Zend/.libs/zend_execute.o
1.      <eof> parser at end of file
2.      Code generation
3.      Running pass 'Function Pass Manager' on module
'/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12/Zend/zend_execute.c'.
4.      Running pass 'Finalize ISel and expand pseudo-instructions' on function
'@ZEND_ASSIGN_SPEC_VAR_CONST_RETVAL_USED_TAILCALL_HANDLER'
 #0 0x00002e1cd8b62779 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
/usr/src/contrib/llvm-project/llvm/lib/Support/Unix/Signals.inc:0:13
 #1 0x00002e1cd8b60635 llvm::sys::RunSignalHandlers()
/usr/src/contrib/llvm-project/llvm/lib/Support/Signals.cpp:106:18
 #2 0x00002e1cd8b10870
/usr/src/contrib/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:73:5
 #3 0x00002e1cd8b1082e (/usr/lib/libprivatellvm.so.19+0x331082e)
 #4 0x00002e1cd8b502fc llvm::sys::Process::Exit(int, bool)
/usr/src/contrib/llvm-project/llvm/lib/Support/Process.cpp:118:5
 #5 0x00002e14af34cb57 (/usr/bin/cc+0xcb57)
 #6 0x00002e1cd8b1e428 __is_long
/usr/obj/amd64.amd64/tmp/usr/include/c++/v1/string:1880:12
 #7 0x00002e1cd8b1e428 ~basic_string
/usr/obj/amd64.amd64/tmp/usr/include/c++/v1/string:1211:9
 #8 0x00002e1cd8b1e428 llvm::report_fatal_error(llvm::Twine const&, bool)
/usr/src/contrib/llvm-project/llvm/lib/Support/ErrorHandling.cpp:104:5
 #9 0x00002e1cd8b1e2c9 (/usr/lib/libprivatellvm.so.19+0x331e2c9)
#10 0x00002e1cd955fc87 (/usr/lib/libprivatellvm.so.19+0x3d5fc87)
#11 0x00002e1cd7dd1931 llvm::MachineRegisterInfo::freezeReservedRegs()
/usr/src/contrib/llvm-project/llvm/lib/CodeGen/MachineRegisterInfo.cpp:523:3
#12 0x00002e1cd7aeb496 runImpl
/usr/src/contrib/llvm-project/llvm/lib/CodeGen/FinalizeISel.cpp:0:8
#13 0x00002e1cd7aeb570
/usr/src/contrib/llvm-project/llvm/lib/CodeGen/FinalizeISel.cpp:89:22
#14 0x00002e1cd7d40dcd
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
/usr/src/contrib/llvm-project/llvm/lib/CodeGen/MachineFunctionPass.cpp:0:13
#15 0x00002e1cd854ff62 llvm::FPPassManager::runOnFunction(llvm::Function&)
/usr/src/contrib/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1440:27
#16 0x00002e1cd8555ba4 llvm::FPPassManager::runOnModule(llvm::Module&)
/usr/src/contrib/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1486:13
#17 0x00002e1cd85507b3 runOnModule
/usr/src/contrib/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:0:27
#18 0x00002e1cd85507b3 llvm::legacy::PassManagerImpl::run(llvm::Module&)
/usr/src/contrib/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:541:44
#18 0x00002e1cd85507b3 llvm::legacy::PassManagerImpl::run(llvm::Module&)
/usr/src/contrib/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:541:44
#19 0x00002e1cd37db633 ~TimeTraceScope
/usr/src/contrib/llvm-project/llvm/include/llvm/Support/TimeProfiler.h:189:9
#20 0x00002e1cd37db633 RunCodegenPipeline
/usr/src/contrib/llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1158:3
#21 0x00002e1cd37db633 EmitAssembly
/usr/src/contrib/llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1180:3
#22 0x00002e1cd37db633 clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef,
llvm::Module*, clang::BackendAction,
llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>,
std::__1::unique_ptr<llvm::raw_pwrite_stream,
std::__1::default_delete<llvm::raw_pwrite_stream>>, clang::BackendConsumer*)
/usr/src/contrib/llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1341:13
#23 0x00002e1cd3b79843 reset
/usr/obj/amd64.amd64/tmp/usr/include/c++/v1/__memory/unique_ptr.h:289:29
#24 0x00002e1cd3b79843 ~unique_ptr
/usr/obj/amd64.amd64/tmp/usr/include/c++/v1/__memory/unique_ptr.h:261:71
#25 0x00002e1cd3b79843
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenAction.cpp:354:3
#26 0x00002e1cd41fe4c9 begin
/usr/obj/amd64.amd64/tmp/usr/include/c++/v1/vector:1412:28
#27 0x00002e1cd41fe4c9
finalize<std::__1::vector<std::__1::unique_ptr<clang::TemplateInstantiationCallback,
std::__1::default_delete<clang::TemplateInstantiationCallback> >,
std::__1::allocator<std::__1::unique_ptr<clang::TemplateInstantiationCallback,
std::__1::default_delete<clang::TemplateInstantiationCallback> > > > >
/usr/src/contrib/llvm-project/clang/include/clang/Sema/TemplateInstCallback.h:54:16
#28 0x00002e1cd41fe4c9 clang::ParseAST(clang::Sema&, bool, bool)
/usr/src/contrib/llvm-project/clang/lib/Parse/ParseAST.cpp:191:3
#29 0x00002e1cd408fae9 clang::FrontendAction::Execute()
/usr/src/contrib/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1082:10
#30 0x00002e1cd400cbf4 getPtr
/usr/src/contrib/llvm-project/llvm/include/llvm/Support/Error.h:282:12
#31 0x00002e1cd400cbf4 operator bool
/usr/src/contrib/llvm-project/llvm/include/llvm/Support/Error.h:242:16
#32 0x00002e1cd400cbf4
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
/usr/src/contrib/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:1061:23
#33 0x00002e1cd4115f1c
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
/usr/src/contrib/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:280:25
#34 0x00002e14af34c84e cc1_main
/usr/src/contrib/llvm-project/clang/tools/driver/cc1_main.cpp:284:15#35
0x00002e14af359d03 ExecuteCC1Tool
/usr/src/contrib/llvm-project/clang/tools/driver/driver.cpp:217:12
#36 0x00002e1cd3cec18e operator()
/usr/src/contrib/llvm-project/clang/lib/Driver/Job.cpp:440:30
#37 0x00002e1cd3cec18e callback_fn<(lambda at
/usr/src/contrib/llvm-project/clang/lib/Driver/Job.cpp:440:22)>
/usr/src/contrib/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12
#38 0x00002e1cd8b10806 operator()
/usr/src/contrib/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:0:12
#39 0x00002e1cd8b10806
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>)
/usr/src/contrib/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:426:3
#40 0x00002e1cd3ceb908
clang::driver::CC1Command::Execute(llvm::ArrayRef<std::__1::optional<llvm::StringRef>>,
std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char>>*, bool*) const
/usr/src/contrib/llvm-project/clang/lib/Driver/Job.cpp:440:7
#41 0x00002e1cd3caf444
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&, bool) const
/usr/src/contrib/llvm-project/clang/lib/Driver/Compilation.cpp:199:15
#42 0x00002e1cd3caf6dc
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::__1::pair<int, clang::driver::Command const*>>&,
bool) const
/usr/src/contrib/llvm-project/clang/lib/Driver/Compilation.cpp:253:13
#43 0x00002e1cd3ccc0a0 empty
/usr/src/contrib/llvm-project/llvm/include/llvm/ADT/SmallVector.h:95:46#44
0x00002e1cd3ccc0a0
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::__1::pair<int, clang::driver::Command const*>>&)
/usr/src/contrib/llvm-project/clang/lib/Driver/Driver.cpp:1946:23
#45 0x00002e14af359478 clang_main
/usr/src/contrib/llvm-project/clang/tools/driver/driver.cpp:391:21#46
0x00002e14af357a42 main /usr/src/usr.bin/clang/clang/clang-driver.cpp:17:10
#47 0x00002e1cdcbfa28f __libc_start1 /usr/src/lib/libc/csu/libc_start1.c:180:2
cc: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
FreeBSD clang version 19.1.7 (https://github.com/llvm/llvm-project.git
llvmorg-19.1.7-0-gcd708029e0b2)
Target: x86_64-unknown-freebsd15.1
Thread model: posix
InstalledDir: /usr/bin
cc: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
cc: note: diagnostic msg: /tmp/zend_execute-e9daf5.c
cc: note: diagnostic msg: /tmp/zend_execute-e9daf5.sh
cc: note: diagnostic msg: 

********************
*** [Zend/zend_execute.lo] Error code 1

make: stopped making "all" in
/usr/obj/ports/usr/ports/lang/php85/work/php-8.5.12
make: 1 error

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