Bug #21167: Visual Studio 2022 17.13.x couldn't build ruby.exe

• Status: Third Party's Issue
• Assignee: -
• Target version: -
• Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN

[hsbt (Hiroshi SHIBATA)]

miniruby.exe built by Visual Studio 2022 17.13.0-2 is not working with our build process.

user32.lib advapi32.lib shell32.lib ws2_32.lib iphlpapi.lib gmp.lib imagehlp.lib shlwapi.lib bcrypt.lib
linking miniruby.exe
   Creating library miniruby.lib and object miniruby.exp
[BUG] heap_idx_for_size: allocation size too large (size=56u, heap_idx=891288545u)
ruby 3.5.0dev (2025-03-03T02:17:14Z master a47e686cb6) [x64-mswin64_140]
-- Control frame information -----------------------------------------------
c:0001 p:---- s:0003 e:000002 DUMMY  [FINISH]
-- Threading information ---------------------------------------------------
Total ractor count: 0
Ruby thread count for this ractor: 0
-- C level backtrace information -------------------------------------------
C:\WINDOWS\SYSTEM32\ntdll.dll(ZwWaitForSingleObject+0x14) [0x00007FF9057BF854]
C:\WINDOWS\System32\KERNELBASE.dll(WaitForSingleObjectEx+0xaf) [0x00007FF902CFCE1F]
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(rb_print_backtrace+0x3e) [0x00007FF63DC37E7E] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\vm_dump.c:859
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(rb_vm_bugreport+0x1ba) [0x00007FF63DC3803E] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\vm_dump.c:1170
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(rb_bug_without_die_internal+0x72) [0x00007FF63DB0255A] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\error.c:1097
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(rb_bug+0x20) [0x00007FF63DB02448] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\error.c:1117
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(newobj_of+0x1e7) [0x00007FF63DB186FB] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\gc.c:1007
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(typed_data_alloc+0xc3) [0x00007FF63DB212CF] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\gc.c:1084
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(rb_data_typed_object_zalloc+0x3b) [0x00007FF63DB19797] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\gc.c:1107
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(pin_array_list_new+0x25) [0x00007FF63DC1B5D9] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\vm.c:4387
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(Init_vm_objects+0x17) [0x00007FF63DC1665B] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\vm.c:4446
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(ruby_setup+0x3f) [0x00007FF63DB08C1B] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\eval.c:83
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(ruby_init+0x9) [0x00007FF63DB089AD] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\eval.c:98
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(wmain+0x3a) [0x00007FF63DA8103A] C:\Users\hsbt\DevDrive\github.com\ruby\ruby\main.c:51
C:\Users\hsbt\DevDrive\github.com\ruby\ruby.build\2022\miniruby.exe(__scrt_common_main_seh+0x10c) [0x00007FF63DC9DE88] D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288
C:\WINDOWS\System32\KERNEL32.DLL(BaseThreadInitThunk+0x17) [0x00007FF90409E8D7]
-- Other runtime information -----------------------------------------------
NMAKE : fatal error U1077: '@ miniruby.exe -v' : return code '0x3'
Stop.

I disabled that version on our CI temporary.

• https://github.com/ruby/ruby/pull/12830
• https://github.com/ruby/actions/pull/81

[nobu (Nobuyoshi Nakada)]

I think it is a bug in VC 19.43.34808 for x64.

This is the code compiled heap_idx_for_size with VC 19.43.34808 for x64

	mov	r8d, 63					; 0000003fH
	sub	r8d, DWORD PTR r$2[rsp]
	lea	rcx, QWORD PTR [r10+39]
	mul	rcx
	shr	rdx, 5
	lea	rax, QWORD PTR [rdx-1]
	bsr	rcx, rax
	mov	DWORD PTR r$2[rsp], ecx
	mov	ecx, 64					; 00000040H
	mov	eax, ecx
	cmovne	eax, r8d

If bsr reset the zero flag, cmovne at the end copies r8d which is calculated prior to bsr, (probably to reduce use of intermediate registers).
However r8d is calculated from r$2[rsp] which should be the result of bsr and has not been set at the time of that calculation.

[nobu (Nobuyoshi Nakada)]

Reported at https://developercommunity.visualstudio.com/t/Use-of-the-result-of-bsr-before-that-i/10862351

[hsbt (Hiroshi SHIBATA)]

@nobu (Nobuyoshi Nakada) found miniruby.exe is working with -O2 instead of -O2s. But we faced another issue with:

linking shared-library x64-vcruntime140-ruby350.dll
x64-vcruntime140-ruby350.def : error LNK2001: unresolved external symbol Avx2WmemEnabledWeakValue
x64-vcruntime140-ruby350.def : error LNK2001: unresolved external symbol _isa_available_default
dummy.lib : fatal error LNK1120: 2 unresolved externals

https://github.com/ruby/ruby/pull/12853

It happened with vs2019/2015 too.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Third Party's Issue

According to the Microsoft engineering team, already this bug has been fixed internally.
https://developercommunity.visualstudio.com/t/Use-of-the-result-of-bsr-before-that-i/10862351#T-N10863092-N10864280