Swift 5.10 crashing when -cross-module-optimization is enabled

[mman]

Description

I have a fairly minimal package with couple dependencies including NIO and SwiftPrometheus. Compiling via official Docker image against swift 5.9 worked nicely, crashes with 5.10 when -cross-module-optimization is enabled.

Reproduction

Stack dump

...
#27 202.7 [990/993] Compiling NIOHPACK DynamicHeaderTable.swift
#27 202.8 [991/993] Compiling NIOExtras DebugInboundEventsHandler.swift
#27 204.1 error: compile command failed due to signal 4 (use -v to see invocation)
#27 204.1 Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
#27 204.1 Stack dump:
#27 204.1 0.	Program arguments: /usr/bin/swift-frontend -frontend -c /root/relay-swift/.build/checkouts/websocket-kit/Sources/WebSocketKit/Concurrency/WebSocket+Concurrency.swift /root/relay-swift/.build/checkouts/websocket-kit/Sources/WebSocketKit/Exports.swift /root/relay-swift/.build/checkouts/websocket-kit/Sources/WebSocketKit/HTTPUpgradeRequestHandler.swift /root/relay-swift/.build/checkouts/websocket-kit/Sources/WebSocketKit/WebSocket+Connect.swift /root/relay-swift/.build/checkouts/websocket-kit/Sources/WebSocketKit/WebSocket.swift /root/relay-swift/.build/checkouts/websocket-kit/Sources/WebSocketKit/WebSocketClient.swift /root/relay-swift/.build/checkouts/websocket-kit/Sources/WebSocketKit/WebSocketHandler.swift -supplementary-output-file-map /tmp/TemporaryDirectory.qEEO0r/supplementaryOutputs-1 -target x86_64-unknown-linux-gnu -disable-objc-interop -I /root/relay-swift/.build/x86_64-unknown-linux-gnu/release -g -module-cache-path /root/relay-swift/.build/x86_64-unknown-linux-gnu/release/ModuleCache -suppress-warnings -swift-version 5 -O -D SWIFT_PACKAGE -new-driver-path /usr/bin/swift-driver -empty-abi-descriptor -resource-dir /usr/lib/swift -Xcc -fmodule-map-file=/root/relay-swift/.build/x86_64-unknown-linux-gnu/release/CNIOSHA1.build/module.modulemap -Xcc -I -Xcc /root/relay-swift/.build/checkouts/swift-nio/Sources/CNIOSHA1/include -Xcc -fmodule-map-file=/root/relay-swift/.build/x86_64-unknown-linux-gnu/release/CNIOBoringSSLShims.build/module.modulemap -Xcc -I -Xcc /root/relay-swift/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSLShims/include -Xcc -fmodule-map-file=/root/relay-swift/.build/x86_64-unknown-linux-gnu/release/CNIOBoringSSL.build/module.modulemap -Xcc -I -Xcc /root/relay-swift/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/include -Xcc -fmodule-map-file=/root/relay-swift/.build/x86_64-unknown-linux-gnu/release/CNIOLLHTTP.build/module.modulemap -Xcc -I -Xcc /root/relay-swift/.build/checkouts/swift-nio/Sources/CNIOLLHTTP/include -Xcc -fmodule-map-file=/root/relay-swift/.build/checkouts/swift-atomics/Sources/_AtomicsShims/include/module.modulemap -Xcc -I -Xcc /root/relay-swift/.build/checkouts/swift-atomics/Sources/_AtomicsShims/include -Xcc -fmodule-map-file=/root/relay-swift/.build/checkouts/swift-nio/Sources/CNIOWindows/include/module.modulemap -Xcc -I -Xcc /root/relay-swift/.build/checkouts/swift-nio/Sources/CNIOWindows/include -Xcc -fmodule-map-file=/root/relay-swift/.build/x86_64-unknown-linux-gnu/release/CNIOLinux.build/module.modulemap -Xcc -I -Xcc /root/relay-swift/.build/checkouts/swift-nio/Sources/CNIOLinux/include -Xcc -fmodule-map-file=/root/relay-swift/.build/x86_64-unknown-linux-gnu/release/CNIODarwin.build/module.modulemap -Xcc -I -Xcc /root/relay-swift/.build/checkouts/swift-nio/Sources/CNIODarwin/include -Xcc -fmodule-map-file=/root/relay-swift/.build/x86_64-unknown-linux-gnu/release/CNIOAtomics.build/module.modulemap -Xcc -I -Xcc /root/relay-swift/.build/checkouts/swift-nio/Sources/CNIOAtomics/include -Xcc -fPIC -Xcc -g -Xcc -fno-omit-frame-pointer -module-name WebSocketKit -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -parse-as-library -num-threads 8 -o /root/relay-swift/.build/x86_64-unknown-linux-gnu/release/WebSocketKit.build/WebSocket+Concurrency.swift.o -o /root/relay-swift/.build/x86_64-unknown-linux-gnu/release/WebSocketKit.build/Exports.swift.o -o /root/relay-swift/.build/x86_64-unknown-linux-gnu/release/WebSocketKit.build/HTTPUpgradeRequestHandler.swift.o -o /root/relay-swift/.build/x86_64-unknown-linux-gnu/release/WebSocketKit.build/WebSocket+Connect.swift.o -o /root/relay-swift/.build/x86_64-unknown-linux-gnu/release/WebSocketKit.build/WebSocket.swift.o -o /root/relay-swift/.build/x86_64-unknown-linux-gnu/release/WebSocketKit.build/WebSocketClient.swift.o -o /root/relay-swift/.build/x86_64-unknown-linux-gnu/release/WebSocketKit.build/WebSocketHandler.swift.o -cross-module-optimization
#27 204.1 1.	Swift version 5.10 (swift-5.10-RELEASE)
#27 204.1 2.	Compiling with the current language version
#27 204.1 3.	While evaluating request ExecuteSILPipelineRequest(Run pipelines { Mandatory Diagnostic Passes + Enabling Optimization Passes } on SIL for WebSocketKit)
#27 204.1 4.	While running pass #9568 SILModuleTransform "MandatoryPerformanceOptimizations".
#27 204.1 Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
#27 204.1 /usr/bin/swift-frontend(+0x61b7623)[0x55555b70b623]
#27 204.1 /usr/bin/swift-frontend(+0x61b55de)[0x55555b7095de]
#27 204.1 /usr/bin/swift-frontend(+0x61b799a)[0x55555b70b99a]
#27 204.1 /lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7ffffdce0520]
#27 204.1 /usr/bin/swift-frontend(+0xb6c91c)[0x5555560c091c]
#27 204.1 /usr/bin/swift-frontend(+0x1394496)[0x5555568e8496]
#27 204.1 /usr/bin/swift-frontend(+0x139580a)[0x5555568e980a]
#27 204.1 /usr/bin/swift-frontend(+0x1391628)[0x5555568e5628]
#27 204.1 /usr/bin/swift-frontend(+0x13915db)[0x5555568e55db]
#27 204.1 /usr/bin/swift-frontend(+0x13c856a)[0x55555691c56a]
#27 204.1 /usr/bin/swift-frontend(+0x13a8170)[0x5555568fc170]
#27 204.1 /usr/bin/swift-frontend(+0x1391742)[0x5555568e5742]
#27 204.1 /usr/bin/swift-frontend(+0x13a8fd1)[0x5555568fcfd1]
#27 204.1 /usr/bin/swift-frontend(+0xe89ed7)[0x5555563dded7]
#27 204.1 /usr/bin/swift-frontend(+0xc5ef11)[0x5555561b2f11]
#27 204.1 /usr/bin/swift-frontend(+0xc5e18b)[0x5555561b218b]
#27 204.1 /usr/bin/swift-frontend(+0xc614b9)[0x5555561b54b9]
#27 204.1 /usr/bin/swift-frontend(+0xc5ff7d)[0x5555561b3f7d]
#27 204.1 /usr/bin/swift-frontend(+0xaf92c0)[0x55555604d2c0]
#27 204.1 /lib/x86_64-linux-gnu/libc.so.6(+0x29d90)[0x7ffffdcc7d90]
#27 204.1 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80)[0x7ffffdcc7e40]
#27 204.1 /usr/bin/swift-frontend(+0xaf83f5)[0x55555604c3f5]
#27 204.1 
#27 204.1 *** Signal 4: Backtracing from 0x5555560c091c... done ***
#27 204.1 
#27 204.1 *** Program crashed: Illegal instruction at 0x00005555560c091c ***
#27 204.1 
#27 204.1 Thread 0 "swift-frontend" crashed:
#27 204.1 
#27 204.1 0  0x00005555560c091c closure #1 in variable initialization expression of mandatoryPerformanceOptimizations + 3164 in swift-frontend
#27 204.1 
#27 204.1 
#27 204.1 Registers:
#27 204.1 
#27 204.1 rax 0x0000000000000000  0
#27 204.1 rdx 0x000055555e3a1e70  70 b4 1c 5f 55 55 00 00 88 53 b2 5f 55 55 00 00  p´·_UU···S²_UU··
#27 204.1 rcx 0x0000555560241af8  f8 1a 24 60 55 55 00 00 f8 1a 24 60 55 55 00 00  ø·$`UU··ø·$`UU··
#27 204.1 rbx 0x00000003ffffffff  17179869183
#27 204.1 rsi 0x0000555560241a80  ff ff ff ff 03 00 00 00 f0 92 ac 5f 55 55 00 00  ÿÿÿÿ····ð·¬_UU··
#27 204.1 rdi 0x00000003ffffffff  17179869183
#27 204.1 rbp 0x0000555560241e80  b0 54 18 5e 55 55 00 00 ff ff ff ff 03 00 00 00  °T·^UU··ÿÿÿÿ····
#27 204.1 rsp 0x00007ffffffbd680  ed 3a 99 5c 55 55 00 00 57 2d 80 68 66 4d cd 17  í:·\UU··W-·hfMÍ·
#27 204.1  r8 0x000000000000000f  15
#27 204.1  r9 0x165667b19e3779f9  1609587929392839161
#27 204.1 r10 0x000055555c993b10  00 50 65 72 66 6f 72 6d 73 20 6f 70 74 69 6d 69  ·Performs optimi
#27 204.1 r11 0xc2b2ae3d27d4eb4f  14029467366897019727
#27 204.1 r12 0x0000555560241a78  b0 54 18 5e 55 55 00 00 ff ff ff ff 03 00 00 00  °T·^UU··ÿÿÿÿ····
#27 204.1 r13 0x0000555560241a78  b0 54 18 5e 55 55 00 00 ff ff ff ff 03 00 00 00  °T·^UU··ÿÿÿÿ····
#27 204.1 r14 0x00007ffffffbd688  57 2d 80 68 66 4d cd 17 d8 d1 1e 5e 55 55 00 00  W-·hfMÍ·ØÑ·^UU··
#27 204.1 r15 0x0000555560241e80  b0 54 18 5e 55 55 00 00 ff ff ff ff 03 00 00 00  °T·^UU··ÿÿÿÿ····
#27 204.1 rip 0x00005555560c091c  0f 0b 48 8d 3d d3 61 8d 06 4c 8d 0d c4 87 ca 06  ··H·=Óa··L··Ä·Ê·
#27 204.1 
#27 204.1 rflags 0x0000000000000246  ZF PF
#27 204.1 
#27 204.1 cs 0x0033  fs 0x0000  gs 0x0000
#27 204.1 
#27 204.1 
#27 204.1 Images (35 omitted):
#27 204.1 
#27 204.1 0x0000555555554000–0x000055555c2cde58 <no build ID> swift-frontend /usr/bin/swift-frontend
#27 204.1 
#27 204.1 Backtrace took 0.14s
#27 204.1 
#27 ERROR: process "/bin/sh -c swift build --configuration release -Xswiftc -g -Xswiftc -cross-module-optimization" did not complete successfully: exit code: 1
------
 > [builder 15/15] RUN --mount=type=ssh swift build --configuration release -Xswiftc -g -Xswiftc -cross-module-optimization:
204.1 
204.1 cs 0x0033  fs 0x0000  gs 0x0000
204.1 
204.1 
204.1 Images (35 omitted):
204.1 
204.1 0x0000555555554000–0x000055555c2cde58 <no build ID> swift-frontend /usr/bin/swift-frontend
204.1 
204.1 Backtrace took 0.14s
204.1 
------
ERROR: failed to solve: process "/bin/sh -c swift build --configuration release -Xswiftc -g -Xswiftc -cross-module-optimization" did not complete successfully: exit code: 1

Expected behavior

Compiling and working nicely under 5.9, should continue working on 5.10

Environment

Swift version 5.10 (swift-5.10-RELEASE)
Target: aarch64-unknown-linux-gnu

Additional information

Feel free to ask for more details if the stack does not include what is needed...