Self tests failed with Clang and prod flag

[lcheylus]

Describe the bug

Using Clang 16 with prod flag, some tests failed during self-test

Same types of errors with Clang16 + flag prod on Linux/amd64 and OpenBSD/amd64

Reproduction Steps

• Build V from sources on Linux/amd64 and OpenBSD/amd64
• Run self-tests with clang + prod mode : VTEST_JUST_ESSENTIAL=1 ./v -prod -cc clang test-self

Expected Behavior

No error for self-test with Clang + prod mode

Current Behavior

• NOK: Errors with Clang with prod on Linux/amd64

$ clang --version
Debian clang version 16.0.6 (27+b1)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin

$ VTEST_JUST_ESSENTIAL=1 ./v -prod -cc clang test-self
(...)
Failed command 1:    '/home/fox/dev/vlang.git/v' -skip-running -prod -cc clang  -o '/tmp/v_1000/tsession_7f0bb2120740_01J80HK1QSW5BEPH821NJWPWWP/64_6/program_test' '/home/fox/dev/vlang.git/vlib/v/gen/js/program_test.v'
Failed command 2:    '/home/fox/dev/vlang.git/v' -skip-running -prod -cc clang  -o '/tmp/v_1000/tsession_7f0bb2120740_01J80HK1QSW5BEPH821NJWPWWP/60_1/interpret_test' '/home/fox/dev/vlang.git/vlib/v/eval/interpret_test.v'
Failed command 3:    '/home/fox/dev/vlang.git/v' -skip-running -prod -cc clang  -o '/tmp/v_1000/tsession_7f0bb2120740_01J80HK1QSW5BEPH821NJWPWWP/58_2/compiler_errors_test' '/home/fox/dev/vlang.git/vlib/v/compiler_errors_test.v'
Failed command 4:    '/home/fox/dev/vlang.git/v' -skip-running -prod -cc clang  -o '/tmp/v_1000/tsession_7f0bb2120740_01J80HK1QSW5BEPH821NJWPWWP/68_2/compiler_test' '/home/fox/dev/vlang.git/vlib/v/slow_tests/inout/compiler_test.v'
Summary for testing: cmd, vlib: 4 failed, 66 passed, 70 total. Elapsed time: 323615 ms, on 7 parallel jobs.

WARNING: failed 4 times.

• OK: No error with Clang without prod on Linux/amd64

$ $ VTEST_JUST_ESSENTIAL=1 ./v -cc clang test-self
(...)
Summary for testing: cmd, vlib: 70 passed, 70 total. Elapsed time: 116879 ms, on 7 parallel jobs.

• NOK: Errors with Clang with prod on OpenBSD/amd64

$ VTEST_JUST_ESSENTIAL=1 ./v -prod -cc clang test-self
(...)
Failed command 1:    '/home/fox/dev/vlang.git/v' -skip-running -prod -cc clang  -o '/tmp/v_1000/tsession_2e14c3698_01J80J01Q168Y07VYSZ88B4NJZ/33_0/server_test' '/home/fox/dev/vlang.git/vlib/net/http/server_test.v'
Failed command 2:    '/home/fox/dev/vlang.git/v' -skip-running -prod -cc clang  -o '/tmp/v_1000/tsession_2e14c3698_01J80J01Q168Y07VYSZ88B4NJZ/58_0/compiler_errors_test' '/home/fox/dev/vlang.git/vlib/v/compiler_errors_test.v'
Failed command 3:    '/home/fox/dev/vlang.git/v' -skip-running -prod -cc clang  -o '/tmp/v_1000/tsession_2e14c3698_01J80J01Q168Y07VYSZ88B4NJZ/63_0/coutput_test' '/home/fox/dev/vlang.git/vlib/v/gen/c/coutput_test.v'
Failed command 4:    '/home/fox/dev/vlang.git/v' -skip-running -prod -cc clang  -o '/tmp/v_1000/tsession_2e14c3698_01J80J01Q168Y07VYSZ88B4NJZ/64_0/program_test' '/home/fox/dev/vlang.git/vlib/v/gen/js/program_test.v'
Failed command 5:    '/home/fox/dev/vlang.git/v' -skip-running -prod -cc clang  -o '/tmp/v_1000/tsession_2e14c3698_01J80J01Q168Y07VYSZ88B4NJZ/68_0/compiler_test' '/home/fox/dev/vlang.git/vlib/v/slow_tests/inout/compiler_test.v'
Summary for testing: cmd, vlib: 5 failed, 65 passed, 70 total. Elapsed time: 1719536 ms, on 1 job.

WARNING: failed 5 times.

=> same errors than on Linux/amd64 (+ test failed for vlib/net/http/server_test.v already known on OpenBSD/amd64, see issue #22126)

• NOK: Errors with Clang without prod on OpenBSD/amd64

$ VTEST_JUST_ESSENTIAL=1 ./v  -cc clang test-self
(...)
Failed command 1:    '/home/fox/dev/vlang.git/v' -skip-running -cc clang  -o '/tmp/v_1000/tsession_2dfced698_01J822TVBN15BJ9CF6RDRPPHZ4/33_0/server_test' '/home/fox/dev/vlang.git/vlib/net/http/server_test.v'
Failed command 2:    '/home/fox/dev/vlang.git/v' -skip-running -cc clang  -o '/tmp/v_1000/tsession_2dfced698_01J822TVBN15BJ9CF6RDRPPHZ4/58_0/compiler_errors_test' '/home/fox/dev/vlang.git/vlib/v/compiler_errors_test.v'
Failed command 3:    '/home/fox/dev/vlang.git/v' -skip-running -cc clang  -o '/tmp/v_1000/tsession_2dfced698_01J822TVBN15BJ9CF6RDRPPHZ4/63_0/coutput_test' '/home/fox/dev/vlang.git/vlib/v/gen/c/coutput_test.v'
Summary for testing: cmd, vlib: 3 failed, 67 passed, 70 total. Elapsed time: 1257632 ms, on 1 job.

WARNING: failed 3 times.

=> 2 errors for vlib/v/compiler_errors_test.v and vlib/v/gen/c/coutput_test.v (+ test failed for vlib/net/http/server_test.v already known on OpenBSD/amd64, see issue #22126)

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.7 c0f7244

Environment details (OS name and version, etc.)

V full version: V 0.4.7 c0f7244
OS: linux, Debian GNU/Linux trixie/sid
Processor: 8 cpus, 64bit, little endian, Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz

getwd: /home/fox/dev/vlang.git
vexe: /home/fox/dev/vlang.git/v
vexe mtime: 2024-09-18 07:58:16

vroot: OK, value: /home/fox/dev/vlang.git
VMODULES: OK, value: /home/fox/.vmodules
VTMP: OK, value: /tmp/v_1000

Git version: git version 2.45.2
Git vroot status: weekly.2024.37-17-gc0f72446
.git/config present: true

CC version: cc (Debian 14.2.0-3) 14.2.0
thirdparty/tcc status: thirdparty-linux-amd64 0134e9b9

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