translate-c regression: segmentation fault

[GalaxyShard]

Zig Version

0.16.0-dev.747+493ad58ff

Steps to Reproduce and Observed Behavior

$ git clone https://codeberg.org/galaxyshard/zig-nds-bindings
$ cd zig-nds-bindings
$ git checkout 76f3852bdc12e63cf6a8c4d4ebdb472e4fc1c36cbec23b32e08ba3fac5961547
$ zig build

Output:

install
└─ compile obj test-nds7 Debug thumb-freestanding-eabi
   └─ translate-c failure
error: error: the following build command crashed:
/home/galaxyshard/.cache/zig/o/c2d0f94a0d1c02029fa2ecf6bf1c18ef/translate-c --zig-integration -x c -isystem /home/galaxyshard/.local/share/zigdown/zig-0.16.0-dev.747+493ad58ff/files/lib/compiler/aro/include -fno-PIE -fno-PIC -gdwarf-4 -gdwarf32 -fno-lto -MD -MV -MF .zig-cache/tmp/14e87db494021f77/libnds7.h.d -ffreestanding -nostdinc -isystem /home/galaxyshard/.local/share/zigdown/zig-0.16.0-dev.747+493ad58ff/files/lib/include -O0 -target thumb-freestanding-eabi -mcpu=baseline-32bit-8msecext-aapcs_frame_chain+aclass-acquire_release-aes-atomics_32-avoid_movs_shop-avoid_muls-avoid_partial_cpsr-bf16-big_endian_instructions-branch_align_64-cde-cdecp0-cdecp1-cdecp2-cdecp3-cdecp4-cdecp5-cdecp6-cdecp7-cheap_predicable_cpsr-clrbhb-cortex_a510-crc-crypto+d32+db-dfb-disable_postra_scheduler-dont_widen_vmovs-dotprod+dsp-execute_only-expand_fp_mlx-fix_cmse_cve_2021_35465-fix_cortex_a57_aes_1742098-fp16-fp16fml+fp64-fp_armv8-fp_armv8d16-fp_armv8d16sp-fp_armv8sp-fpao+fpregs-fpregs16+fpregs64-fullfp16-fuse_aes-fuse_literals-harden_sls_blr-harden_sls_nocomdat-harden_sls_retbr+has_v4t+has_v5t+has_v5te+has_v6+has_v6k+has_v6m+has_v6t2+has_v7+has_v7clrex-has_v8-has_v8_1a-has_v8_1m_main-has_v8_2a-has_v8_3a-has_v8_4a-has_v8_5a-has_v8_6a-has_v8_7a-has_v8_8a-has_v8_9a+has_v8m-has_v8m_main-has_v9_1a-has_v9_2a-has_v9_3a-has_v9_4a-has_v9_5a-has_v9_6a-has_v9a-hwdiv-hwdiv_arm-i8mm-iwmmxt-iwmmxt2-lob-long_calls-loop_align-m55-m85-mclass-mp-muxed_units-mve-mve1beat-mve2beat-mve4beat-mve_fp-nacl_trap+neon-neon_fpmovs-neonfp-no_branch_predictor-no_bti_at_return_twice-no_movt-no_neg_immediates-noarm-nonpipelined_vfp-pacbti+perfmon-prefer_ishst-prefer_vmovsr-prof_unpr-ras-rclass-read_tp_tpidrprw-read_tp_tpidruro-read_tp_tpidrurw-reserve_r9-ret_addr_stack-sb-sha2-slow_fp_brcc-slow_load_D_subreg-slow_odd_reg-slow_vdup32-slow_vgetlni32-slowfpvfmx-slowfpvmlx-soft_float-splat_vfp_neon-strict_align+thumb2+thumb_mode-trustzone-use_mipipeliner-use_misched-v2-v2a-v3-v3m-v4-v4t-v5t-v5te-v5tej-v6-v6j-v6k-v6kz-v6m-v6sm-v6t2+v7a-v7em-v7m-v7r-v7ve-v8_1a-v8_1m_main-v8_2a-v8_3a-v8_4a-v8_5a-v8_6a-v8_7a-v8_8a-v8_9a-v8a-v8m-v8m_main-v8r-v9_1a-v9_2a-v9_3a-v9_4a-v9_5a-v9_6a-v9a-vfp2+vfp2sp+vfp3+vfp3d16+vfp3d16sp+vfp3sp-vfp4-vfp4d16-vfp4d16sp-vfp4sp-virtualization-vldn_align-vmlx_forwarding-vmlx_hazards-wide_stride_vfp-xscale-zcz -I /home/galaxyshard/test/zig-nds-bindings/stub -I /home/galaxyshard/test/zig-nds-bindings/stub/include -I /home/galaxyshard/.cache/zig/p/N-V-__8AAHdbGgB5aYull6G4E-Nhn1uOYLKwVqfHfJ0SZYYg/include -isystem .zig-cache/o/90bd073a89a1dc7babff4c205d13d587 -D ARM7= -D wint_t=char /home/galaxyshard/test/zig-nds-bindings/src/libnds7.h -o .zig-cache/tmp/14e87db494021f77/libnds7.zig

error: the following command exited with error code 1:
/home/galaxyshard/.local/share/zigdown/zig-0.16.0-dev.747+493ad58ff/files/zig translate-c -lc --cache-dir .zig-cache --global-cache-dir /home/galaxyshard/.cache/zig --listen=- -target thumb-freestanding-eabi -I /home/galaxyshard/test/zig-nds-bindings/stub -I /home/galaxyshard/test/zig-nds-bindings/stub/include -I /home/galaxyshard/.cache/zig/p/N-V-__8AAHdbGgB5aYull6G4E-Nhn1uOYLKwVqfHfJ0SZYYg/include -isystem .zig-cache/o/90bd073a89a1dc7babff4c205d13d587 -D ARM7= -D wint_t=char /home/galaxyshard/test/zig-nds-bindings/src/libnds7.h
install
└─ compile obj test-nds9 Debug thumb-freestanding-eabi
   └─ translate-c failure
error: error: the following build command crashed:
/home/galaxyshard/.cache/zig/o/c2d0f94a0d1c02029fa2ecf6bf1c18ef/translate-c --zig-integration -x c -isystem /home/galaxyshard/.local/share/zigdown/zig-0.16.0-dev.747+493ad58ff/files/lib/compiler/aro/include -fno-PIE -fno-PIC -gdwarf-4 -gdwarf32 -fno-lto -MD -MV -MF .zig-cache/tmp/300f44c8a66fc435/libnds9.h.d -ffreestanding -nostdinc -isystem /home/galaxyshard/.local/share/zigdown/zig-0.16.0-dev.747+493ad58ff/files/lib/include -O0 -target thumb-freestanding-eabi -mcpu=baseline-32bit-8msecext-aapcs_frame_chain+aclass-acquire_release-aes-atomics_32-avoid_movs_shop-avoid_muls-avoid_partial_cpsr-bf16-big_endian_instructions-branch_align_64-cde-cdecp0-cdecp1-cdecp2-cdecp3-cdecp4-cdecp5-cdecp6-cdecp7-cheap_predicable_cpsr-clrbhb-cortex_a510-crc-crypto+d32+db-dfb-disable_postra_scheduler-dont_widen_vmovs-dotprod+dsp-execute_only-expand_fp_mlx-fix_cmse_cve_2021_35465-fix_cortex_a57_aes_1742098-fp16-fp16fml+fp64-fp_armv8-fp_armv8d16-fp_armv8d16sp-fp_armv8sp-fpao+fpregs-fpregs16+fpregs64-fullfp16-fuse_aes-fuse_literals-harden_sls_blr-harden_sls_nocomdat-harden_sls_retbr+has_v4t+has_v5t+has_v5te+has_v6+has_v6k+has_v6m+has_v6t2+has_v7+has_v7clrex-has_v8-has_v8_1a-has_v8_1m_main-has_v8_2a-has_v8_3a-has_v8_4a-has_v8_5a-has_v8_6a-has_v8_7a-has_v8_8a-has_v8_9a+has_v8m-has_v8m_main-has_v9_1a-has_v9_2a-has_v9_3a-has_v9_4a-has_v9_5a-has_v9_6a-has_v9a-hwdiv-hwdiv_arm-i8mm-iwmmxt-iwmmxt2-lob-long_calls-loop_align-m55-m85-mclass-mp-muxed_units-mve-mve1beat-mve2beat-mve4beat-mve_fp-nacl_trap+neon-neon_fpmovs-neonfp-no_branch_predictor-no_bti_at_return_twice-no_movt-no_neg_immediates-noarm-nonpipelined_vfp-pacbti+perfmon-prefer_ishst-prefer_vmovsr-prof_unpr-ras-rclass-read_tp_tpidrprw-read_tp_tpidruro-read_tp_tpidrurw-reserve_r9-ret_addr_stack-sb-sha2-slow_fp_brcc-slow_load_D_subreg-slow_odd_reg-slow_vdup32-slow_vgetlni32-slowfpvfmx-slowfpvmlx-soft_float-splat_vfp_neon-strict_align+thumb2+thumb_mode-trustzone-use_mipipeliner-use_misched-v2-v2a-v3-v3m-v4-v4t-v5t-v5te-v5tej-v6-v6j-v6k-v6kz-v6m-v6sm-v6t2+v7a-v7em-v7m-v7r-v7ve-v8_1a-v8_1m_main-v8_2a-v8_3a-v8_4a-v8_5a-v8_6a-v8_7a-v8_8a-v8_9a-v8a-v8m-v8m_main-v8r-v9_1a-v9_2a-v9_3a-v9_4a-v9_5a-v9_6a-v9a-vfp2+vfp2sp+vfp3+vfp3d16+vfp3d16sp+vfp3sp-vfp4-vfp4d16-vfp4d16sp-vfp4sp-virtualization-vldn_align-vmlx_forwarding-vmlx_hazards-wide_stride_vfp-xscale-zcz -I /home/galaxyshard/test/zig-nds-bindings/stub -I /home/galaxyshard/test/zig-nds-bindings/stub/include -I /home/galaxyshard/.cache/zig/p/N-V-__8AAHdbGgB5aYull6G4E-Nhn1uOYLKwVqfHfJ0SZYYg/include -isystem .zig-cache/o/90bd073a89a1dc7babff4c205d13d587 -D ARM9= -D wint_t=char /home/galaxyshard/test/zig-nds-bindings/src/libnds9.h -o .zig-cache/tmp/300f44c8a66fc435/libnds9.zig

error: the following command exited with error code 1:
/home/galaxyshard/.local/share/zigdown/zig-0.16.0-dev.747+493ad58ff/files/zig translate-c -lc --cache-dir .zig-cache --global-cache-dir /home/galaxyshard/.cache/zig --listen=- -target thumb-freestanding-eabi -I /home/galaxyshard/test/zig-nds-bindings/stub -I /home/galaxyshard/test/zig-nds-bindings/stub/include -I /home/galaxyshard/.cache/zig/p/N-V-__8AAHdbGgB5aYull6G4E-Nhn1uOYLKwVqfHfJ0SZYYg/include -isystem .zig-cache/o/90bd073a89a1dc7babff4c205d13d587 -D ARM9= -D wint_t=char /home/galaxyshard/test/zig-nds-bindings/src/libnds9.h

Build Summary: 10/17 steps succeeded; 2 failed
install transitive failure
├─ install generated to libnds9.zig transitive failure
│  └─ translate-c failure
├─ install generated to libnds7.zig transitive failure
│  └─ translate-c failure
├─ compile obj test-nds9 Debug thumb-freestanding-eabi transitive failure
│  └─ translate-c (+1 more reused dependencies)
└─ compile obj test-nds7 Debug thumb-freestanding-eabi transitive failure
   └─ translate-c (+1 more reused dependencies)

error: the following build command failed with exit code 1:
.zig-cache/o/49ba818a056cc3509e07c0c60dbdaada/build /home/galaxyshard/.local/share/zigdown/zig-0.16.0-dev.747+493ad58ff/files/zig /home/galaxyshard/.local/share/zigdown/zig-0.16.0-dev.747+493ad58ff/files/lib /home/galaxyshard/test/zig-nds-bindings .zig-cache /home/galaxyshard/.cache/zig --seed 0xd0a3bb05 -Z0f81cf534b091471

I haven't reduced the issue yet, I'm trying to find the particular file that may be triggering the crash.

Expected Behavior

No crash nor SIGSEGV

[Vexu]

Reduction:

struct Foo {
    int a: 1;
    struct {
        int b;
    };
};
_Static_assert(__builtin_offsetof(struct Foo, b) == 4, "");