Hi, it looks it has been fixed on mod (tested on Fedora x64). Official tcc versions are quite old and the is no sign that a new official version will soon come out.
If you do serious work with tcc I strongly suggest you use mod. From: Tinycc-devel [mailto:tinycc-devel-bounces+eligis=orange...@nongnu.org] On Behalf Of ??? Sent: Monday, March 07, 2022 03:14 To: tinycc-devel Subject: [Tinycc-devel] tcc assertion fail at x86_64-gen.c:441 Reproducer: $ cat new.c # can be found in attachment void abort(void); int ii; typedef struct { } raw_spinlock_t; typedef struct { raw_spinlock_t raw_lock; } spinlock_t; raw_spinlock_t one_raw_spinlock(void) { raw_spinlock_t raw_lock; ii++; return raw_lock; } int main(void) { spinlock_t lock = (spinlock_t){.raw_lock = one_raw_spinlock()}; int ctf0_idx; ctf0_idx = (int)0x00000000; int ctf0_constval; ctf0_constval = (int)0x00000000; int *ctf0_arr[] = {&ctf0_constval}; int ctf1_idx; ctf1_idx = (int)0x00000000; int ctf1_constval; ctf1_constval = (int)0x00000000; int *ctf1_arr[] = {&ctf1_constval}; if (((*ctf0_arr[ctf0_idx]) | (*ctf1_arr[ctf1_idx])) != 1) abort(); return 0; } $ tcc -O0 new.c tcc: x86_64-gen.c:441: load: Assertion `((ft & VT_BTYPE) == VT_INT) || ((ft & VT_BTYPE) == VT_LLONG) || ((ft & VT_BTYPE) == VT_PTR) || ((ft & VT_BTYPE) == VT_FUNC)' failed. [1] 115530 abort (core dumped) tcc -O0 new.c my tcc version is (ubuntu 18.04) $ tcc -v tcc version 0.9.27 (x86_64 Linux)
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