Bug 15751 – atomicLoad doesn't return stable result if compiled with -profile

atomicLoad() doesn't constantly return 0 in the following code if it's compiled with -profile option: ================================= import core.atomic; int main() { shared int s = 0; return atomicLoad(s); } ================================= Compiler: DMD32 D Compiler v2.070.2 Compile command: dmd test.d -oftest_p -profile Test command: pass=0; fail=0; for i in $(seq 1 100); do ./test_p.exe && pass=$((pass+1)) || fail=$((fail+1)); done; echo pass=$pass fail=$fail Test command output (example): pass=89 fail=11 Even adding "atomicStore(s, 0);" right before atomicLoad doesn't guarantee the result: pass=95 fail=5

Seems to be fixed in 2.089.0 Tried on run.dlang.org with: ``` import core.atomic; int main() { shared int s = 0; foreach (_; 0..10) { auto res = atomicLoad(s); if (res != 0) return 1; } return 0; } ``` came to this when trying profile something with dmd-2.088.1

I also cannot reproduce.