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workflows/build.yml: - win32/64: install mingw32/64 gcc on msys (because the default gcc installed elsewhere seems to use ucrt, producing incompatible fp printf formats.) tccgen.c: - cleanup funcs: save any lvalues from return expressions. Also use get_temp_local_var() which however was causing a problem on i386 because its gfunc_call() removes the arguments from vstack and by that defeats the 'in-use' tracking of get_temp_local_var(). Fixed by: i386/arm/arm64/x86_64-gen.c: - in gfunc_call(): save_regs before anything else, fixes problems seen in arm64/i386 tccpp.c: - allow arm asm specific use of '#' in macros libtcc.c: - organize -M options, and: tccpe.c: - move the subsystem option parsing from libtcc.c tccelf.c: - improved error handling in tcc_load_ldscript() lib/atomic.S: - TCC_TARGET_... not defined when building the lib - endbrNN security feature not supported by TCC tests/tests2/136_atomic_gcc_style.c: - never use standard assert() in tests
79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
#include <stdatomic.h>
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#include <stdbool.h>
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#include <stdio.h>
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// standard assert would popup a dialog box on windows
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#define assert(x) \
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printf("assert \"%s\" : %s\n", #x, (x) ? "yes" : "no");
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int main() {
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// Test 1: Basic functionality of __atomic_store_n and __atomic_load_n
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{
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int atomic_var = 0;
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__atomic_store_n(&atomic_var, 42, __ATOMIC_SEQ_CST);
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int loaded = __atomic_load_n(&atomic_var, __ATOMIC_SEQ_CST);
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assert(loaded == 42);
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}
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// Test 2: Successful exchange with __atomic_compare_exchange_n
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{
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int atomic_var = 100;
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int expected = 100;
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bool success = __atomic_compare_exchange_n(
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&atomic_var, &expected, 200,
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false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST
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);
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assert(success);
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assert(atomic_var == 200);
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assert(expected == 100); // expected remains unchanged on success
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}
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// Test 3: Failed exchange with __atomic_compare_exchange_n (update expected)
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{
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int atomic_var = 100;
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int expected = 99;
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bool success = __atomic_compare_exchange_n(
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&atomic_var, &expected, 200,
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false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST
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);
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assert(!success);
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assert(atomic_var == 100);
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assert(expected == 100); // expected updated to current value on failure
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}
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// Test 4: Weak version (spurious failure handling)
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{
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int atomic_var = 50;
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int expected = 50;
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for (int i = 0; i < 10; i++) {
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if (__atomic_compare_exchange_n(
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&atomic_var, &expected, 60,
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true, __ATOMIC_RELAXED, __ATOMIC_RELAXED
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)) {
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break;
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}
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}
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assert(atomic_var == 60);
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}
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// Test 5: Pointer type operations
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{
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int value = 100;
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int* atomic_ptr = &value;
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int* new_ptr = NULL;
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__atomic_store_n(&atomic_ptr, new_ptr, __ATOMIC_RELEASE);
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int* loaded_ptr = __atomic_load_n(&atomic_ptr, __ATOMIC_ACQUIRE);
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assert(loaded_ptr == NULL);
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}
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// Test 6: Relaxed memory ordering
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{
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int atomic_var = 0;
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__atomic_store_n(&atomic_var, 10, __ATOMIC_RELAXED);
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assert(__atomic_load_n(&atomic_var, __ATOMIC_RELAXED) == 10);
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}
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printf("All atomic tests passed!\n");
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return 0;
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}
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