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tests: cover arm64 regvar and bitwise asm

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This commit is contained in:
Benjamin Oldenburg 2026-03-22 02:00:14 +07:00
parent e7a16ce876
commit 0414fdddbd
1 changed files with 30 additions and 4 deletions
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34
tests/asm/test-asm-arm64-ext.c
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@ -155,10 +155,19 @@ void test_multiple_io(void)
printf("Test 13 (multiple IO): PASSED\n");
}
/* Test 14: Register variable preservation - SKIPPED */
/* Test 14: Register variable preservation */
void test_regvar_preservation(void)
{
printf("Test 14 (regvar preservation): SKIPPED\n");
register uint64_t keep asm("x19") = 0x123456789abcdef0ULL;
uint64_t out;
asm volatile("mov x19, #7; add %0, x19, #1"
: "=r"(out)
:
: "x19");
assert(keep == 0x123456789abcdef0ULL);
assert(out == 8);
printf("Test 14 (regvar preservation): PASSED\n");
}
/* Test 15: Complex arithmetic */
@ -213,10 +222,27 @@ void test_large_immediate(void)
printf("Test 19 (large immediate): PASSED\n");
}
/* Test 20: Bitwise operations - SKIPPED (and imm not implemented) */
/* Test 20: Bitwise operations */
void test_bitwise_ops(void)
{
printf("Test 20 (bitwise ops): SKIPPED\n");
uint64_t a = 0xf0f0f0f00f0f0f0fULL;
uint64_t b = 0x3333ffff0000ccccULL;
uint64_t andv;
uint64_t orv;
uint64_t xorv;
uint64_t imm_and;
asm("and %0, %1, %2" : "=r"(andv) : "r"(a), "r"(b));
asm("orr %0, %1, %2" : "=r"(orv) : "r"(a), "r"(b));
asm("eor %0, %1, %2" : "=r"(xorv) : "r"(a), "r"(b));
asm("and %0, %1, %2" : "=r"(imm_and)
: "r"(~0ULL), "L"(0xff00ff00ff00ff00ULL));
assert(andv == (a & b));
assert(orv == (a | b));
assert(xorv == (a ^ b));
assert(imm_and == 0xff00ff00ff00ff00ULL);
printf("Test 20 (bitwise ops): PASSED\n");
}
/* Test 21: Register shift operands */