Squashed 'external/capstone/' content from commit e46f64fa

git-subtree-dir: external/capstone
git-subtree-split: e46f64fadb351e9ecd05264fab26f2772feb0994

tests/unit/riscv_op_count_iter.c

@@ -0,0 +1,50 @@
+#include "unit_test.h"
+#include <capstone/capstone.h>
+#include <stdio.h>
+#include <inttypes.h>
+
+// c.addi sp, -16 (2 ops) -> addi a0, a1, 1 (3 ops) -> c.addi sp, -16 (2 ops)
+// Without RISCV_init_cs_detail(), op_count accumulates: 2, 5, 7
+static bool test_riscv_op_count_no_stale()
+{
+	printf("Test test_riscv_op_count_no_stale\n");
+	static const uint8_t code[] = {
+		0x41, 0x11, // c.addi sp, -16
+		0x13, 0x85, 0x15, 0x00, // addi a0, a1, 1
+		0x41, 0x11, // c.addi sp, -16
+	};
+	static const int32_t expected_op_counts[] = { 2, 3, 2 };
+
+	csh handle;
+	if (cs_open(CS_ARCH_RISCV, CS_MODE_RISCV64 | CS_MODE_RISCV_C,
+		    &handle) != CS_ERR_OK) {
+		return false;
+	}
+	cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON | CS_OPT_DETAIL_REAL);
+	cs_option(handle, CS_OPT_SYNTAX,
+		  CS_OPT_SYNTAX_NO_ALIAS_TEXT |
+			  CS_OPT_SYNTAX_NO_ALIAS_TEXT_COMPRESSED);
+	cs_insn *insn = cs_malloc(handle);
+
+	const uint8_t *start = code;
+	size_t size = sizeof(code);
+	uint64_t address = 0;
+	size_t i = 0;
+
+	while (cs_disasm_iter(handle, &start, &size, &address, insn)) {
+		CHECK_INT_EQUAL_RET_FALSE((size_t)insn->detail->riscv.op_count,
+					  expected_op_counts[i]);
+		++i;
+	}
+
+	cs_free(insn, 1);
+	cs_close(&handle);
+	return true;
+}
+
+int main(void)
+{
+	bool ret = true;
+	ret &= test_riscv_op_count_no_stale();
+	return ret ? 0 : -1;
+}