[llvm-bugs] [Bug 71158] [AArch64_32][bug] -O1 will let the 32bit register to 64bit register of Pointer

[LLVM Bugs via llvm-bugs]

Issue	71158
Summary	[AArch64_32][bug] -O1 will let the 32bit register to 64bit register of Pointer
Labels	new issue
Assignees
Reporter	ls-Mou

    demo:
```
typedef struct {
  int a;
  int b;
} context_t;
static inline void InitSysContextFields(context_t * tmp) {
   tmp->a = 1;
   tmp->b = 0;
}
int CommonPreparePrologue(context_t * tmp) {
  if (!tmp) return 0;
  InitSysContextFields(tmp);
  return (tmp->a + tmp->b);
}
```
-O0 CommonPreparePrologue through w register to pass attribute
![image](https://github.com/llvm/llvm-project/assets/149390011/ad40105b-c56d-43a7-948b-3b0213371a7f)

-O1 CommonPreparePrologue through x register to pass attribute
![image](https://github.com/llvm/llvm-project/assets/149390011/fe3cd661-ce16-4688-8ec4-42e395f66e49)
https://godbolt.org/z/fn5EjWxE6

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