[llvm] [AArch64][PAC] Protect the entire function if pac-ret+leaf is passed (PR #140895)

[Daniel Kiss via llvm-commits]

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@@ -74,19 +74,19 @@ define hidden noundef i32 @baz_async(i32 noundef %a) #0 uwtable(async) {
 ; CHECK-V8A-NEXT:    bl _Z3bari
 ; CHECK-V8A-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
 ; CHECK-V8A-NEXT:    .cfi_def_cfa_offset 0
+; CHECK-V8A-NEXT:    .cfi_restore w30
 ; CHECK-V8A-NEXT:    hint #29
 ; CHECK-V8A-NEXT:    .cfi_negate_ra_state
-; CHECK-V8A-NEXT:    .cfi_restore w30
 ; CHECK-V8A-NEXT:    b _Z3bari
 ; CHECK-V8A-NEXT:  .LBB1_2: // %if.else
 ; CHECK-V8A-NEXT:    .cfi_restore_state
 ; CHECK-V8A-NEXT:    bl _Z4quuxi
 ; CHECK-V8A-NEXT:    add w0, w0, #1
 ; CHECK-V8A-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
 ; CHECK-V8A-NEXT:    .cfi_def_cfa_offset 0
+; CHECK-V8A-NEXT:    .cfi_restore w30
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DanielKristofKiss wrote:

here the w30 actually not yet restores as still signed.

https://github.com/llvm/llvm-project/pull/140895