<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/60528>60528</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            failure to parse asm emitted by AArch64 + global isel
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            backend:AArch64,
            llvm:asmparser,
            globalisel
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          regehr
      </td>
    </tr>
</table>

<pre>
    this looks like probably a different issue than https://github.com/llvm/llvm-project/issues/60369, but I'm not certain about that

this function: 
```llvm
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"

define i64 @f(i64 %0) {
  %2 = mul i64 %0, %0
  %3 = sub i64 %2, -2105098
  ret i64 %3
}
```

compiled to AArch64 with global isel gives:
```
        .section        __TEXT,__text,regular,pure_instructions
        .build_version macos, 13, 0
        .globl  _f                              ; -- Begin function f
        .p2align        2
_f:                                     ; @f
        .cfi_startproc
; %bb.0:
        add     x8, xzr, #513, lsl #12 ; =2101248
        add     x8, x8, #3850
        madd    x0, x0, x0, x8
        ret
        .cfi_endproc
                                        ; -- End function
.subsections_via_symbols
```

but then this doesn't parse back:
```
Johns-MacBook-Pro:tmp regehr$ llvm-mc r2.s
        .section        __TEXT,__text,regular,pure_instructions
r2.s:2:2: warning: .build_version macos used while targeting darwin22.3.0
 .build_version macos, 13, 0
        ^
        .build_version macos, 13, 0
        .globl  _f
        .p2align        2
_f:
        .cfi_startproc
r2.s:8:15: error: invalid operand for instruction
        add     x8, xzr, #513, lsl #12          ; =2101248
                         ^
        add     x8, x8, #3850
        madd    x0, x0, x0, x8
        ret
        .cfi_endproc
.subsections_via_symbols
Johns-MacBook-Pro:tmp regehr$ 
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJy8VkGPozgT_TXOpZQIykDgkANJpqXvk1Zaaeewt8jggnjb2JFtuqf3169s0p30aKZnpFltFAzYz1Xl8nsuhPdqNEQ7Vu5ZeVyJOZyt2zka6exWnZUvu3BWHrS1jx60eiS4ONuJTr-AAKmGgRyZAMr7mSCchYFzCBfPeMvwgeHDqMJ57ja9nRg-aP30eltfnP2L-sDwIc31DB-qjFcNwwN0c4D_MdxOYGyAnlwQyoDo7Byij8CyI8vapU3hDbPpg7KG8Raug1W2_JPPBSncSAGkCEKLl2iL8SMwRFpPjLe0VjXjbbw4rlVeMd6mJr5VBeNtVaxVjhGQY702HJe-P2If4n1QkgZlCFRVACuygWGdHrHMGDbAtvsFBrELUxjTrOGGOSz3G4gnkJ-7VxBG0BrzrMya-hXoKLyO82s42-NX-bgPs7fTRWmSECy0revPVQHPKpxh1LYTGpQnDaN6orSf37bTbDwtuc-a0-nzpz8_MzycToG-BIYHR-OshWN4uMyOTsr44OYE9zcD3ay0PD2R88oamERvfVxdzmN75yhGpaObAT78Mb6H9Rr2NCrzRg0YboYuKLQaY8TXXTsNkTk_84u205a-GesHdfJBuHBxtr92RxCWXbfJbonLGiEly5ovdVzWl7_dss28XNapvY5vOS4u-BHzLMei_vbs-jqZ1-UtQdMVkgj0rr1ZcRTeh05G3gL_qRTcMvzJyJv0koGNn7srH_zpSYmTf5k6q_0HJOySqMlAUrK05A3DbYCLcJ6gE_3j98j3f3s2fv2b6PfWPq5_d5bxNkwXWE4vhgWkk2bqweHG_0uETaZ4i9cLnoUzyozx8VtEhtmThOez0gTLAaTMCFK4Z2UQN3zzqvKfUsFb_stPvyKfHynhQ3JfE5COwTIum5yzLj4o8yS0kmAv5ESkhnVwl8D3SxBSpvsP5fBeel_p4vsMvcvQf6Gcj4n_Y6Z-RfCV3HHZ8EasaJdX27LEJsvy1XlHRV4MGW3lwKuamgIHKatuwGGb50Nd00rtMEOeYVbkVcEx31BDddkLRFFVW0kVKzKahNKbKI6NdeMqFeBdlZVYr7ToSPv0OYAYxUdGMt5eq0Msc3hgiKmq8lb4KcnUvQ0slSMWjthVHldul0TYzaNnRaaVD_7mOaigaTcIpWdHsQotohd-AppUCCShe3krTQz395VpNTu9-5WvjRLrfwIAAP__-_OFvQ">