[llvm] 9936455 - Reapply D70800: Fix AArch64 AAPCS frame record chain

[Owen Anderson via llvm-commits]

> On Aug 27, 2020, at 12:02 AM, Owen Anderson <resistor at mac.com> wrote:
> 
>> 
>> On Aug 26, 2020, at 11:43 PM, Martin Storsjö <martin at martin.st> wrote:
>> 
>> On Wed, 26 Aug 2020, Owen Anderson via llvm-commits wrote:
>> 
>>> 
>>> Author: Owen Anderson
>>> Date: 2020-08-26T19:38:38Z
>>> New Revision: 9936455204fd6ab72715cc9d67385ddc93e072ed
>>> 
>>> URL: https://github.com/llvm/llvm-project/commit/9936455204fd6ab72715cc9d67385ddc93e072ed
>>> DIFF: https://github.com/llvm/llvm-project/commit/9936455204fd6ab72715cc9d67385ddc93e072ed.diff
>>> 
>>> LOG: Reapply D70800: Fix AArch64 AAPCS frame record chain
>> 
>> This commit caused failed assertions, so I went ahead and reverted it - see the revert commit message for a reduced reproduction case.
> 
> Thank you for the test case, I’ll track down the issue.

After debugging this test case, it looks like the assertion in question is simply erroneous.  A non-multiple-of-16 stack adjustment *is* required in this test case.

Can you try disabling that assertion and seeing if whatever code you extracted this test from now works?

Thanks,

—Owen

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