[llvm-bugs] [Bug 47331] New: Request merge of three AArch64 SVE fixes onto the LLVM 11 release branch.

via llvm-bugs llvm-bugs at lists.llvm.org
Thu Aug 27 08:28:37 PDT 2020


https://bugs.llvm.org/show_bug.cgi?id=47331

            Bug ID: 47331
           Summary: Request merge of three AArch64 SVE fixes onto the LLVM
                    11 release branch.
           Product: libraries
           Version: 11.0
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: AArch64
          Assignee: unassignedbugs at nondot.org
          Reporter: sander.desmalen at arm.com
                CC: arnaud.degrandmaison at arm.com,
                    llvm-bugs at lists.llvm.org, smithp352 at googlemail.com,
                    Ties.Stuij at arm.com

Hello, would it be possible to have these three patches cherry-picked onto the
LLVM 11 release branch?

The first two patches (one NFC and the other a fix), fixes an issue when
building with -mattr=+sve and -g, which otherwise causes a compiler crash, but
with these patches generates debug info for target-specific SVE vector types.
This should be low/no risk for non-SVE targets, as it is entirely specific to
the AArch64 SVE ACLE implementation:

4e9b66de3f046c1e97b34c938b0920fa6401f40c Sander de Smalen [AArch64][SVE] Add
missing debug info for ACLE types.
0353848cc94f0fc23a953f8f420be7ee3342c8dc Sander de Smalen [Clang][SVE] NFC:
Move info about ACLE types into separate function.


The other patch fixes a minor codegen issue for AArch64 SVE:
5f47d4456d192eaea8c56a2b4648023c8743c927 Sander de Smalen [AArch64][SVE] Fix
calculation restore point for SVE callee saves.

The patches apply without conflict, and can be cherry-picked with:
git cherry-pick 0353848cc94f0fc23a953f8f420be7ee3342c8dc
5f47d4456d192eaea8c56a2b4648023c8743c927
4e9b66de3f046c1e97b34c938b0920fa6401f40c

Please let me know if you have any questions or concerns.

Thanks,

Sander

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