[llvm-bugs] [Bug 36282] New: Merge r324353 into the 6.0 branch

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=36282

            Bug ID: 36282
           Summary: Merge r324353 into the 6.0 branch
           Product: libraries
           Version: 6.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: Backend: AMDGPU
          Assignee: unassignedbugs at nondot.org
          Reporter: bas at basnieuwenhuizen.nl
                CC: llvm-bugs at lists.llvm.org
            Blocks: 35804

r324353 fixes a GPU hang due to to a pseudo instruction generated with a new
pattern not having SGPR->VGPR promotion support.

"AMDGPU: Fix S_BUFFER_LOAD_DWORD_SGPR moveToVALU.

It moves the offset to vgpr, but did not handle being called for
any of the other arguments, while LLVM 5 would select
BUFFER_LOAD_DWORD_OFFEN immediately, which does the right thing.

This calls legalizeOperands to fix up the operands after we converted
to a BUFFER_LOAD_DWORD_OFFEN."


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=35804
[Bug 35804] [meta] 6.0.0 Release Blockers
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