[llvm-bugs] [Bug 33302] New: Unreal Elemental regression since [AMDGPU] Untangle SDWA pass from SIShrinkInstructions

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33302

            Bug ID: 33302
           Summary: Unreal Elemental regression since [AMDGPU] Untangle
                    SDWA pass from SIShrinkInstructions
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: AMDGPU
          Assignee: unassignedbugs at nondot.org
          Reporter: adf.lists at gmail.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 18572
  --> https://bugs.llvm.org/attachment.cgi?id=18572&action=edit
R600_DEBUG=vs,ps,fs xz

R9 285 Tonga since [AMDGPU] Untangle SDWA pass from SIShrinkInstructions
with unreal Elemental demo I get 

ElementalDemo: /mnt/sdb1/Gits/llvm/include/llvm/CodeGen/MachineOperand.h:283:
unsigned int llvm::MachineOperand::getSubReg() const: Assertion `isReg() &&
"Wrong MachineOperand accessor"' failed.

debug attached.

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