[llvm-bugs] [Bug 34765] New: [mc][gfx9]
llvm-bugs at lists.llvm.org
Thu Sep 28 08:01:49 PDT 2017
Bug ID: 34765
Component: Backend: AMDGPU
Assignee: unassignedbugs at nondot.org
Reporter: artem.tamazov at amd.com
CC: andrey.kasaurov at gmail.com, artem.tamazov at amd.com,
llvm-bugs at lists.llvm.org, nikolay.haustov at amd.com,
sam.kolton at amd.com, valery.pykhtin at gmail.com
Gfx8 -> Gfx9:
Existing Gfx8 VALU instructions (ADD, ADDC, SUB, SUBREV, SUBB, SUBBREV) have
different mnemonics. The "_CO_" suffix added in order to explicitly express the
New VALU instructions added: ADD, SUB, SUBREV. These do not read and write
Quiet change: Gfx8 sources which have ADD, SUB, SUBREV shall be updated for
Gfx9. Either second output operand shall be removed, or mnemonic shall be
changed to the one with "_CO_" suffix.
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