https://bugs.llvm.org/show_bug.cgi?id=44909
Bug ID: 44909
Summary: [AMDGPU][MC][GFX908] v_accvgpr_write does not accept
SGPRs as src0
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: AMDGPU
Assignee: unassignedb...@nondot.org
Reporter: dpreobrazhen...@luxoft.com
CC: llvm-bugs@lists.llvm.org
v_accvgpr_write should accept any valid GFX9 operand as src0 (except for
literals). This is confirmed by Justin Smith (though lds_direct case is not
clear yet).
LLVM assembler currently limits src0 operands with VGPRs and inline constants.
Examples of failed tests:
v_accvgpr_write a2, s1
v_accvgpr_write a2, flat_scratch_lo
v_accvgpr_write a2, exec_lo
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