These two instructions are supported by gfx1250. We define the instructions and implement the corresponding intrinsic and builtin. Co-authored-by: Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com>
The legalize t16 operand function could insert a reg_sequence which modify the user list of the targetted register, and we should not call it in the middle of an user list iteration
https://github.com/llvm/llvm-project/pull/141152 causes an issue in v_s_xxx_f16 lowering in both true16/fake16 flow. V_S_XXX_F16 are special insts which has scalar input/output but in VALU VOP3 format. Need to keep the srcmod/clamp/omod when lower it to its corresponding VALU inst with vector input/output.
Add op_sel for v_s_xxx_f16 when move them to VALU update a few related codegen test for gfx12 in true16 mode
S_ADD_U64_PSEUDO and S_SUB_U64_PSEUDO are not "special cases" so can be handled in getVALUOp instead of moveToVALUImpl.
Two changes in this patch: 1. Covered another case in legalizeOperandVALUt16 functions and the COPY lowering, when SALU16 is used by SALU32, need to insert a reg_sequence after moved to valu (previously only considered SALU32 used by SALU16 case) 2. Moved the useMI analysis into addUsersToMoveVALUList. Legalize the targetted operand when needed. Turn on frem test with true16 mode for gfx1150 which is failing before this patch. A few bitcast tests also impacted by this change with some v_mov being replaced to dual mov
This was pre-filtering out a specific situation from being added to the fold candidate list. The operand legality will ultimately be checked with isOperandLegal before the fold is performed, so I don't see the plus in pre-filtering this one case.
This annotates the `Twine` passed to the constructors of the various DiagnosticInfo subclasses with `[[clang::lifetimebound]]`, which causes us to warn when we would try to print the twine after it had already been destructed. We also update `DiagnosticInfoUnsupported` to hold a `const Twine &` like all of the other DiagnosticInfo classes, since this warning allows us to clean up all of the places where it was being used incorrectly.