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[AMDGPU] Remove unused True16 patterns. #163784

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merged 1 commit into from
Oct 20, 2025
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[AMDGPU] Remove unused True16 patterns. #163784

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24 changes: 0 additions & 24 deletions llvm/lib/Target/AMDGPU/SIInstructions.td
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Original file line number Diff line number Diff line change
Expand Up @@ -3481,30 +3481,6 @@ def : GCNPat<
>;
} // End True16Predicate

let True16Predicate = UseRealTrue16Insts in {
def : GCNPat<
(fcanonicalize (f16 (VOP3Mods f16:$src, i32:$src_mods))),
(V_MUL_F16_t16_e64 0, (i16 CONST.FP16_ONE), $src_mods, $src, 0/*Clamp*/, /*omod*/0, /*opsel*/0)
>;

def : GCNPat<
(fcanonicalize (f16 (fneg (VOP3Mods f16:$src, i32:$src_mods)))),
(V_MUL_F16_t16_e64 0, (i16 CONST.FP16_NEG_ONE), $src_mods, $src, 0/*Clamp*/, /*omod*/0, /*opsel*/0)
>;
} // End True16Predicate

let True16Predicate = UseFakeTrue16Insts in {
def : GCNPat<
(fcanonicalize (f16 (VOP3Mods f16:$src, i32:$src_mods))),
(V_MUL_F16_fake16_e64 0, (i32 CONST.FP16_ONE), $src_mods, $src)
>;

def : GCNPat<
(fcanonicalize (f16 (fneg (VOP3Mods f16:$src, i32:$src_mods)))),
(V_MUL_F16_fake16_e64 0, (i32 CONST.FP16_NEG_ONE), $src_mods, $src)
>;
} // End True16Predicate

def : GCNPat<
(fcanonicalize (v2f16 (VOP3PMods v2f16:$src, i32:$src_mods))),
(V_PK_MUL_F16 0, (i32 CONST.FP16_ONE), $src_mods, $src, DSTCLAMP.NONE)
Expand Down