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[AMDGPU] Restrict operands of ld_scale_paired to low 256 vgprs. NFCI #157935

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Merged
merged 1 commit into from
Sep 10, 2025
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[AMDGPU] Restrict operands of ld_scale_paired to low 256 vgprs. NFCI #157935

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4 changes: 2 additions & 2 deletions llvm/lib/Target/AMDGPU/VOP3PInstructions.td
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Original file line number Diff line number Diff line change
Expand Up @@ -1857,8 +1857,8 @@ defm V_WMMA_SCALE_F32_32X16X128_F4_w32 : WMMAInstGFX12<"v_wmma_scale_f32_32x16
defm V_WMMA_SCALE16_F32_32X16X128_F4_w32 : WMMAInstGFX12<"v_wmma_scale16_f32_32x16x128_f4", F32_32X16X128_F4_SCALE16_w32, "_w32">;
} // End is_wmma_xdl = 1.

defm V_WMMA_LD_SCALE_PAIRED_B32 : VOP3PInst<"v_wmma_ld_scale_paired_b32", VOP_WMMA_LD_SCALE<i32, VCSrc_b32>>;
defm V_WMMA_LD_SCALE16_PAIRED_B64 : VOP3PInst<"v_wmma_ld_scale16_paired_b64", VOP_WMMA_LD_SCALE<i64, VCSrc_b64>>;
defm V_WMMA_LD_SCALE_PAIRED_B32 : VOP3PInst<"v_wmma_ld_scale_paired_b32", VOP_WMMA_LD_SCALE<i32, VCSrc_b32_Lo256>>;
defm V_WMMA_LD_SCALE16_PAIRED_B64 : VOP3PInst<"v_wmma_ld_scale16_paired_b64", VOP_WMMA_LD_SCALE<i64, VCSrc_b64_Lo256>>;
} // End SubtargetPredicate = isGFX125xOnly
} // End WaveSizePredicate = isWave32

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