[llvm] [AMDGPU][MC] Allow dpp in v_dot2_f32_bf16 for GFX11 and 12 (PR #142451)

[Jun Wang via llvm-commits]

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@@ -45,6 +45,15 @@ v_dot2_f32_bf16 v5, src_scc, vcc_lo, src_scc neg_lo:[1,0,0] neg_hi:[1,0,0]
 v_dot2_f32_bf16 v255, 0xfe0b, vcc_hi, 0.5 neg_lo:[0,1,0] neg_hi:[0,1,0] clamp
 // GFX11: [0xff,0xc2,0x1a,0xcc,0xff,0xd6,0xc0,0x5b,0x0b,0xfe,0x00,0x00]
 
+v_dot2_f32_bf16_e64_dpp v1, v2, v3, v4 quad_perm:[0,1,2,3] row_mask:0xf bank_mask:0xf
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jwanggit86 wrote:

done.

https://github.com/llvm/llvm-project/pull/142451