[clang] [llvm] [AMDGPU][True16][MC][CodeGen] true16 for v_alignbyte_b32 (PR #119750)

[Brox Chen via llvm-commits]

================
@@ -3802,6 +3802,26 @@ def : FPMinCanonMaxPat<V_MINIMUMMAXIMUM_F16_fake16_e64, f16, DivergentBinFrag<fm
 def : FPMinCanonMaxPat<V_MAXIMUMMINIMUM_F16_fake16_e64, f16, DivergentBinFrag<fminimum>, fmaximum_oneuse>;
 }
 
+let True16Predicate = UseFakeTrue16Insts in
+def : GCNPat <
+(i32 (int_amdgcn_alignbyte (i32 (VOP3OpSelMods i32:$src0, i32:$src0_modifiers)),
+                           (i32 (VOP3OpSelMods i32:$src1, i32:$src1_modifiers)),
+                           (i32 (VOP3OpSelMods i32:$src2, i32:$src2_modifiers)))),
+(V_ALIGNBYTE_B32_fake16_e64 i32:$src0_modifiers, VSrc_b32:$src0,
+                            i32:$src1_modifiers, VSrc_b32:$src1,
+                            i32:$src2_modifiers, VGPR_32:$src2)
+>;
+
+let True16Predicate = UseRealTrue16Insts in
----------------
broxigarchen wrote:

moved to VOP3Instructions.td

https://github.com/llvm/llvm-project/pull/119750