[llvm] [AMDGPU][True16][MC] VINTERP instructions supporting true16/fake16 (PR #113634)

[Ivan Kosarev via llvm-commits]

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@@ -167,45 +184,60 @@ multiclass VInterpF16Pat <SDPatternOperator op, Instruction inst,
 
 def : VInterpF32Pat<int_amdgcn_interp_inreg_p10, V_INTERP_P10_F32_inreg>;
 def : VInterpF32Pat<int_amdgcn_interp_inreg_p2, V_INTERP_P2_F32_inreg>;
+
+let True16Predicate = UseFakeTrue16Insts in {
 defm : VInterpF16Pat<int_amdgcn_interp_inreg_p10_f16,
-                     V_INTERP_P10_F16_F32_inreg, f32,
+                     V_INTERP_P10_F16_F32_inreg_fake16, f32,
                      [VINTERPModsHi, VINTERPMods, VINTERPModsHi]>;
 defm : VInterpF16Pat<int_amdgcn_interp_inreg_p2_f16,
-                     V_INTERP_P2_F16_F32_inreg, f16,
+                     V_INTERP_P2_F16_F32_inreg_fake16, f16,
                      [VINTERPModsHi, VINTERPMods, VINTERPMods]>;
 defm : VInterpF16Pat<int_amdgcn_interp_p10_rtz_f16,
-                     V_INTERP_P10_RTZ_F16_F32_inreg, f32,
+                     V_INTERP_P10_RTZ_F16_F32_inreg_fake16, f32,
                      [VINTERPModsHi, VINTERPMods, VINTERPModsHi]>;
 defm : VInterpF16Pat<int_amdgcn_interp_p2_rtz_f16,
-                     V_INTERP_P2_RTZ_F16_F32_inreg, f16,
+                     V_INTERP_P2_RTZ_F16_F32_inreg_fake16, f16,
                      [VINTERPModsHi, VINTERPMods, VINTERPMods]>;
+}
 
 //===----------------------------------------------------------------------===//
 // VINTERP Real Instructions
 //===----------------------------------------------------------------------===//
 
-multiclass VINTERP_Real_gfx11 <bits<7> op> {
-  let AssemblerPredicate = isGFX11Only, DecoderNamespace = "GFX11" in {
-    def _gfx11 :
-      VINTERP_Real<!cast<VOP3_Pseudo>(NAME), SIEncodingFamily.GFX11>,
-      VINTERPe_gfx11<op, !cast<VOP3_Pseudo>(NAME).Pfl>;
+multiclass VINTERP_Real_gfx11 <bits<7> op, string asmName> {
+  defvar ps = !cast<VOP3_Pseudo>(NAME);
+  let AssemblerPredicate = isGFX11Only,
+      DecoderNamespace = "GFX11" #
+                         !if(ps.Pfl.IsRealTrue16, "", "_FAKE16") in {
+     def _gfx11 :
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kosarev wrote:

Nit: indentation is off. +Same below.

https://github.com/llvm/llvm-project/pull/113634