[llvm] AMDGPU: Define and Use HasInterpInsts for interp inst definitions (PR #84102)

[Changpeng Fang via llvm-commits]

https://github.com/changpeng created https://github.com/llvm/llvm-project/pull/84102

None

>From f815ee4d9f613103f2d18ac98838d12cb42d356a Mon Sep 17 00:00:00 2001
From: Changpeng Fang <changpeng.fang at amd.com>
Date: Tue, 5 Mar 2024 17:34:45 -0800
Subject: [PATCH] AMDGPU: Define and Use HasInterpInsts for interp inst
 definitions

---
 llvm/lib/Target/AMDGPU/AMDGPU.td              | 3 +++
 llvm/lib/Target/AMDGPU/GCNSubtarget.h         | 4 ++++
 llvm/lib/Target/AMDGPU/VINTERPInstructions.td | 4 ++--
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/AMDGPU.td b/llvm/lib/Target/AMDGPU/AMDGPU.td
index 814ac0b93fcf01..8906c46f279e22 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPU.td
+++ b/llvm/lib/Target/AMDGPU/AMDGPU.td
@@ -1877,6 +1877,9 @@ def NotLDSRequiresM0Init : Predicate<"!Subtarget->ldsRequiresM0Init()">;
 def HasExpOrExportInsts : Predicate<"Subtarget->hasExpOrExportInsts()">,
   AssemblerPredicate<(all_of (not FeatureGFX90AInsts))>;
 
+def HasInterpInsts : Predicate<"Subtarget->hasInterpInsts()">,
+  AssemblerPredicate<(all_of FeatureGFX11Insts)>;
+
 def HasDSAddTid : Predicate<"Subtarget->getGeneration() >= AMDGPUSubtarget::GFX9">,
   AssemblerPredicate<(all_of FeatureGFX9Insts)>;
 
diff --git a/llvm/lib/Target/AMDGPU/GCNSubtarget.h b/llvm/lib/Target/AMDGPU/GCNSubtarget.h
index bb0ccfce324fd8..3283ac72aa4dd6 100644
--- a/llvm/lib/Target/AMDGPU/GCNSubtarget.h
+++ b/llvm/lib/Target/AMDGPU/GCNSubtarget.h
@@ -651,6 +651,10 @@ class GCNSubtarget final : public AMDGPUGenSubtargetInfo,
     return !hasGFX940Insts();
   }
 
+  bool hasInterpInsts() const {
+    return GFX11Insts;
+  }
+
   // DS_ADD_F64/DS_ADD_RTN_F64
   bool hasLdsAtomicAddF64() const { return hasGFX90AInsts(); }
 
diff --git a/llvm/lib/Target/AMDGPU/VINTERPInstructions.td b/llvm/lib/Target/AMDGPU/VINTERPInstructions.td
index f84e163b2df037..0303d1e23a0add 100644
--- a/llvm/lib/Target/AMDGPU/VINTERPInstructions.td
+++ b/llvm/lib/Target/AMDGPU/VINTERPInstructions.td
@@ -105,7 +105,7 @@ class VOP3_VINTERP_F16 <list<ValueType> ArgVT> : VOPProfile<ArgVT> {
 // VINTERP Pseudo Instructions
 //===----------------------------------------------------------------------===//
 
-let SubtargetPredicate = isGFX11Plus in {
+let SubtargetPredicate = HasInterpInsts in {
 
 let Uses = [M0, EXEC, MODE] in {
 def V_INTERP_P10_F32_inreg : VINTERP_Pseudo <"v_interp_p10_f32", VOP3_VINTERP_F32>;
@@ -123,7 +123,7 @@ def V_INTERP_P2_RTZ_F16_F32_inreg :
   VINTERP_Pseudo <"v_interp_p2_rtz_f16_f32", VOP3_VINTERP_F16<[f16, f32, f32, f32]>>;
 } // Uses = [M0, EXEC]
 
-} // SubtargetPredicate = isGFX11Plus
+} // SubtargetPredicate = HasInterpInsts.
 
 class VInterpF32Pat <SDPatternOperator op, Instruction inst> : GCNPat <
    (f32 (op