[llvm] AMDGPU: Remove triple field from subtarget (PR #164208)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm created https://github.com/llvm/llvm-project/pull/164208

This is redundant and already exists in the base class, and
is also unused.

>From 42ca42fa1a35f8c94a18cbd7c13a7b682183e78c Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault at amd.com>
Date: Mon, 20 Oct 2025 14:59:45 +0900
Subject: [PATCH] AMDGPU: Remove triple field from subtarget

This is redundant and already exists in the base class, and
is also unused.
---
 llvm/lib/Target/AMDGPU/GCNSubtarget.cpp | 1 -
 llvm/lib/Target/AMDGPU/GCNSubtarget.h   | 1 -
 2 files changed, 2 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/GCNSubtarget.cpp b/llvm/lib/Target/AMDGPU/GCNSubtarget.cpp
index f291e373a470d..c8bbcbbd76928 100644
--- a/llvm/lib/Target/AMDGPU/GCNSubtarget.cpp
+++ b/llvm/lib/Target/AMDGPU/GCNSubtarget.cpp
@@ -169,7 +169,6 @@ GCNSubtarget::GCNSubtarget(const Triple &TT, StringRef GPU, StringRef FS,
     : // clang-format off
     AMDGPUGenSubtargetInfo(TT, GPU, /*TuneCPU*/ GPU, FS),
     AMDGPUSubtarget(TT),
-    TargetTriple(TT),
     TargetID(*this),
     InstrItins(getInstrItineraryForCPU(GPU)),
     InstrInfo(initializeSubtargetDependencies(TT, GPU, FS)),
diff --git a/llvm/lib/Target/AMDGPU/GCNSubtarget.h b/llvm/lib/Target/AMDGPU/GCNSubtarget.h
index c2e6078bcc61a..a46678081b51c 100644
--- a/llvm/lib/Target/AMDGPU/GCNSubtarget.h
+++ b/llvm/lib/Target/AMDGPU/GCNSubtarget.h
@@ -60,7 +60,6 @@ class GCNSubtarget final : public AMDGPUGenSubtargetInfo,
 
 protected:
   // Basic subtarget description.
-  Triple TargetTriple;
   AMDGPU::IsaInfo::AMDGPUTargetID TargetID;
   unsigned Gen = INVALID;
   InstrItineraryData InstrItins;