[llvm] [gn] port 375cc88b510150d (AMDGPU -gisel-extended-llt) (PR #209181)

[Nico Weber via llvm-commits]

https://github.com/nico created https://github.com/llvm/llvm-project/pull/209181

None

>From 74f9b476e2520d00653f135c260cd0c9dc170b70 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis at chromium.org>
Date: Mon, 13 Jul 2026 09:38:22 -0400
Subject: [PATCH] [gn] port 375cc88b510150d (AMDGPU -gisel-extended-llt)

---
 llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn b/llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn
index 0f55ac27fa797..7b19c38b0147f 100644
--- a/llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn
@@ -20,7 +20,10 @@ tablegen("AMDGPUGenDAGISel") {
 
 tablegen("AMDGPUGenGlobalISel") {
   visibility = [ ":LLVMAMDGPUCodeGen" ]
-  args = [ "-gen-global-isel" ]
+  args = [
+    "-gen-global-isel",
+    "-gisel-extended-llt",
+  ]
   td_file = "AMDGPUGISel.td"
 }
 
@@ -29,6 +32,7 @@ tablegen("AMDGPUGenPreLegalizeGICombiner") {
   args = [
     "-gen-global-isel-combiner",
     "-combiners=AMDGPUPreLegalizerCombiner",
+    "-gisel-extended-llt",
   ]
   td_file = "AMDGPUGISel.td"
 }
@@ -38,6 +42,7 @@ tablegen("AMDGPUGenPostLegalizeGICombiner") {
   args = [
     "-gen-global-isel-combiner",
     "-combiners=AMDGPUPostLegalizerCombiner",
+    "-gisel-extended-llt",
   ]
   td_file = "AMDGPUGISel.td"
 }
@@ -47,6 +52,7 @@ tablegen("AMDGPUGenRegBankGICombiner") {
   args = [
     "-gen-global-isel-combiner",
     "-combiners=AMDGPURegBankCombiner",
+    "-gisel-extended-llt",
   ]
   td_file = "AMDGPUGISel.td"
 }