[clang] clang/AMDGPU: Add missing driver tests for invalid target names (PR #212451)

[Matt Arsenault via cfe-commits]

https://github.com/arsenm created https://github.com/llvm/llvm-project/pull/212451

Make sure -march and -mcpu both error for nonoffload and for
-Xopenmp-target arguments. Defends against regression I almost
introduced.

>From aec0ee3e9d2d1a062e6c590b2ec92a7effd1f166 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault at amd.com>
Date: Tue, 28 Jul 2026 12:07:11 +0200
Subject: [PATCH] clang/AMDGPU: Add missing driver tests for invalid target
 names

Make sure -march and -mcpu both error for nonoffload and for
-Xopenmp-target arguments. Defends against regression I almost
introduced.
---
 clang/test/Driver/invalid-target-id.cl       | 4 ++++
 clang/test/Driver/openmp-invalid-target-id.c | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/clang/test/Driver/invalid-target-id.cl b/clang/test/Driver/invalid-target-id.cl
index f93e618e460be..57b4574814886 100644
--- a/clang/test/Driver/invalid-target-id.cl
+++ b/clang/test/Driver/invalid-target-id.cl
@@ -2,6 +2,10 @@
 // RUN:   -mcpu=gfx908xnack -nostdlib \
 // RUN:   %s 2>&1 | FileCheck -check-prefix=NOPLUS %s
 
+// RUN: not %clang -target amdgcn-amd-amdhsa \
+// RUN:   -march=gfx908xnack -nostdlib -### \
+// RUN:   %s 2>&1 | FileCheck -check-prefix=NOPLUS %s
+
 // NOPLUS: error: invalid target ID 'gfx908xnack'
 
 // RUN: not %clang -target amdgcn-amd-amdpal \
diff --git a/clang/test/Driver/openmp-invalid-target-id.c b/clang/test/Driver/openmp-invalid-target-id.c
index 0b0d33b0543d8..d27b28310c8c1 100644
--- a/clang/test/Driver/openmp-invalid-target-id.c
+++ b/clang/test/Driver/openmp-invalid-target-id.c
@@ -9,6 +9,12 @@
 // RUN:   -Xopenmp-target=amdgcn-amd-amdhsa -march=gfx908xnack \
 // RUN:   %s 2>&1 | FileCheck -check-prefix=NOPLUS-L %s
 
+// RUN: not %clang -### -target x86_64-linux-gnu -fopenmp=libomp \
+// RUN:   -fopenmp-targets=amdgcn-amd-amdhsa,amdgcn-amd-amdhsa \
+// RUN:   -Xopenmp-target=amdgcn-amd-amdhsa -mcpu=gfx908 \
+// RUN:   -Xopenmp-target=amdgcn-amd-amdhsa -mcpu=gfx908xnack \
+// RUN:   %s 2>&1 | FileCheck -check-prefix=NOPLUS-L %s
+
 // NOPLUS-L: error: invalid target ID 'gfx908xnack'
 
 // RUN: not %clang -### -target x86_64-linux-gnu -fopenmp=libomp \