[clang] [Driver] Support using toolchain libc and libc++ for baremetal (PR #96736)

[Petr Hosek via cfe-commits]

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@@ -26,6 +26,20 @@
 // RUN:     --sysroot=%S/Inputs/baremetal_arm | FileCheck --check-prefix=CHECK-V6M-LIBINC %s
 // CHECK-V6M-LIBINC-NOT: "-internal-isystem"
 
+// RUN: %clang %s -### --target=armv6m-none-eabi -o %t.out 2>&1 \
+// RUN:     -ccc-install-dir %S/Inputs/basic_baremetal_tree/bin \
+// RUN:   | FileCheck --check-prefix=CHECK-V6M-TREE %s
+// CHECK-V6M-TREE:      InstalledDir: [[INSTALLED_DIR:.+]]
+// CHECK-V6M-TREE:      "-cc1" "-triple" "thumbv6m-unknown-none-eabi"
+// CHECK-V6M-TREE-SAME: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
+// CHECK-V6M-TREE-SAME: "-internal-isystem" "[[INSTALLED_DIR]]{{[/\\]+}}..{{[/\\]+}}include{{[/\\]+}}armv6m-unknown-none-eabi{{[/\\]+}}c++{{[/\\]+}}v1"
+// CHECK-V6M-TREE-SAME: "-internal-isystem" "[[INSTALLED_DIR]]{{[/\\]+}}..{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
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petrhosek wrote:

Done

https://github.com/llvm/llvm-project/pull/96736