[LLD][COFF] Add test for hybrid patchable thunks on ARM64X (NFC) (#126135)

Author: cjacek

lld/test/COFF/arm64ec-patchable-thunks.test

@@ -5,6 +5,7 @@ RUN: llvm-mc -filetype=obj -triple=arm64ec-windows arm64ec-patchable.s -o arm64e
 RUN: llvm-mc -filetype=obj -triple=arm64ec-windows arm64ec-alias.s -o arm64ec-alias.obj
 RUN: llvm-mc -filetype=obj -triple=arm64ec-windows test-sec.s -o test-sec.obj
 RUN: llvm-mc -filetype=obj -triple=arm64ec-windows %S/Inputs/loadconfig-arm64ec.s -o loadconfig-arm64ec.obj
+RUN: llvm-mc -filetype=obj -triple=aarch64-windows %S/Inputs/loadconfig-arm64.s -o loadconfig-arm64.obj
 
 RUN: lld-link -out:test.dll -machine:arm64ec arm64ec-patchable.obj test-sec.obj loadconfig-arm64ec.obj -dll -noentry
 
@@ -59,6 +60,18 @@ RUN: not lld-link -out:test4.dll -machine:arm64ec test-sec.obj loadconfig-arm64e
 ERR: error: undefined symbol: EXP+#patchable_func
 
 
+RUN: lld-link -out:testx.dll -machine:arm64x arm64ec-patchable.obj test-sec.obj \
+RUN:          loadconfig-arm64.obj loadconfig-arm64ec.obj -dll -noentry
+RUN: llvm-objdump -d testx.dll | FileCheck -check-prefix=PATCH-DISASM %s
+RUN: llvm-readobj --coff-load-config testx.dll | FileCheck -check-prefix=PATCH-CHPE %s
+
+
+RUN: lld-link -out:testx2.dll -machine:arm64x arm64ec-alias.obj loadconfig-arm64.obj \
+RUN:          loadconfig-arm64ec.obj -dll -noentry
+RUN: llvm-objdump -d testx2.dll | FileCheck -check-prefix=PATCH-DISASM %s
+RUN: llvm-readobj --coff-load-config testx2.dll | FileCheck -check-prefix=PATCH-CHPE %s
+
+
 #--- arm64ec-patchable.s
     .section ".text", "x", discard, "#patchable_func$hp_target"
     .globl "#patchable_func$hp_target"