Add Windows i686 cross build

Author: Rot127

.github/workflows/CrossBuilds.yml

@@ -80,6 +80,18 @@ jobs:
               packages: 'gcc-powerpc64-linux-gnu g++-powerpc64-linux-gnu binutils-powerpc64-linux-gnu libc6-dev-ppc64-cross qemu-user-static',
               cross_file: 'cross_configs/linux_ppc64_ubuntu24.cmake',
             }
+          - {
+              name: '[BUILD ONLY] Windows i686 mingw',
+              os: ubuntu-24.04,
+              arch: x64,
+              build-system: 'cmake',
+              diet-build: 'OFF',
+              build_type: 'Debug',
+              diet_build: false,
+              skip_tests: true,
+              packages: 'gcc-mingw-w64-i686 g++-mingw-w64-i686 mingw-w64-tools',
+              cross_file: 'cross_configs/windows_i686_ubuntu24.cmake',
+            }
           - {
               name: '[BUILD ONLY] Android 35 (arm64_v8a) NDK 29',
               os: ubuntu-24.04,

cross_configs/windows_i686_ubuntu24.cmake

@@ -0,0 +1,13 @@
+# This example file is for builds on Ubunutu 24.04.
+set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR i686)
+
+set(CMAKE_C_COMPILER   i686-w64-mingw32-gcc)
+set(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
+set(CMAKE_RC_COMPILER  i686-w64-mingw32-windres)
+
+set(CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32)
+
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

tests/MC/AArch64/basic-a64-instructions.s.yaml

@@ -4839,7 +4839,7 @@ test_cases:
     expected:
       insns:
         -
-          asm_text: "cbnz x3, #-4"
+          asm_text: "cbnz x3, #0xfffffffffffffffc"
 
   -
     input: