Trans - Draft ARM32 support

3 files changed, 42 insertions, 9 deletions

diff --git a/src/hir/deserialise.cpp b/src/hir/deserialise.cpp
index b7cba83b..326debd7 100644
--- a/src/hir/deserialise.cpp
+++ b/src/hir/deserialise.cpp
@@ -752,7 +752,7 @@ namespace {
         _(Array, {
             deserialise_ptr< ::HIR::TypeRef>(),
             nullptr,
-            m_in.read_u64c() & SIZE_MAX
+            static_cast<size_t>(m_in.read_u64c() & SIZE_MAX)
             })
         _(Slice, {
             deserialise_ptr< ::HIR::TypeRef>()
diff --git a/src/main.cpp b/src/main.cpp
index b23bb9e9..2b5b2234 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -29,17 +29,31 @@
 
 // Hacky default target
 #ifdef _MSC_VER
-#define DEFAULT_TARGET_NAME "x86-windows-msvc"
-#elif defined(__GNU__)
-# if defined(__linux__)
-#define DEFAULT_TARGET_NAME "x86_64-linux-gnu"
-# elif defined(_WIN64)
-#define DEFAULT_TARGET_NAME "x86_64-windows-gnu"
+# if defined(_X64)
+#  define DEFAULT_TARGET_NAME "x86_64-windows-msvc"
 # else
-#define DEFAULT_TARGET_NAME "x86_64-windows-gnu"
+#  define DEFAULT_TARGET_NAME "x86-windows-msvc"
+# endif
+#elif defined(__linux__)
+# if defined(__amd64__)
+#  define DEFAULT_TARGET_NAME "x86_64-linux-gnu"
+# elif defined(__aarch64__)
+#  define DEFAULT_TARGET_NAME "arm64-linux-gnu"
+# elif defined(__arm__)
+#  define DEFAULT_TARGET_NAME "arm-linux-gnu"
+# elif defined(__i386__)
+#  define DEFAULT_TARGET_NAME "i586-linux-gnu"
+# else
+#  error "Unable to detect a suitable default target (linux-gnu)"
+# endif
+#elif defined(__MINGW32__)
+# if defined(_WIN64)
+#  define DEFAULT_TARGET_NAME "x86_64-windows-gnu"
+# else
+#  define DEFAULT_TARGET_NAME "i586-windows-gnu"
 # endif
 #else
-#define DEFAULT_TARGET_NAME "x86_64-linux-gnu"
+# error "Unable to detect a suitable default target"
 #endif
 
 int g_debug_indent_level = 0;
diff --git a/src/trans/target.cpp b/src/trans/target.cpp
index f13b20a3..c4aa5d55 100644
--- a/src/trans/target.cpp
+++ b/src/trans/target.cpp
@@ -23,6 +23,11 @@ TargetArch ARCH_X86 = {
     32, false,
     { /*atomic(u8)=*/true, false, true, false,  true }
 };
+TargetArch ARCH_ARM32 = {
+    "arm32",
+    32, false,
+    { /*atomic(u8)=*/true, false, true, false,  true }
+};
 TargetSpec  g_target;
 
 
@@ -40,6 +45,13 @@ namespace
         {
             return load_spec_from_file(target_name);
         }
+        else if(target_name == "i586-linux-gnu")
+        {
+            return TargetSpec {
+                "unix", "linux", "gnu", CodegenMode::Gnu11,
+                ARCH_X86
+                };
+        }
         else if(target_name == "x86_64-linux-gnu")
         {
             return TargetSpec {
@@ -47,6 +59,13 @@ namespace
                 ARCH_X86_64
                 };
         }
+        else if(target_name == "arm-linux-gnu")
+        {
+            return TargetSpec {
+                "unix", "linux", "gnu", CodegenMode::Gnu11,
+                ARCH_ARM32
+                };
+        }
         else if(target_name == "x86_64-windows-gnu")
         {
             return TargetSpec {