[lanai] Add Lanai backend to clang driver.

Changes to clang to add Lanai backend. Adds a new target, ABI and toolchain.

General Lanai backend discussion on llvm-dev thread "[RFC] Lanai backend" (http://lists.llvm.org/pipermail/llvm-dev/2016-February/095118.html).

Differential Revision: http://reviews.llvm.org/D17002

llvm-svn: 264655

1 files changed, 86 insertions, 0 deletions

diff --git a/clang/test/Driver/lanai-unknown-unknown.cpp b/clang/test/Driver/lanai-unknown-unknown.cpp
new file mode 100644
index 00000000000..5ce0adf9f3a
--- /dev/null
+++ b/clang/test/Driver/lanai-unknown-unknown.cpp
@@ -0,0 +1,86 @@
+// RUN: %clang -target lanai-unknown-unknown -### %s -emit-llvm-only -c 2>&1 \
+// RUN:   | FileCheck %s -check-prefix=ECHO
+// RUN: %clang -target lanai-unknown-unknown %s -emit-llvm -S -o - \
+// RUN:   | FileCheck %s
+
+// ECHO: {{.*}} "-cc1" {{.*}}lanai-unknown-unknown.c
+
+typedef __builtin_va_list va_list;
+typedef __SIZE_TYPE__ size_t;
+typedef __PTRDIFF_TYPE__ ptrdiff_t;
+
+extern "C" {
+
+// CHECK: @align_c = global i32 1
+int align_c = __alignof(char);
+
+// CHECK: @align_s = global i32 2
+int align_s = __alignof(short);
+
+// CHECK: @align_i = global i32 4
+int align_i = __alignof(int);
+
+// CHECK: @align_l = global i32 4
+int align_l = __alignof(long);
+
+// CHECK: @align_ll = global i32 8
+int align_ll = __alignof(long long);
+
+// CHECK: @align_p = global i32 4
+int align_p = __alignof(void*);
+
+// CHECK: @align_vl = global i32 4
+int align_vl = __alignof(va_list);
+
+// Check types
+
+// CHECK: signext i8 @check_char()
+char check_char() { return 0; }
+
+// CHECK: signext i16 @check_short()
+short check_short() { return 0; }
+
+// CHECK: i32 @check_int()
+int check_int() { return 0; }
+
+// CHECK: i32 @check_long()
+long check_long() { return 0; }
+
+// CHECK: i64 @check_longlong()
+long long check_longlong() { return 0; }
+
+// CHECK: zeroext i8 @check_uchar()
+unsigned char check_uchar() { return 0; }
+
+// CHECK: zeroext i16 @check_ushort()
+unsigned short check_ushort() { return 0; }
+
+// CHECK: i32 @check_uint()
+unsigned int check_uint() { return 0; }
+
+// CHECK: i32 @check_ulong()
+unsigned long check_ulong() { return 0; }
+
+// CHECK: i64 @check_ulonglong()
+unsigned long long check_ulonglong() { return 0; }
+
+// CHECK: i32 @check_size_t()
+size_t check_size_t() { return 0; }
+
+}
+
+template<int> void Switch();
+template<> void Switch<4>();
+template<> void Switch<8>();
+template<> void Switch<16>();
+
+void check_pointer_size() {
+  // CHECK: SwitchILi4
+  Switch<sizeof(void*)>();
+
+  // CHECK: SwitchILi8
+  Switch<sizeof(long long)>();
+
+  // CHECK: SwitchILi4
+  Switch<sizeof(va_list)>();
+}