Begin using the Emscripten toolchain in clang.

With the Emscripten toolchain, we can make clang do more of what we need
directly rather than in the wrapper scripts.

1 files changed, 98 insertions, 0 deletions

diff --git a/tests/asmjs-unknown-emscripten.c b/tests/asmjs-unknown-emscripten.c
new file mode 100644
index 00000000..36071964
--- /dev/null
+++ b/tests/asmjs-unknown-emscripten.c
@@ -0,0 +1,98 @@
+#ifndef __EMSCRIPTEN__
+#error __EMSCRIPTEN__ is not defined
+#endif
+#ifndef __asmjs__
+#error __asmjs__ is not defined
+#endif
+#ifdef __cplusplus
+#ifndef _GNU_SOURCE
+#error _GNU_SOURCE is not defined in C++
+#endif
+#endif
+#ifndef __unix__
+#error __unix__ is not defined
+#endif
+#ifndef __LITTLE_ENDIAN__
+#error __LITTLE_ENDIAN__ is not defined
+#endif
+
+#ifdef __clang__
+#if __has_feature(pnacl)
+#error has feature pnacl
+#endif
+#endif
+
+#ifdef __native_client__
+#error __native_client__ is defined
+#endif
+#ifdef __pnacl__
+#error __pnacl__ is defined
+#endif
+#ifdef __ELF__
+#error __ELF__ is defined
+#endif
+#ifdef __i386__
+#error __i386__ is defined
+#endif
+#ifdef __i386
+#error __i386 is defined
+#endif
+#ifdef i386
+#error i386 is defined
+#endif
+#ifdef __SSE__
+#error __SSE__ is defined
+#endif
+#ifdef __SSE2__
+#error __SSE2__ is defined
+#endif
+#ifdef __SSE_MATH__
+#error __SSE_MATH__ is defined
+#endif
+#ifdef __SSE2_MATH__
+#error __SSE2_MATH__ is defined
+#endif
+#ifdef __MMX__
+#error __MMX__ is defined
+#endif
+#ifdef __APPLE__
+#error __APPLE__ is defined
+#endif
+#ifdef __linux__
+#error __linux__ is defined
+#endif
+#ifdef __BIG_ENDIAN__
+#error __BIG_ENDIAN__ is defined
+#endif
+#ifdef __LP64__
+#error __LP64__ is defined
+#endif
+
+// We prefer to use __EMSCRIPTEN__, but for compatibility, we define
+// EMSCRIPTEN too.
+#ifndef EMSCRIPTEN
+#error EMSCRIPTEN is not defined
+#endif
+
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h>
+#include <assert.h>
+
+#define STRINGIZE_HELPER(x) #x
+#define STRINGIZE(x) STRINGIZE_HELPER(x)
+
+int main() {
+  assert(sizeof(void*) == 4);
+  assert(sizeof(long) == 4);
+  assert(sizeof(intmax_t) == 8);
+  assert(__alignof(double) == 8);
+  assert(sizeof(long double) == 8);
+  assert(__alignof(long double) == 8);
+  assert(sizeof(intptr_t) == 4);
+  assert(sizeof(size_t) == 4);
+  assert(sizeof(ptrdiff_t) == 4);
+  assert(__FLT_EVAL_METHOD__ == 0);
+  assert(strcmp(STRINGIZE(__USER_LABEL_PREFIX__), "") == 0);
+  return 0;
+}