From f6d5a9df297997af5165ff164cb1609fbc0239e6 Mon Sep 17 00:00:00 2001 From: Alon Zakai Date: Sun, 8 May 2016 14:12:39 -0700 Subject: Be more careful when loading i64 in wasm-js glue, we had a bug where the bits were trampled before we read them (#460) --- test/wasm_backend/i64_load.cpp | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 test/wasm_backend/i64_load.cpp (limited to 'test/wasm_backend/i64_load.cpp') diff --git a/test/wasm_backend/i64_load.cpp b/test/wasm_backend/i64_load.cpp new file mode 100644 index 000000000..a54b31650 --- /dev/null +++ b/test/wasm_backend/i64_load.cpp @@ -0,0 +1,15 @@ +#include +#include + +struct S1 { unsigned lo:32; unsigned mid:2; unsigned hi:30; }; + +static struct S1 g_68 = { -1, 0, 0xbbe }; // 0xbbe = 3006 + +extern "C" void emscripten_autodebug_i32(int32_t x, int32_t y); + +int main() { + emscripten_autodebug_i32(0, g_68.lo); + emscripten_autodebug_i32(1, g_68.mid); + emscripten_autodebug_i32(2, g_68.hi); + return 0; +} -- cgit v1.2.3