Wasm2js: support i64 globals (#2021)

Split them into two i32 globals.

4 files changed, 127 insertions, 1 deletions

diff --git a/test/passes/flatten_i64-to-i32-lowering.txt b/test/passes/flatten_i64-to-i32-lowering.txt
index 3c3535e53..6863be7e8 100644
--- a/test/passes/flatten_i64-to-i32-lowering.txt
+++ b/test/passes/flatten_i64-to-i32-lowering.txt
@@ -79,3 +79,61 @@
   )
  )
 )
+(module
+ (type $0 (func (param i32 i32)))
+ (type $1 (func))
+ (global $f (mut i32) (i32.const -1412567121))
+ (global $g (mut i32) (global.get $f))
+ (global $f$hi (mut i32) (i32.const 305419896))
+ (global $g$hi (mut i32) (global.get $f$hi))
+ (global $i64toi32_i32$HIGH_BITS (mut i32) (i32.const 0))
+ (export "exp" (func $1))
+ (func $call (; 0 ;) (type $0) (param $0 i32) (param $0$hi i32)
+  (nop)
+ )
+ (func $1 (; 1 ;) (type $1)
+  (local $0 i32)
+  (local $0$hi i32)
+  (local $i64toi32_i32$0 i32)
+  (block
+   (block
+    (local.set $0
+     (block (result i32)
+      (local.set $i64toi32_i32$0
+       (global.get $f$hi)
+      )
+      (global.get $f)
+     )
+    )
+    (local.set $0$hi
+     (local.get $i64toi32_i32$0)
+    )
+   )
+   (call $call
+    (block (result i32)
+     (local.set $i64toi32_i32$0
+      (local.get $0$hi)
+     )
+     (local.get $0)
+    )
+    (local.get $i64toi32_i32$0)
+   )
+   (nop)
+   (block
+    (global.set $f
+     (block (result i32)
+      (local.set $i64toi32_i32$0
+       (i32.const 287454020)
+      )
+      (i32.const 1432778632)
+     )
+    )
+    (global.set $f$hi
+     (local.get $i64toi32_i32$0)
+    )
+   )
+   (nop)
+  )
+  (nop)
+ )
+)
diff --git a/test/passes/flatten_i64-to-i32-lowering.wast b/test/passes/flatten_i64-to-i32-lowering.wast
index 179cac467..def4f3a34 100644
--- a/test/passes/flatten_i64-to-i32-lowering.wast
+++ b/test/passes/flatten_i64-to-i32-lowering.wast
@@ -4,4 +4,12 @@
     (i64.add (i64.const 1) (i64.const 2))
   )
 )
-
+(module
+ (global $f (mut i64) (i64.const 0x12345678ABCDEFAF))
+ (global $g (mut i64) (global.get $f))
+ (func $call (param i64))
+ (func "exp"
+  (call $call (global.get $f))
+  (global.set $f (i64.const 0x1122334455667788))
+ )
+)
diff --git a/test/wasm2js/global_i64.2asm.js b/test/wasm2js/global_i64.2asm.js
new file mode 100644
index 000000000..8b279f956
--- /dev/null
+++ b/test/wasm2js/global_i64.2asm.js
@@ -0,0 +1,51 @@
+
+function asmFunc(global, env, buffer) {
+ "use asm";
+ var HEAP8 = new global.Int8Array(buffer);
+ var HEAP16 = new global.Int16Array(buffer);
+ var HEAP32 = new global.Int32Array(buffer);
+ var HEAPU8 = new global.Uint8Array(buffer);
+ var HEAPU16 = new global.Uint16Array(buffer);
+ var HEAPU32 = new global.Uint32Array(buffer);
+ var HEAPF32 = new global.Float32Array(buffer);
+ var HEAPF64 = new global.Float64Array(buffer);
+ var Math_imul = global.Math.imul;
+ var Math_fround = global.Math.fround;
+ var Math_abs = global.Math.abs;
+ var Math_clz32 = global.Math.clz32;
+ var Math_min = global.Math.min;
+ var Math_max = global.Math.max;
+ var Math_floor = global.Math.floor;
+ var Math_ceil = global.Math.ceil;
+ var Math_sqrt = global.Math.sqrt;
+ var abort = env.abort;
+ var nan = global.NaN;
+ var infinity = global.Infinity;
+ var f = 2882400175;
+ var g = f;
+ var f$hi = 305419896;
+ var g$hi = f$hi;
+ var i64toi32_i32$HIGH_BITS = 0;
+ function call($0, $0$hi) {
+  $0 = $0 | 0;
+  $0$hi = $0$hi | 0;
+ }
+ 
+ function $1() {
+  var i64toi32_i32$0 = 0;
+  i64toi32_i32$0 = f$hi;
+  call(f | 0, i64toi32_i32$0 | 0);
+  i64toi32_i32$0 = 287454020;
+  f = 1432778632;
+  f$hi = i64toi32_i32$0;
+ }
+ 
+ var FUNCTION_TABLE = [];
+ return {
+  exp: $1
+ };
+}
+
+const memasmFunc = new ArrayBuffer(65536);
+const retasmFunc = asmFunc({Math,Int8Array,Uint8Array,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array,NaN,Infinity}, {abort:function() { throw new Error('abort'); }},memasmFunc);
+export const exp = retasmFunc.exp;
diff --git a/test/wasm2js/global_i64.wast b/test/wasm2js/global_i64.wast
new file mode 100644
index 000000000..99fa419c1
--- /dev/null
+++ b/test/wasm2js/global_i64.wast
@@ -0,0 +1,9 @@
+(module
+ (global $f (mut i64) (i64.const 0x12345678ABCDEFAF))
+ (global $g (mut i64) (global.get $f))
+ (func $call (param i64))
+ (func "exp"
+  (call $call (global.get $f))
+  (global.set $f (i64.const 0x1122334455667788))
+ )
+)