add i64_atomics_* support to asm2wasm (#1262)

* add i64_atomics_* support to asm2wasm

* OptimizeInstructions: atomic loads can't be signed

1 files changed, 90 insertions, 0 deletions

diff --git a/test/threads.wasm-only.fromasm.no-opts b/test/threads.wasm-only.fromasm.no-opts
new file mode 100644
index 000000000..abaca2010
--- /dev/null
+++ b/test/threads.wasm-only.fromasm.no-opts
@@ -0,0 +1,90 @@
+(module
+ (import "env" "STACKTOP" (global $STACKTOP$asm2wasm$import i32))
+ (import "env" "memory" (memory $0 (shared 256 256)))
+ (import "env" "table" (table 0 0 anyfunc))
+ (import "env" "memoryBase" (global $memoryBase i32))
+ (import "env" "tableBase" (global $tableBase i32))
+ (global $STACKTOP (mut i32) (get_global $STACKTOP$asm2wasm$import))
+ (global $tempRet0 (mut i32) (i32.const 0))
+ (export "test64" (func $legalstub$test64))
+ (func $test64 (; 0 ;) (result i64)
+  (local $x i64)
+  (local $y i64)
+  (local $z i32)
+  (local $int32 i32)
+  (local $float32 f32)
+  (local $float64 f64)
+  (i64.atomic.store
+   (i32.const 4656)
+   (i64.const 92)
+  )
+  (set_local $x
+   (i64.atomic.load
+    (i32.const 4656)
+   )
+  )
+  (set_local $y
+   (i64.atomic.rmw.add
+    (get_local $int32)
+    (i64.const 26)
+   )
+  )
+  (set_local $x
+   (i64.atomic.rmw.sub
+    (i32.const 1024)
+    (get_local $y)
+   )
+  )
+  (set_local $y
+   (i64.atomic.rmw.and
+    (i32.const 1024)
+    (get_local $x)
+   )
+  )
+  (set_local $x
+   (i64.atomic.rmw.or
+    (i32.const 1024)
+    (get_local $y)
+   )
+  )
+  (set_local $y
+   (i64.atomic.rmw.xor
+    (i32.const 1024)
+    (get_local $x)
+   )
+  )
+  (set_local $x
+   (i64.atomic.rmw.xchg
+    (i32.const 1024)
+    (get_local $y)
+   )
+  )
+  (set_local $y
+   (i64.atomic.rmw.cmpxchg
+    (i32.const 1024)
+    (get_local $x)
+    (get_local $y)
+   )
+  )
+  (return
+   (get_local $x)
+  )
+ )
+ (func $legalstub$test64 (; 1 ;) (result i32)
+  (local $0 i64)
+  (set_local $0
+   (call $test64)
+  )
+  (set_global $tempRet0
+   (i32.wrap/i64
+    (i64.shr_u
+     (get_local $0)
+     (i64.const 32)
+    )
+   )
+  )
+  (i32.wrap/i64
+   (get_local $0)
+  )
+ )
+)