Use splatted zero vector in makeZero (#2164)

This prevents the optimizer from producing v128.const instructions,
which are not supported by V8 at this time.

2 files changed, 21 insertions, 1 deletions

diff --git a/test/passes/ssa-nomerge.txt b/test/passes/ssa-nomerge_enable-simd.txt
index 48f34f054..7674e0626 100644
--- a/test/passes/ssa-nomerge.txt
+++ b/test/passes/ssa-nomerge_enable-simd.txt
@@ -1,6 +1,8 @@
 (module
  (type $FUNCSIG$vi (func (param i32)))
  (type $FUNCSIG$vii (func (param i32 i32)))
+ (type $FUNCSIG$v (func))
+ (memory $0 1 1)
  (global $global$0 (mut i32) (i32.const 1))
  (func $basics (; 0 ;) (type $FUNCSIG$vi) (param $x i32)
   (local $y i32)
@@ -199,4 +201,14 @@
    (local.get $x)
   )
  )
+ (func $simd-zero (; 4 ;) (type $FUNCSIG$v)
+  (local $0 v128)
+  (v128.store align=4
+   (i32.const 0)
+   (i32x4.splat
+    (i32.const 0)
+   )
+  )
+  (unreachable)
+ )
 )
diff --git a/test/passes/ssa-nomerge.wast b/test/passes/ssa-nomerge_enable-simd.wast
index dec7c89e5..fa1187a7f 100644
--- a/test/passes/ssa-nomerge.wast
+++ b/test/passes/ssa-nomerge_enable-simd.wast
@@ -1,4 +1,5 @@
 (module
+  (memory 1 1)
   (global $global$0 (mut i32) (i32.const 1))
   (func $basics (param $x i32)
     (local $y i32)
@@ -98,5 +99,12 @@
     )
     (call $nomerge (local.get $x) (local.get $x))
   )
+  (func $simd-zero
+   (local $0 v128)
+   (v128.store align=4
+    (i32.const 0)
+    (local.get $0)
+   )
+   (unreachable)
+  )
 )
-