Optimize out memory and table when possible (#1352)

We can remove the memory/table (itself, or an import if imported) if they are not used. This is pretty minor on a large wasm file, but when reading small wasts it's very noticeable to have an unused memory and table all the time.

1 files changed, 4 insertions, 4 deletions

diff --git a/test/threads.fromasm.no-opts b/test/threads.fromasm.no-opts
index 512d6bac3..dc353d039 100644
--- a/test/threads.fromasm.no-opts
+++ b/test/threads.fromasm.no-opts
@@ -1,4 +1,8 @@
 (module
+ (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))
  (import "env" "DYNAMICTOP_PTR" (global $DYNAMICTOP_PTR$asm2wasm$import i32))
  (import "env" "tempDoublePtr" (global $tempDoublePtr$asm2wasm$import i32))
  (import "env" "ABORT" (global $ABORT$asm2wasm$import i32))
@@ -6,10 +10,6 @@
  (import "env" "STACK_MAX" (global $STACK_MAX$asm2wasm$import i32))
  (import "global" "NaN" (global $nan$asm2wasm$import f64))
  (import "global" "Infinity" (global $inf$asm2wasm$import f64))
- (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 $DYNAMICTOP_PTR (mut i32) (get_global $DYNAMICTOP_PTR$asm2wasm$import))
  (global $tempDoublePtr (mut i32) (get_global $tempDoublePtr$asm2wasm$import))
  (global $ABORT (mut i32) (get_global $ABORT$asm2wasm$import))