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, 3 insertions, 4 deletions

diff --git a/test/unit.fromasm.imprecise b/test/unit.fromasm.imprecise
index 1212a4c34..80d6eb00d 100644
--- a/test/unit.fromasm.imprecise
+++ b/test/unit.fromasm.imprecise
@@ -7,6 +7,9 @@
  (type $FUNCSIG$ii (func (param i32) (result i32)))
  (type $FUNCSIG$dd (func (param f64) (result f64)))
  (type $FUNCSIG$i (func (result i32)))
+ (import "env" "memory" (memory $0 256 256))
+ (import "env" "table" (table 25 25 anyfunc))
+ (import "env" "tableBase" (global $tableBase i32))
  (import "env" "gb" (global $n$asm2wasm$import i32))
  (import "env" "setTempRet0" (func $setTempRet0 (param i32) (result i32)))
  (import "env" "abort" (func $abort (param f64) (result f64)))
@@ -15,10 +18,6 @@
  (import "env" "return_int" (func $return_int (result i32)))
  (import "env" "emscripten_log" (func $emscripten_log))
  (import "asm2wasm" "f64-rem" (func $f64-rem (param f64 f64) (result f64)))
- (import "env" "memory" (memory $0 256 256))
- (import "env" "table" (table 25 25 anyfunc))
- (import "env" "memoryBase" (global $memoryBase i32))
- (import "env" "tableBase" (global $tableBase i32))
  (global $Int (mut i32) (i32.const 0))
  (global $Double (mut f64) (f64.const 0))
  (global $n (mut i32) (get_global $n$asm2wasm$import))