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/unit.fromasm.clamp.no-opts b/test/unit.fromasm.clamp.no-opts
index 6a576e3ca..55ec07e1e 100644
--- a/test/unit.fromasm.clamp.no-opts
+++ b/test/unit.fromasm.clamp.no-opts
@@ -7,6 +7,10 @@
  (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" "memoryBase" (global $memoryBase i32))
+ (import "env" "tableBase" (global $tableBase i32))
  (import "global" "NaN" (global $t$asm2wasm$import f64))
  (import "global" "Infinity" (global $u$asm2wasm$import f64))
  (import "env" "tempDoublePtr" (global $tempDoublePtr$asm2wasm$import i32))
@@ -19,10 +23,6 @@
  (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 $t (mut f64) (get_global $t$asm2wasm$import))
  (global $u (mut f64) (get_global $u$asm2wasm$import))
  (global $Int (mut i32) (i32.const 0))