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;; Test that optimizers don't do redundant-load, store-to-load, or dead-store
;; optimizations when there are interfering stores, even of different types
;; and to non-identical addresses.
(module
(memory 1 1)
(func (export "zero_everything")
(i32.store (i32.const 0) (i32.const 0))
(i32.store (i32.const 4) (i32.const 0))
(i32.store (i32.const 8) (i32.const 0))
(i32.store (i32.const 12) (i32.const 0))
)
(func (export "test_store_to_load") (result i32)
(i32.store (i32.const 8) (i32.const 0))
(f32.store (i32.const 5) (f32.const -0.0))
(i32.load (i32.const 8))
)
(func (export "test_redundant_load") (result i32)
(local $t i32)
(local $s i32)
(local.set $t (i32.load (i32.const 8)))
(i32.store (i32.const 5) (i32.const 0x80000000))
(local.set $s (i32.load (i32.const 8)))
(i32.add (local.get $t) (local.get $s))
)
(func (export "test_dead_store") (result f32)
(local $t f32)
(i32.store (i32.const 8) (i32.const 0x23232323))
(local.set $t (f32.load (i32.const 11)))
(i32.store (i32.const 8) (i32.const 0))
(local.get $t)
)
)
(assert_return (invoke "test_store_to_load") (i32.const 0x00000080))
(invoke "zero_everything")
(assert_return (invoke "test_redundant_load") (i32.const 0x00000080))
(invoke "zero_everything")
(assert_return (invoke "test_dead_store") (f32.const 0x1.18p-144))
|
