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Diffstat (limited to '')
-rw-r--r-- | js/src/jit-test/tests/wasm/regress/unaligned-store64.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/regress/unaligned-store64.js b/js/src/jit-test/tests/wasm/regress/unaligned-store64.js new file mode 100644 index 0000000000..b878093451 --- /dev/null +++ b/js/src/jit-test/tests/wasm/regress/unaligned-store64.js @@ -0,0 +1,35 @@ +var ins = new WebAssembly.Instance(new WebAssembly.Module(wasmTextToBinary( + `(module + (memory (export "mem") 1 1) + (func (export "store_32_1") (param $ptr i32) + (i64.store32 align=1 (local.get $ptr) (i64.const 0xabba1337))) + (func (export "store_32_2") (param $ptr i32) + (i64.store32 align=2 (local.get $ptr) (i64.const 0xabba1337))) + (func (export "store_16") (param $ptr i32) + (i64.store16 align=1 (local.get $ptr) (i64.const 0x1337))))`))).exports; + +var mem = new Uint8Array(ins.mem.buffer); + +ins.store_16(1); +assertEq(mem[1], 0x37); +assertEq(mem[2], 0x13); + +ins.store_32_1(11); +assertEq(mem[11], 0x37); +assertEq(mem[12], 0x13); +assertEq(mem[13], 0xba); +assertEq(mem[14], 0xab); + +ins.store_32_2(18); +assertEq(mem[18], 0x37); +assertEq(mem[19], 0x13); +assertEq(mem[20], 0xba); +assertEq(mem[21], 0xab); + +// This must also work on all platforms even though we're lying about the +// alignment. +ins.store_32_2(29); +assertEq(mem[29], 0x37); +assertEq(mem[30], 0x13); +assertEq(mem[31], 0xba); +assertEq(mem[32], 0xab); |