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emit bytecode for Asm.js/Wasm intrinsics
Summary: CallIntrinsicInst now emits bytecodes for corresponding intrinsics. One new bytecode per intrinsic. Currently the VM treats them as nops, except add32. New bytecodes are added at the end to save us from touching superpack. Reviewed By: tmikov Differential Revision: D29733491 fbshipit-source-id: a83ca7518de5f3dd87d494ec653729b31cee6716
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| Original file line number | Diff line number | Diff line change |
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| /** | ||
| * Copyright (c) Facebook, Inc. and its affiliates. | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
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| // RUN: %hermesc -funsafe-intrinsics -target=HBC -dump-postra %s | %FileCheck --match-full-lines --check-prefix=CHKRA %s | ||
| // RUN: %hermesc -funsafe-intrinsics -target=HBC -dump-bytecode %s | %FileCheck --match-full-lines --check-prefix=CHKBC %s | ||
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| // Setup Asm.js/Wasm memory | ||
| var buffer = new ArrayBuffer(131072); | ||
| var HEAP8 = new Int8Array(buffer); | ||
| var HEAP16 = new Int16Array(buffer); | ||
| var HEAP32 = new Int32Array(buffer); | ||
| var HEAPU8 = new Uint8Array(buffer); | ||
| var HEAPU16 = new Uint16Array(buffer); | ||
| var HEAPU32 = new Uint32Array(buffer); | ||
| var HEAPF32 = new Float32Array(buffer); | ||
| var HEAPF64 = new Float64Array(buffer); | ||
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| for (let i = 0; i < 256; i++) { | ||
| HEAPU8[i] = i; | ||
| } | ||
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| function loads(func) { | ||
| t0 = __uasm.loadi8(HEAP8, 0); | ||
| t1 = __uasm.loadu8(HEAPU8, 0); | ||
| t2 = __uasm.loadi16(HEAP16, 0); | ||
| t3 = __uasm.loadu16(HEAPU16, 0); | ||
| t4 = __uasm.loadi32(HEAP32, 0); | ||
| t5 = __uasm.loadu32(HEAPU32, 0); | ||
| } | ||
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| //CHKRA-LABEL:function loads(func) : undefined | ||
| //CHKRA-NEXT:frame = [] | ||
| //CHKRA-NEXT:%BB0: | ||
| //CHKRA-NEXT: %0 = HBCGetGlobalObjectInst | ||
| //CHKRA-NEXT: %1 = LoadPropertyInst %0 : object, "HEAP8" : string | ||
| //CHKRA-NEXT: %2 = ImplicitMovInst undefined : undefined | ||
| //CHKRA-NEXT: %3 = HBCLoadConstInst 0 : number | ||
| //CHKRA-NEXT: %4 = CallIntrinsicInst [__uasm.loadi8_2] : number, undefined : undefined, %1, %3 : number | ||
| //CHKRA-NEXT: %5 = StorePropertyInst %4, %0 : object, "t0" : string | ||
| //CHKRA-NEXT: %6 = LoadPropertyInst %0 : object, "HEAPU8" : string | ||
| //CHKRA-NEXT: %7 = ImplicitMovInst undefined : undefined | ||
| //CHKRA-NEXT: %8 = CallIntrinsicInst [__uasm.loadu8_2] : number, undefined : undefined, %6, %3 : number | ||
| //CHKRA-NEXT: %9 = StorePropertyInst %8, %0 : object, "t1" : string | ||
| //CHKRA-NEXT: %10 = LoadPropertyInst %0 : object, "HEAP16" : string | ||
| //CHKRA-NEXT: %11 = ImplicitMovInst undefined : undefined | ||
| //CHKRA-NEXT: %12 = CallIntrinsicInst [__uasm.loadi16_2] : number, undefined : undefined, %10, %3 : number | ||
| //CHKRA-NEXT: %13 = StorePropertyInst %12, %0 : object, "t2" : string | ||
| //CHKRA-NEXT: %14 = LoadPropertyInst %0 : object, "HEAPU16" : string | ||
| //CHKRA-NEXT: %15 = ImplicitMovInst undefined : undefined | ||
| //CHKRA-NEXT: %16 = CallIntrinsicInst [__uasm.loadu16_2] : number, undefined : undefined, %14, %3 : number | ||
| //CHKRA-NEXT: %17 = StorePropertyInst %16, %0 : object, "t3" : string | ||
| //CHKRA-NEXT: %18 = LoadPropertyInst %0 : object, "HEAP32" : string | ||
| //CHKRA-NEXT: %19 = ImplicitMovInst undefined : undefined | ||
| //CHKRA-NEXT: %20 = CallIntrinsicInst [__uasm.loadi32_2] : number, undefined : undefined, %18, %3 : number | ||
| //CHKRA-NEXT: %21 = StorePropertyInst %20, %0 : object, "t4" : string | ||
| //CHKRA-NEXT: %22 = LoadPropertyInst %0 : object, "HEAPU32" : string | ||
| //CHKRA-NEXT: %23 = ImplicitMovInst undefined : undefined | ||
| //CHKRA-NEXT: %24 = CallIntrinsicInst [__uasm.loadu32_2] : number, undefined : undefined, %22, %3 : number | ||
| //CHKRA-NEXT: %25 = StorePropertyInst %24, %0 : object, "t5" : string | ||
| //CHKRA-NEXT: %26 = HBCLoadConstInst undefined : undefined | ||
| //CHKRA-NEXT: %27 = ReturnInst %26 : undefined | ||
| //CHKRA-NEXT:function_end | ||
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| //CHKBC-LABEL:Function<loads>(2 params, 12 registers, 0 symbols): | ||
| //CHKBC-NEXT:Offset in debug table: source 0x00b0, lexical 0x0000 | ||
| //CHKBC-NEXT: GetGlobalObject r1 | ||
| //CHKBC-NEXT: GetByIdShort r4, r1, 1, "HEAP8" | ||
| //CHKBC-NEXT: LoadConstZero r3 | ||
| //CHKBC-NEXT: Loadi8 r0, r4, r3 | ||
| //CHKBC-NEXT: PutById r1, r0, 1, "t0" | ||
| //CHKBC-NEXT: GetByIdShort r4, r1, 2, "HEAPU8" | ||
| //CHKBC-NEXT: Loadu8 r0, r4, r3 | ||
| //CHKBC-NEXT: PutById r1, r0, 2, "t1" | ||
| //CHKBC-NEXT: GetByIdShort r4, r1, 3, "HEAP16" | ||
| //CHKBC-NEXT: Loadi16 r0, r4, r3 | ||
| //CHKBC-NEXT: PutById r1, r0, 3, "t2" | ||
| //CHKBC-NEXT: GetByIdShort r4, r1, 4, "HEAPU16" | ||
| //CHKBC-NEXT: Loadu16 r0, r4, r3 | ||
| //CHKBC-NEXT: PutById r1, r0, 4, "t3" | ||
| //CHKBC-NEXT: GetByIdShort r4, r1, 5, "HEAP32" | ||
| //CHKBC-NEXT: Loadi32 r0, r4, r3 | ||
| //CHKBC-NEXT: PutById r1, r0, 5, "t4" | ||
| //CHKBC-NEXT: GetByIdShort r4, r1, 6, "HEAPU32" | ||
| //CHKBC-NEXT: Loadu32 r0, r4, r3 | ||
| //CHKBC-NEXT: PutById r1, r0, 6, "t5" | ||
| //CHKBC-NEXT: LoadConstUndefined r0 | ||
| //CHKBC-NEXT: Ret r0 | ||
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| function stores(func, x) { | ||
| __uasm.store8(HEAP8, 0, x); | ||
| __uasm.store16(HEAP16, 0, x); | ||
| __uasm.store32(HEAP32, 0, x); | ||
| } | ||
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| //CHKRA-LABEL:function stores(func, x) : undefined | ||
| //CHKRA-NEXT:frame = [] | ||
| //CHKRA-NEXT:%BB0: | ||
| //CHKRA-NEXT: %0 = HBCLoadParamInst 2 : number | ||
| //CHKRA-NEXT: %1 = HBCGetGlobalObjectInst | ||
| //CHKRA-NEXT: %2 = LoadPropertyInst %1 : object, "HEAP8" : string | ||
| //CHKRA-NEXT: %3 = ImplicitMovInst undefined : undefined | ||
| //CHKRA-NEXT: %4 = HBCLoadConstInst 0 : number | ||
| //CHKRA-NEXT: %5 = MovInst %0 | ||
| //CHKRA-NEXT: %6 = CallIntrinsicInst [__uasm.store8_3] : number, undefined : undefined, %2, %4 : number, %5 | ||
| //CHKRA-NEXT: %7 = LoadPropertyInst %1 : object, "HEAP16" : string | ||
| //CHKRA-NEXT: %8 = ImplicitMovInst undefined : undefined | ||
| //CHKRA-NEXT: %9 = MovInst %0 | ||
| //CHKRA-NEXT: %10 = CallIntrinsicInst [__uasm.store16_3] : number, undefined : undefined, %7, %4 : number, %9 | ||
| //CHKRA-NEXT: %11 = LoadPropertyInst %1 : object, "HEAP32" : string | ||
| //CHKRA-NEXT: %12 = ImplicitMovInst undefined : undefined | ||
| //CHKRA-NEXT: %13 = MovInst %0 | ||
| //CHKRA-NEXT: %14 = CallIntrinsicInst [__uasm.store32_3] : number, undefined : undefined, %11, %4 : number, %13 | ||
| //CHKRA-NEXT: %15 = HBCLoadConstInst undefined : undefined | ||
| //CHKRA-NEXT: %16 = ReturnInst %15 : undefined | ||
| //CHKRA-NEXT:function_end | ||
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| //CHKBC-LABEL:Function<stores>(3 params, 14 registers, 0 symbols): | ||
| //CHKBC-NEXT:Offset in debug table: source 0x00ea, lexical 0x0000 | ||
| //CHKBC-NEXT: LoadParam r2, 2 | ||
| //CHKBC-NEXT: GetGlobalObject r0 | ||
| //CHKBC-NEXT: GetByIdShort r6, r0, 1, "HEAP8" | ||
| //CHKBC-NEXT: LoadConstZero r5 | ||
| //CHKBC-NEXT: Mov r4, r2 | ||
| //CHKBC-NEXT: Store8 r6, r5, r4 | ||
| //CHKBC-NEXT: GetByIdShort r6, r0, 2, "HEAP16" | ||
| //CHKBC-NEXT: Mov r4, r2 | ||
| //CHKBC-NEXT: Store16 r6, r5, r4 | ||
| //CHKBC-NEXT: GetByIdShort r6, r0, 3, "HEAP32" | ||
| //CHKBC-NEXT: Mov r4, r2 | ||
| //CHKBC-NEXT: Store32 r6, r5, r4 | ||
| //CHKBC-NEXT: LoadConstUndefined r0 | ||
| //CHKBC-NEXT: Ret r0 |
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