44d3ae7032
This relands commit 7d955faa76.
Changed the test case to use i16x8 splat instead of i8x16 splat,
the latter was causing issues when doing scalar lowering. This
change still causes the regression test to fail without the fix.
Original change's description:
> [wasm-simd][x64][ia32] Do not overwrite input register
>
> We are ovewriting input register (contains the shift) when we are
> masking it, instead, move to a temporary,then mask it.
>
> Bug: chromium:1065599
> Change-Id: Iab72b94581239447e444746681387350b576e24a
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2125941
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#66997}
Bug: chromium:1065599
Change-Id: I0dc78ddb013652ef88c07d065c3f6877937c5300
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2136220
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67026}
28 lines
1.0 KiB
JavaScript
28 lines
1.0 KiB
JavaScript
// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --experimental-wasm-simd
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load('test/mjsunit/wasm/wasm-module-builder.js');
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const builder = new WasmModuleBuilder();
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builder.addMemory(16, 32, false);
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builder.addType(makeSig([kWasmI32, kWasmI32, kWasmI32], [kWasmI32]));
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// Generate function 1 (out of 1).
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builder.addFunction(undefined, 0 /* sig */).addBodyWithEnd([
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// signature: i_iii
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// body:
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kExprI32Const, 0xba, 0x01, // i32.const
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kSimdPrefix, kExprI16x8Splat, // i16x8.splat
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kExprMemorySize, 0x00, // memory.size
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kSimdPrefix, kExprI16x8ShrS, // i16x8.shr_s
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kSimdPrefix, kExprS1x16AnyTrue, // s1x16.any_true
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kExprMemorySize, 0x00, // memory.size
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kExprI32RemS, // i32.rem_s
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kExprEnd, // end @15
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]);
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builder.addExport('main', 0);
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const instance = builder.instantiate();
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instance.exports.main(1, 2, 3);
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