23816fcb58
Ext mul's codegen assumes that all inputs are in registers, but the instruction-selector wasn't the correct constraints. The codegen for ext mul is slightly complicated so we chose to restrict the inputs to be registers rather than changing codegen. Bug: chromium:1165966,v8:11262 Change-Id: I5d4eb56d17a4d0a2927b089dbf74362c7e7ff4fc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2626711 Reviewed-by: Bill Budge <bbudge@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#72073}
43 lines
1.5 KiB
JavaScript
43 lines
1.5 KiB
JavaScript
// Copyright 2021 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: --wasm-staging
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// This test case is simplified slightly from a fuzzer-generated test case. It
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// causes spills for one of the inputs to kExprI64x2ExtMulHighI32x4U, which the
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// codegen incorrectly assumes will always be a register.
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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, true);
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// Generate function 1 (out of 1).
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builder.addFunction(undefined, kSig_i_v)
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.addLocals(kWasmI64, 1)
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.addBodyWithEnd([
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// signature: i_v
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// body:
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kExprI32Const, 0x00, // i32.const
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kExprI32Const, 0x00, // i32.const
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kExprI32Const, 0x00, // i32.const
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kExprSelectWithType, 0x01, 0x7f, // select
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kExprMemoryGrow, 0x00, // memory.grow
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kExprI32Const, 0xb0, 0xde, 0xc9, 0x03, // i32.const
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kSimdPrefix, kExprI8x16Splat, // i8x16.splat
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kExprI32Const, 0x00, // i32.const
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kSimdPrefix, kExprI8x16Splat, // i8x16.splat
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kExprI32Const, 0xb0, 0xe0, 0xc0, 0x01, // i32.const
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kSimdPrefix, kExprI8x16Splat, // i8x16.splat
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kSimdPrefix, kExprI64x2ExtMulHighI32x4U, 0x01, // i64x2.extmul_high_i32x4_u
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kSimdPrefix, kExprF32x4Le, // f32x4.le
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kSimdPrefix, kExprI32x4ExtractLane, 0x00, // i32x4.extract_lane
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kExprI32DivS, // i32.div_s
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kExprEnd, // end @41
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]);
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builder.addExport('main', 0);
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const instance = builder.instantiate();
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assertThrows(
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() => instance.exports.main(),
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WebAssembly.RuntimeError,
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"divide by zero");
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