0e1ac4e749
Spilling a register in Liftoff require a scratch register when the offset of the stack slot from fp is greater than 2^12. This CL adds a check to LiftoffAssembler::Spill on arm to check that a scratch register is available. It also fixes one case where the scratch register was not available. R=clemensb@chromium.org CC=zhin@chromium.org Bug: chromium:1075953 Change-Id: Idb2bc7e26e3d4fbd6bb0eb6c9a9b8cfd8b3c569e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2172424 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#67494}
39 lines
1.2 KiB
JavaScript
39 lines
1.2 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: --wasm-staging
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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(1, 1, false, true);
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const sig = builder.addType(makeSig([], [kWasmI32]));
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builder.addFunction(undefined, sig)
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.addLocals({i32_count: 1002}).addLocals({i64_count: 3})
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.addBodyWithEnd([
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// signature: i_v
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// body:
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kExprLocalGet, 0xec, 0x07, // local.get
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kExprLocalGet, 0xea, 0x07, // local.set
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kExprLocalGet, 0x17, // local.set
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kExprLocalGet, 0xb5, 0x01, // local.set
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kExprI32Const, 0x00, // i32.const
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kExprIf, kWasmI32, // if @39 i32
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kExprI32Const, 0x91, 0xe8, 0x7e, // i32.const
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kExprElse, // else @45
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kExprI32Const, 0x00, // i32.const
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kExprEnd, // end @48
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kExprIf, kWasmStmt, // if @49
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kExprI32Const, 0x00, // i32.const
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kExprI32Const, 0x00, // i32.const
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kAtomicPrefix, kExprI32AtomicSub, 0x01, 0x04, // i32.atomic.sub
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kExprDrop,
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kExprEnd,
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kExprUnreachable,
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kExprEnd
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]);
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const instance = builder.instantiate();
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