6316601006
The {ParallelRegisterMove} at the end of {AtomicLoad} might need a
temporary scratch register for spilling values to the stack. Make sure
that one is available by giving up the scratch register used for the
address of the atomic access.
R=ahaas@chromium.org
Bug: chromium:1153442
Change-Id: I267c43e2193662c420f96f6683ebd4bbb0e1bca3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2566759
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71564}
62 lines
1.9 KiB
JavaScript
62 lines
1.9 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-threads
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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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builder.addGlobal(kWasmI32, 1);
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builder.addGlobal(kWasmI32, 1);
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builder.addType(makeSig([kWasmI32, kWasmI64, kWasmI32], []));
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// Generate function 1 (out of 1).
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builder.addFunction(undefined, 0 /* sig */)
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.addLocals(kWasmI32, 10)
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.addBodyWithEnd([
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// signature: v_ili
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// body:
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kExprI32Const, 0x00, // i32.const
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kExprLocalSet, 0x04, // local.set
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kExprI32Const, 0x01, // i32.const
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kExprLocalSet, 0x05, // local.set
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kExprBlock, kWasmStmt, // block @11
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kExprBr, 0x00, // br depth=0
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kExprEnd, // end @15
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kExprGlobalGet, 0x01, // global.get
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kExprLocalSet, 0x03, // local.set
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kExprLocalGet, 0x03, // local.get
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kExprI32Const, 0x01, // i32.const
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kExprI32Sub, // i32.sub
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kExprLocalSet, 0x06, // local.set
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kExprI64Const, 0x01, // i64.const
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kExprLocalSet, 0x01, // local.set
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kExprI32Const, 0x00, // i32.const
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kExprI32Eqz, // i32.eqz
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kExprLocalSet, 0x07, // local.set
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kExprBlock, kWasmStmt, // block @36
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kExprBr, 0x00, // br depth=0
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kExprEnd, // end @40
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kExprGlobalGet, 0x01, // global.get
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kExprLocalSet, 0x08, // local.set
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kExprI32Const, 0x01, // i32.const
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kExprI32Const, 0x01, // i32.const
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kExprI32Sub, // i32.sub
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kExprLocalSet, 0x09, // local.set
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kExprLocalGet, 0x00, // local.get
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kExprLocalSet, 0x0a, // local.set
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kExprGlobalGet, 0x00, // global.get
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kExprLocalSet, 0x0b, // local.set
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kExprI32Const, 0x00, // i32.const
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kExprI32Const, 0x0f, // i32.const
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kExprI32And, // i32.and
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kExprLocalSet, 0x0c, // local.set
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kExprI32Const, 0x00, // i32.const
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kAtomicPrefix, kExprI64AtomicLoad, 0x03, 0x04, // i64.atomic.load64
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kExprDrop, // drop
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kExprUnreachable, // unreachable
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kExprEnd, // end @75
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]);
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builder.toModule();
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