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wpewebkit: update to version 2.52.3
Update WPEWebKit to the 2.52 stable major release branch. Includes a pending patchset to get WASM BBQJIT working on RISCV64, upstream PR https://github.com/WebKit/WebKit/pull/65621 Alltogether this brings acceptable performance (even with LLVMPipe Mesa software renderer) on RISCV64. Link: https://wpewebkit.org/release/wpewebkit-2.52.0.html Link: https://wpewebkit.org/release/wpewebkit-2.52.1.html Link: https://wpewebkit.org/release/wpewebkit-2.52.2.html Link: https://wpewebkit.org/release/wpewebkit-2.52.3.html Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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@@ -0,0 +1,56 @@
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From: Daniel Golle <daniel@makrotopia.org>
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Subject: [PATCH] WTF: enable WebAssembly and BBQJIT on RISCV64
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RISCV64 previously had ENABLE_WEBASSEMBLY=1 but ENABLE_WEBASSEMBLY_BBQJIT=0
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and ENABLE_WEBASSEMBLY_OMGJIT=0. The LLInt-based wasm interpreter that used
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to back this combination was replaced by the IPInt in-place interpreter,
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which is not ported to RISCV64, so this configuration left no wasm execution
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tier available and JSC aborted at startup with:
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INCOHERENT OPTIONS: at least one of useWasmIPInt, or useBBQJIT must be true
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Turn ENABLE_WEBASSEMBLY_BBQJIT on for RISCV64 so BBQJIT becomes the wasm
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execution tier on this architecture. IPInt and OMGJIT remain off.
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The companion changes that make this safe at build- and run-time:
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* MacroAssemblerRISCV64.h gains noop SIMD stubs and hard-fault stubs for
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the wasm atomic MacroAssembler primitives that BBQJIT uses.
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* Options.cpp no longer forces useBBQJIT() = false on RISCV64.
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* Options.cpp already forces useWasmSIMD() = false on non-X86_64/ARM64
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architectures (and useSharedArrayBuffer defaults to false), so wasm
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SIMD codegen and wasm atomic codegen are never reached on RISCV64
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and their stubs are unreachable.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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--- a/Source/WTF/wtf/PlatformEnable.h
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+++ b/Source/WTF/wtf/PlatformEnable.h
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@@ -738,12 +738,28 @@
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#endif
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#if CPU(RISCV64)
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+// RISCV64 wasm execution tiers:
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+// - IPInt (LLInt in-place interpreter): not ported; left disabled.
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+// LowLevelInterpreter.asm's IPInt call-trampoline labels are stubbed
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+// to crash() so the link still succeeds.
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+// - BBQJIT: enabled. The arch-conditional sites in WasmBBQJIT64.cpp
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+// that have no #else fall through to portable MacroAssembler
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+// primitives; the remaining gaps (wasm SIMD codegen, wasm atomics
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+// codegen) are addressed by gating both off at runtime:
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+// Options::useWasmSIMD = false (already set in Options.cpp for
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+// !X86_64 && !ARM64),
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+// Options::useSharedArrayBuffer = false (the default), which in
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+// turn keeps wasm atomic opcodes off the JIT codepath.
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+// MacroAssemblerRISCV64.h carries hard-fault stubs for the wasm
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+// atomic / SIMD MacroAssembler entry points so they trap loudly if
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+// the runtime gating is ever bypassed.
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+// - OMGJIT: not ported.
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#undef ENABLE_WEBASSEMBLY
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#define ENABLE_WEBASSEMBLY 1
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#undef ENABLE_WEBASSEMBLY_OMGJIT
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#define ENABLE_WEBASSEMBLY_OMGJIT 0
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#undef ENABLE_WEBASSEMBLY_BBQJIT
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-#define ENABLE_WEBASSEMBLY_BBQJIT 0
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+#define ENABLE_WEBASSEMBLY_BBQJIT 1
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#endif
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#if !defined(ENABLE_C_LOOP)
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