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From 4ea88cc5db943eb84b1194a7dc5dcbe849c43c46 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Wed, 23 Sep 2026 14:33:27 +0100
Subject: [PATCH] JavaScriptCore: handle RISCV64 in ipintReloadMemory
ipintReloadMemory() reloads the cached memory base and bounds-checking
size, using a paired load on ARM64 and two separate loads on X86_64. Any
other architecture falls through the if without loading anything, leaving
both registers stale.
RISC-V has no load-pair instruction, so reuse the X86_64 path.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
Source/JavaScriptCore/llint/InPlaceInterpreter.asm | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/Source/JavaScriptCore/llint/InPlaceInterpreter.asm
+++ b/Source/JavaScriptCore/llint/InPlaceInterpreter.asm
@@ -429,7 +429,7 @@ end
macro ipintReloadMemory(scratch)
if ARM64 or ARM64E
loadpairq constexpr (JSWebAssemblyInstance::offsetOfCachedMemoryBaseSizePair(0))[wasmInstance], memoryBase, boundsCheckingSize
- elsif X86_64
+ elsif X86_64 or RISCV64
loadp constexpr (JSWebAssemblyInstance::offsetOfCachedMemoryBaseSizePair(0))[wasmInstance], memoryBase
loadp constexpr (JSWebAssemblyInstance::offsetOfCachedMemoryBaseSizePair(0) + 8)[wasmInstance], boundsCheckingSize
end
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