From 1a32f82807ae01813f14bdf12fed75eb32799e18 Mon Sep 17 00:00:00 2001
From: Cheng Shao <terrorjack@type.dance>
Date: Tue, 7 May 2024 20:45:32 +0000
Subject: [PATCH] hadrian: disable in-tree gmp fft code path for wasm32
This patch disables in-tree GMP FFT code paths for wasm32 target in
order to give up some performance of multiplying very large operands
in exchange for reduced code size.
---
hadrian/src/Settings/Builders/Configure.hs | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hadrian/src/Settings/Builders/Configure.hs b/hadrian/src/Settings/Builders/Configure.hs
index 83d60306728d..fadeed02331a 100644
--- a/hadrian/src/Settings/Builders/Configure.hs
+++ b/hadrian/src/Settings/Builders/Configure.hs
@@ -17,6 +17,10 @@ configureBuilderArgs = do
pure $ [ "--enable-shared=no"
, "--host=" ++ targetPlatform -- GMP's host is our target
, "--build=" ++ buildPlatform ]
+ -- Disable FFT logic on wasm32, sacrifice
+ -- performance of multiplying very large operands
+ -- to save code size
+ <> [ "--disable-fft" | targetArch == "wasm32" ]
-- Disable GMP's alloca usage on wasm32, it may
-- cause stack overflow (#22602) due to the
-- rather small 64KB default stack size. See
--
GitLab