From 9be9141730ce8f78d5ffa9f72541f2eca13ab1d1 Mon Sep 17 00:00:00 2001 From: Henry Jiang Date: Tue, 1 Oct 2024 16:06:24 -0400 Subject: [PATCH] increase stack size for aix --- compiler/rustc_data_structures/src/stack.rs | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/compiler/rustc_data_structures/src/stack.rs b/compiler/rustc_data_structures/src/stack.rs index 7ff1339c5ab..72add175091 100644 --- a/compiler/rustc_data_structures/src/stack.rs +++ b/compiler/rustc_data_structures/src/stack.rs @@ -5,7 +5,11 @@ // Only the first stack that is pushed, grows exponentially (2^n * STACK_PER_RECURSION) from then // on. This flag has performance relevant characteristics. Don't set it too high. +#[cfg(not(target_os="aix"))] const STACK_PER_RECURSION: usize = 1024 * 1024; // 1MB +// LLVM for AIX doesn't feature TCO, increase recursion size for workaround. +#[cfg(target_os="aix")] +const STACK_PER_RECURSION: usize = 16 * 1024 * 1024; // 16MB /// Grows the stack on demand to prevent stack overflow. Call this in strategic locations /// to "break up" recursive calls. E.g. almost any call to `visit_expr` or equivalent can benefit