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authorLaurențiu Nicola <lnicola@dend.ro>2024-10-08 14:25:39 +0300
committerLaurențiu Nicola <lnicola@dend.ro>2024-10-08 14:25:39 +0300
commit4316afffd9390bdac1d3bd5e5398c65d6e9bb150 (patch)
tree9d5b39941405bec4b7c4571606df8b88850325e9 /compiler/rustc_data_structures/src/stack.rs
parent537fb8d1bb2405b118898c663bc076815a1762c7 (diff)
parentcf24c73141a77db730f4b7fda69dcd7e8b113b51 (diff)
downloadrust-4316afffd9390bdac1d3bd5e5398c65d6e9bb150.tar.gz
rust-4316afffd9390bdac1d3bd5e5398c65d6e9bb150.zip
Merge from rust-lang/rust
Diffstat (limited to 'compiler/rustc_data_structures/src/stack.rs')
-rw-r--r--compiler/rustc_data_structures/src/stack.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_data_structures/src/stack.rs b/compiler/rustc_data_structures/src/stack.rs
index 7ff1339c5ab..3d6d0003483 100644
--- a/compiler/rustc_data_structures/src/stack.rs
+++ b/compiler/rustc_data_structures/src/stack.rs
@@ -5,7 +5,11 @@ const RED_ZONE: usize = 100 * 1024; // 100k
 
 // 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