On Jul 11, 2014, at 12:04 PM, Brian Anderson <bander...@mozilla.com> wrote:
> Rust does have 2MB stacks by default. These giant numbers are surprising. These giant numbers aren’t too surprising, since LLVM isn’t that great at optimizing stack space. Is Rust inserting the lifetime.start and lifetime.end markers? http://llvm.org/docs/LangRef.html#llvm-lifetime-start-intrinsic Use of lifetime markers is essential if you have a lot of distinct allocas with distinct scopes, as then LLVM can reuse the stack space. The inliner tries to insert them automatically for any allocas in the function being inlined, but maybe Servo has large function bodies that aren’t getting this benefit from the inliner. Cameron _______________________________________________ dev-servo mailing list dev-servo@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-servo
