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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/65078] [5.0 Regression] 4.9 and 5.0 generate more spill-fill in comparison with 4.8.2
Date: Mon, 16 Feb 2015 14:44:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65078

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Seems this has started with r216247, and indeed, compiling the testcase with
-std=gnu89 even with latest trunk results in those 25 %esp references, while
using -std=gnu11 even with r190000 results in 69 %esp references.