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[Bug target/84128] i686: Stack spilling in -fstack-clash-protection prologue neglects %esp change
- From: "law at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 30 Jan 2018 16:18:48 +0000
- Subject: [Bug target/84128] i686: Stack spilling in -fstack-clash-protection prologue neglects %esp change
- Auto-submitted: auto-generated
- References: <bug-84128-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84128
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-01-30
Ever confirmed|0 |1
--- Comment #2 from Jeffrey A. Law <law at redhat dot com> ---
I see what's happening.
It's specific to cases where a function needs a probing loop, uses all the
argument passing registers, but no callee saved registers.
At first glance it looks like both stack-clash and stack-check are affected.
No surprise since they have the same basic structure for handling large frames.