Date: Sun, 12 May 2019 07:50:24 +0000 From: bugzilla-noreply@freebsd.org To: toolchain@FreeBSD.org Subject: [Bug 216563] lang/gcc5: lang/gcc: stack alignment insufficient on i386 for SSE2 code. Message-ID: <bug-216563-29464-k8YPQOme6k@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-216563-29464@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216563 --- Comment #2 from Matthias Andree <mandree@FreeBSD.org> --- Wow. The original bug reports are 10 years old. You could've thought this has been fixed long since. The interesting part is that the affected code line per se deals with an array of double values, so that should be happy with 4-byte aligned stacks, but some part of the code employs SSE2 code to initialize the array and that copy-initial-values-code requires 16-byte alignment. Something in the compiler is inconsistent. Either it needs to figure it can't rely on the alignment of the stack - then it cannot use SSE2 instructions, or, if it wants to use SSE2 instructions, it needs to waste 4...12 bytes but make realignment automatic. -- You are receiving this mail because: You are the assignee for the bug.home | help
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