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Re: [Qemu-devel] [PATCH 0/4] arm: Avoid shifting left into sign bit
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH 0/4] arm: Avoid shifting left into sign bit |
Date: |
Mon, 10 Mar 2014 14:27:44 +0000 |
On 21 February 2014 13:06, Peter Maydell <address@hidden> wrote:
> Four simple patches which correct situations where we shift left
> into the sign bit of a signed integer type, which is undefined
> behaviour in C. These are by no means the only examples (even
> restricted to ARM board code; try "grep '1 << 31'"), but I'm
> vaguely aiming for "get 'make check' to not emit any clang
> -fsanitize=undefined warnings".
>
> Peter Maydell (4):
> pxa2xx: Don't shift into sign bit
> hw/arm/omap1.c: Avoid shifting left into sign bit
> hw/ssi/xilinx_spips.c: Avoid shifting left into sign bit
> hw/arm/musicpal: Avoid shifting left into sign bit
Applying these to target-arm.next; no review but they're
pretty trivial.
thanks
-- PMM
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