[Valgrind-developers] [PATCH][VEX] Remove limit on strd's negative immediates

[Michael D. <mda...@qn...>]

Hello,

It seems newer versions of libgcc[0] have started using assembly like this:

strd ip, lr, [sp, #-16]!

Since VEX only checks for #-8, this is causing lots of complaints about
invalid writes below the stack pointer.

Attached is a patch to remove the check all together, allowing any negative
immediates without generating a lot of noise.

[0] https://github.com/gcc-mirror/gcc/blob/7aea4e7cdcd40d7bd47c64e76325a62191887d1b/libgcc/config/arm/bpabi.S#L151

Thanks,

Mike
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