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Re: [PATCH] MPX: fix PR middle-end/79753
On 03/14/2017 11:27 PM, Ilya Enkovich wrote:
2017-03-10 16:15 GMT+03:00 Martin Liška <mliska@suse.cz>:
Hello.
Currently, __builtin_ia32_bndret is used for all functions that have non-void
return type. I think the right fix is to return bounds just for a bounded type.
Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
Ready to be installed?
Martin
Hi,
The fix makes sense and allows you to pass the test but it seems like we
still have the issue in inlining which can result in bndret call with wrong arg.
Hi.
The test I added does probably what you mean: a return value of integer is casted
to a pointer type. Or?
Do you avoid all such cases by this fix? Can we still have similar problem
if cast function with integer return type to a function with pointer return type
and the inline the call (not sure if we can inline such calls)?
I think this fix still should go to trunk anyway.
Good, may I consider this as patch approval?
Thanks,
Martin
Thanks,
Ilya