[Bug target/60520] stack adjustment are not merged anymore

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60520

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
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  Attachment #32353|0                           |1
        is obsolete|                            |

--- Comment #12 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 32399
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32399&action=edit
An updated patch

This patch passed regression test on Linux/x86-64
and Linux/x86.  I am not sure if this patch is x86
specific.  If it is, we can turn it into a target hook.