r275240 - in /trunk/gcc/go/gofrontend: MERGE wb.cc

[ian@gcc.gnu.org]

Author: ian
Date: Sat Aug 31 03:07:48 2019
New Revision: 275240

URL: https://gcc.gnu.org/viewcvs?rev=275240&root=gcc&view=rev
Log:
    compiler: check for notinheap struct at each struct field
    
    When generating write barriers, we were only checking for a notinheap
    struct at the outermost struct.  That mishandled the case of setting a
    pointer to a notinheap struct as a field of another struct that is not
    notinheap.  This caused an invalid write barrier error when building
    the 1.13 version of the runtime.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/192279

Modified:
    trunk/gcc/go/gofrontend/MERGE
    trunk/gcc/go/gofrontend/wb.cc