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[Bug default/32213] New: Integral union fields are not being written


From: jose.marchesi at oracle dot com
Subject: [Bug default/32213] New: Integral union fields are not being written
Date: Thu, 26 Sep 2024 08:55:01 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=32213

            Bug ID: 32213
           Summary: Integral union fields are not being written
           Product: poke
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: default
          Assignee: unassigned at sourceware dot org
          Reporter: jose.marchesi at oracle dot com
                CC: poke-devel at gnu dot org
  Target Milestone: ---

type Foo = union int<32> { int a; };
  type Bar = union int<32> { Foo i; };
  var b = Bar[2] @ 0x10#B;
  b[1].i.a = 3;

The above write doesn't materialize in the IO space if Bar is integral. The
problem is that the mapper uses field_extractor for struct fields in integral
structs, and that results in non-mapped sub-structs!

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