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Bug 80738 - Internal compiler error in expand_assignment, at expr.c:3450
Internal compiler error in expand_assignment, at expr.c:3450
Product: Red Hat Linux
Classification: Retired
Component: gcc (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Jakub Jelinek
Brian Brock
Depends On:
  Show dependency treegraph
Reported: 2002-12-30 12:47 EST by Alexander Viro
Modified: 2007-04-18 12:49 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2004-10-05 19:42:19 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Alexander Viro 2002-12-30 12:47:20 EST
Description of problem: on the testcase below gcc gives the above

cat >a.c <<'EOF'
struct foo {char x, y, z[2];};
struct foo f();
void bar(int baz)
        f().z[baz] = 1;
gcc -S -ansi -freg-struct-return -Wall a.c

run the above and watch
a.c: In function `bar':
a.c:5: Internal compiler error in expand_assignment, at expr.c:3450
Please submit a full bug report.
See <URL:http://bugzilla.redhat.com/bugzilla/> for instructions.
gcc -v output: gcc version 2.96 20000731 (Red Hat Linux 7.2 2.96-112.7.2)
Comment 1 Richard Henderson 2004-10-03 07:21:14 EDT
Indeed, the problem persists through to current mainline.
It appears that -freg-struct-return Just Doesn't Work.
Comment 2 Vladimir Makarov 2004-10-04 17:53:11 EDT
gcc 2.96 is too old now.  Its release cycle was finished long ago. 
Therefore I am closing the case.  If it is still important, we could
reopen it.

Comment 3 Richard Henderson 2004-10-04 18:25:45 EDT
Um, Vlad, my comment from just yesterday indicates that the problem
is still present in gcc 4.0.

Whether or not the proper resolution of this bug is to remove the
code for -freg-struct-return, since I suspect that it hasn't worked
in a very long time, is another issue.
Comment 4 Richard Henderson 2004-10-05 19:42:19 EDT
Pushed upstream to

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