[Bug rtl-optimization/23650] Scheduler does not handle zero_extract correctly

[Erwin dot Unruh at fujitsu-siemens dot com]

------- Additional Comments From Erwin dot Unruh at fujitsu-siemens dot com  2005-09-19 12:25 -------
Created an attachment (id=9773)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9773&action=view)
testcase supplement

Here is some additional coding, which calls the function given in the bug
report. The exit code is 1 in case of error, zero otherwise.
I was able to verify my original analysis with this test.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23650