[Bug target/28946] [4.0/4.1/4.2 Regression] assembler shifts set the flag ZF, no need to re-test to zero

[hjl at lucon dot org]

------- Comment #10 from hjl at lucon dot org  2006-09-06 14:26 -------
The proposed patch will slow down Core and Core 2 by 70-100% in some testcases
due to partial flag register stall. I have a followup patch to implement
TARGET_PARTIAL_FLAG_REG_STALL.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28946