[Bug target/16482] [4.0 Regression] gcc.c-torture/unsorted/SFset.c fails with "-O2 -m4"

[naveen dot sharma at noida dot hcltech dot com]

------- Additional Comments From naveen dot sharma at noida dot hcltech dot com  2004-10-18 12:03 -------
The patch submitted by Kaz looks OK to me. 
There are some heuristics in sh.c that were written to disable 
ready queue reordering when R0 is under pressure. But (mem (pseudo) (pseudo)) 
is an indirect implicit reference to R0.
I am wondering why this was missed? Was R0 a fixed_reg sometime during pre-3.3 
releases, so as to generate (mem (r0) (pesudo)) instead of (mem (pseudo) 
(pseudo) form?

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                 CC|                            |naveens at noida dot hcltech
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16482