[Bug target/37364] [4.4 Regression] IRA generates inefficient code due to missing regmove pass

[Joey dot ye at intel dot com]

------- Comment #17 from Joey dot ye at intel dot com  2008-10-23 08:42 -------
CPU2006/454.calculix has about 10% regression with IRA + core2 + fpmath=sse on
Core2 ix86:
                 IRA    IRA_core2   NO_IRA_core2
454.calculix     1.00   0.90        1.01

Revision: trunk 140514

Options in detail:
IRA= -m32 -O2 -mssse3 -mfpmath=sse
IRA_core2= $IRA -mtune=core2
NO_IRA_core2= $IRA_core2 -fno-ira


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37364