[Bug target/19653] x87 reg allocated for constants for -mfpmath=sse

[bonzini at gcc dot gnu dot org]

------- Additional Comments From bonzini at gcc dot gnu dot org  2005-08-22 22:03 -------
SPEC results for i686-pc-linux-gnu follow.  The only significant regression is
in galgel, overall it's about 1% better for SPECint and 2% better for SPECfp.

Note that crafty improves a lot because of Dale's patch.

   164.gzip          1400     151         925*     1400     152         921*
   175.vpr           1400     163         859*     1400     162         862*
   176.gcc           1100      70.9      1552*     1100      71.1      1548*
   181.mcf           1800     176        1021*     1800     176        1020*
   186.crafty        1000     107         938*     1000     102         984*
   197.parser        1800     205         877*     1800     205         876*
   252.eon           1300     149         873*     1300     141         919*
   253.perlbmk       1800     126        1434*     1800     123        1464*
   254.gap           1100      82.1      1340*     1100      80.8      1361*
   255.vortex        1900     134        1415*     1900     134        1413*
   256.bzip2         1500     161         930*     1500     161         933*
   300.twolf         3000     235        1276*     3000     234        1281*
   SPECint_base2000                      1093
   SPECint2000                                                         1106

   168.wupwise       1600     174         920*     1600     173         926*
   171.swim          3100     180        1721*     3100     181        1713*
   172.mgrid         1800     257         700*     1800     257         701*
   173.applu         2100     200        1049*     2100     199        1056*
   177.mesa          1400     125        1116*     1400     123        1138*
   178.galgel        2900     305         952*     2900     312         930*
   179.art           2600     216        1206*     2600     212        1229*
   183.equake        1300      80.5      1615*     1300      76.1      1708*
   187.facerec       1900     286         664*     1900     286         664*
   188.ammp          2200     305         721*     2200     298         739*
   189.lucas         2000     225         889*     2000     203         983*
   191.fma3d         2100     397         530*     2100     373         563*
   200.sixtrack      1100     188         587*     1100     188         586*
   301.apsi          2600     262         991*     2600     261         996*
   SPECfp_base2000                        921
   SPECfp2000                                                           939

                                    NOTES
                                    -----
     Base flags: -O2 -msse -msse2 -mfpmath=sse
     Peak flags: -O2 -msse -msse2 -mfpmath=sse


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19653