[Bug inline-asm/15228] [3.3/3.4/3.5 Regression] useless copies of floating point operands

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-30 15:57 -------
Note before 3.3 and after 2.95.3, the following sequence was used to copy the FP:
        subl    $12, %esp
        movl    16(%esp), %edx
        movl    20(%esp), %ecx
        movl    %edx, (%esp)
        movl    %ecx, 4(%esp)

Confirmed as a regression.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |pessimizes-code
      Known to fail|                            |3.0.4 3.2.3 3.3.3 3.4.0
                   |                            |3.5.0
      Known to work|                            |2.95.3
   Last reconfirmed|0000-00-00 00:00:00         |2004-04-30 15:57:08
               date|                            |
            Summary|useless copies of floating  |[3.3/3.4/3.5 Regression]
                   |point operands              |useless copies of floating
                   |                            |point operands
   Target Milestone|---                         |3.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15228