Red Hat Bugzilla – Bug 107936
Mesa assembler code uses ENTER/LEAVE instructions for a performance hit.
Last modified: 2007-04-18 12:58:45 EDT
Mesa assembler code uses ENTER/LEAVE instructions which I noticed while
reviewing debugger output. This incurs severe performance loss due to these
instructions being implemented in microcode according to Intel docs.
This should be optimized to remove ENTER/LEAVE and save/restore registers