| commit | f51190b6977ec1ae93be83fd109a3f99855bb653 | [log] [tgz] |
|---|---|---|
| author | Benjamin Kramer <benny.kra@googlemail.com> | Sun May 08 18:36:07 2011 +0000 |
| committer | Benjamin Kramer <benny.kra@googlemail.com> | Sun May 08 18:36:07 2011 +0000 |
| tree | 937cb7f0499c68d3bceba36bd5b1c4f98a775cf6 | |
| parent | 4eafe109459eb115f13f1d19c5ff3cb3678e8c7a [diff] |
X86: Add a bunch of peeps for add and sub of SETB. "b + ((a < b) ? 1 : 0)" compiles into cmpl %esi, %edi adcl $0, %esi instead of cmpl %esi, %edi sbbl %eax, %eax andl $1, %eax addl %esi, %eax This saves a register, a false dependency on %eax (Intel's CPUs still don't ignore it) and it's shorter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131070 91177308-0d34-0410-b5e6-96231b3b80d8