1. 30 Jun, 2016 1 commit
    • Drew's avatar
      Add actual effects to the configurations · 8f797026
      Drew authored
      This extends #104 by adding actual effects to the configurations rather than have them be no-ops.
      
      Effects include:
      
      * debug instrumentation (new in this PR), for emitting `-g` (see #73 for an obvious extension)
      * optimization control / WMO control
      * compression level (faster debug atbins)
      * test instrumentation (`-enable-testing`)
      * `#if ATBUILD_RELEASE` etc. from Swift code
      
      There are some deprecations associated with this PR:
      
      * `whole-module-optimization` atllbuild option is now deprecated; use `--configuration release` instead.  There currently is no plan to control these separately, use `--configuration plain` + `:compileOptions ["-O"]` to get optimization without WMO.  Or open a bug to complain about this change.
      * `magic` atllbuild option is now deprecated; to opt out of magic use `--configuration none` instead.
      
      Doc PR to follow.
      
      In addition, CI is now updated to produce release (optimized) builds for atbuild, which significantly optimizes atbuild performance.
      8f797026
  2. 18 May, 2016 1 commit
    • Drew's avatar
      Fix WMO · 1aba8e49
      Drew authored
      We previously used a (pretty bad) hack for WMO.  This resulted in issues like #92.
      
      Upstream now has proper support for WMO (see generally, https://github.com/apple/swift-llbuild/pull/28, https://bugs.swift.org/browse/SR-881).
      
      We now use the upstream feature to handle this case.  We also add -num-threads support, which upstream recently added.
      
      Note that our implementation now only works for swift-DEVELOPMENT-SNAPSHOT-2016-05-09-a and above.
      
      Resolve #92
      1aba8e49
  3. 04 Mar, 2016 1 commit
    • Drew's avatar
      Support whole-module-optimization · eadeb144
      Drew authored
      Due to SR-881, whole-module-optimization is more complicated than simply
      adding it to compile options.
      
      As a workaround, we compile twice.
      eadeb144