| commit | 3d60ff7fa8c7d8b3db40912cd338928868ad6a11 | [log] [tgz] |
|---|---|---|
| author | Vedant Kumar <vsk@apple.com> | Wed Nov 14 19:53:41 2018 +0000 |
| committer | Vedant Kumar <vsk@apple.com> | Wed Nov 14 19:53:41 2018 +0000 |
| tree | 8243f434784786cf533563209c168b6868991ca0 | |
| parent | b78df5ef8e969928840093c3cb52b7c71f3081c8 [diff] |
Mark @llvm.trap cold A call to @llvm.trap can be expected to be cold (i.e. unlikely to be reached in a normal program execution). Outlining paths which unconditionally trap is an important memory saving. As the hot/cold splitting pass (imho) should not treat all noreturn calls as cold, explicitly mark @llvm.trap cold so that it can be outlined. Split out of https://reviews.llvm.org/D54244. Differential Revision: https://reviews.llvm.org/D54329 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346885 91177308-0d34-0410-b5e6-96231b3b80d8