llvm-project.git/llvm/test/CodeGen/SystemZ/setcc-04.ll, branch users/nico/python-2 Unnamed repository; edit this file 'description' to name the repository. [SystemZ] Rework IPM sequence generation 2018-01-19T20:52:04+00:00 Ulrich Weigand ulrich.weigand@de.ibm.com 2018-01-19T20:52:04+00:00 849a59fd4b15967672f94fe034a0b152833b6320 The SystemZ back-end uses a sequence of IPM followed by arithmetic operations to implement the SETCC primitive. This is currently done early during SelectionDAG. This patch moves generating those sequences to much later in SelectionDAG (during PreprocessISelDAG). This doesn't change much in generated code by itself, but it allows further enhancements that will be checked-in as follow-on commits. llvm-svn: 322987 
The SystemZ back-end uses a sequence of IPM followed by arithmetic
operations to implement the SETCC primitive.  This is currently done
early during SelectionDAG.  This patch moves generating those sequences
to much later in SelectionDAG (during PreprocessISelDAG).

This doesn't change much in generated code by itself, but it allows
further enhancements that will be checked-in as follow-on commits.

llvm-svn: 322987