diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/CodeGen/ISDOpcodes.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/llvm/CodeGen/ISDOpcodes.h b/include/llvm/CodeGen/ISDOpcodes.h index eb922e9..ba554d3 100644 --- a/include/llvm/CodeGen/ISDOpcodes.h +++ b/include/llvm/CodeGen/ISDOpcodes.h @@ -95,8 +95,11 @@ namespace ISD { // execution to HANDLER. Many platform-related details also :) EH_RETURN, - // TargetConstant* - Like Constant*, but the DAG does not do any folding or - // simplification of the constant. + // TargetConstant* - Like Constant*, but the DAG does not do any folding, + // simplification, or lowering of the constant. They are used for constants + // which are known to fit in the immediate fields of their users, or for + // carrying magic numbers which are not values which need to be materialized + // in registers. TargetConstant, TargetConstantFP, |