Heed guessInstructionProperties, and stop warning on redundant flags.
Emit TableGen errors if guessInstructionProperties is 0 and
instruction properties can't be inferred from patterns.
Allow explicit instruction properties even when they can be inferred.
This patch doesn't change the TableGen output. Redundant properties
are not yet verified because the tree has errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162516 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenInstruction.h b/utils/TableGen/CodeGenInstruction.h
index 7637a5b..f601a83 100644
--- a/utils/TableGen/CodeGenInstruction.h
+++ b/utils/TableGen/CodeGenInstruction.h
@@ -249,6 +249,14 @@
bool isCodeGenOnly;
bool isPseudo;
+ /// Are there any undefined flags?
+ bool hasUndefFlags() const {
+ return mayLoad_Unset || mayStore_Unset || hasSideEffects_Unset;
+ }
+
+ // The record used to infer instruction flags, or NULL if no flag values
+ // have been inferred.
+ Record *InferredFrom;
CodeGenInstruction(Record *R);