if an instr lacks a pattern, assume it has side effects (unless never has s-e is true).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45823 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/InstrInfoEmitter.cpp b/utils/TableGen/InstrInfoEmitter.cpp
index 7f25f3c..bcb8be6 100644
--- a/utils/TableGen/InstrInfoEmitter.cpp
+++ b/utils/TableGen/InstrInfoEmitter.cpp
@@ -154,7 +154,10 @@
void Analyze(Record *InstRecord) {
const TreePattern *Pattern = CDP.getInstruction(InstRecord).getPattern();
- if (Pattern == 0) return; // No pattern.
+ if (Pattern == 0) {
+ HasSideEffects = 1;
+ return; // No pattern.
+ }
// FIXME: Assume only the first tree is the pattern. The others are clobber
// nodes.