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Diffstat (limited to 'llvm/utils/TableGen/CodeGenDAGPatterns.cpp')
-rw-r--r--llvm/utils/TableGen/CodeGenDAGPatterns.cpp10
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
index 7f9f88e..8e5bb77 100644
--- a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -1866,6 +1866,16 @@ TreePatternNode *TreePattern::ParseTreePattern(Init *TheInit, StringRef OpName){
return Res;
}
+ // ?:$name or just $name.
+ if (TheInit == UnsetInit::get()) {
+ if (OpName.empty())
+ error("'?' argument requires a name to match with operand list");
+ TreePatternNode *Res = new TreePatternNode(TheInit, 1);
+ Args.push_back(OpName);
+ Res->setName(OpName);
+ return Res;
+ }
+
if (IntInit *II = dyn_cast<IntInit>(TheInit)) {
if (!OpName.empty())
error("Constant int argument should not have a name!");