Importing rustc-1.45.2
Change-Id: Idd187dd729f3089d9529753a17db5fbb40bacdeb
diff --git a/src/llvm-project/llvm/lib/IR/InlineAsm.cpp b/src/llvm-project/llvm/lib/IR/InlineAsm.cpp
index 99da7ca..fd732f9 100644
--- a/src/llvm-project/llvm/lib/IR/InlineAsm.cpp
+++ b/src/llvm-project/llvm/lib/IR/InlineAsm.cpp
@@ -181,6 +181,16 @@
// FIXME: For now assuming these are 2-character constraints.
pCodes->push_back(StringRef(I+1, 2));
I += 3;
+ } else if (*I == '@') {
+ // Multi-letter constraint
+ ++I;
+ unsigned char C = static_cast<unsigned char>(*I);
+ assert(isdigit(C) && "Expected a digit!");
+ int N = C - '0';
+ assert(N > 0 && "Found a zero letter constraint!");
+ ++I;
+ pCodes->push_back(StringRef(I, N));
+ I += N;
} else {
// Single letter constraint.
pCodes->push_back(StringRef(I, 1));
