Fix bad length argument to substr calls. Apparently I'm the first one to
attempt more than 2 constraints on an instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80169 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenInstruction.cpp b/utils/TableGen/CodeGenInstruction.cpp
index 4650b88..b7968a0 100644
--- a/utils/TableGen/CodeGenInstruction.cpp
+++ b/utils/TableGen/CodeGenInstruction.cpp
@@ -22,7 +22,7 @@
std::string::size_type pos = CStr.find_first_of('=');
assert(pos != std::string::npos && "Unrecognized constraint");
std::string::size_type start = CStr.find_first_not_of(" \t");
- std::string Name = CStr.substr(start, pos);
+ std::string Name = CStr.substr(start, pos - start);
// TIED_TO: $src1 = $dst
std::string::size_type wpos = Name.find_first_of(" \t");
@@ -70,7 +70,7 @@
if (eidx == std::string::npos)
eidx = CStr.length();
- ParseConstraint(CStr.substr(bidx, eidx), I);
+ ParseConstraint(CStr.substr(bidx, eidx - bidx), I);
bidx = CStr.find_first_not_of(delims, eidx);
}
}