RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00
Code Issues Projects Releases Wiki Activity

Allow the commuted form of tied-operand constraints in tablegen ("$dst = $src",

Browse Source 
rather than "$src = $dst").

llvm-svn: 166382
This commit is contained in:
Lang Hames 2012-10-20 22:44:13 +00:00
parent 2ee8edf34a
commit 784ac6493a
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
utils/TableGen/CodeGenInstruction.cpp
View File

@ -233,11 +233,12 @@ static void ParseConstraint(const std::string &CStr, CGIOperandList &Ops) {
if (wpos == std::string::npos)
throw "Illegal format for tied-to constraint: '" + CStr + "'";
std::pair<unsigned,unsigned> SrcOp =
Ops.ParseOperandName(Name.substr(wpos), false);
if (SrcOp > DestOp)
throw "Illegal tied-to operand constraint '" + CStr + "'";
std::string SrcOpName = Name.substr(wpos);
std::pair<unsigned,unsigned> SrcOp = Ops.ParseOperandName(SrcOpName, false);
if (SrcOp > DestOp) {
std::swap(SrcOp, DestOp);
std::swap(SrcOpName, DestOpName);
}
unsigned FlatOpNo = Ops.getFlattenedOperandNumber(SrcOp);