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Make sure TableGen exits with an error code after printing errors.

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This makes it possible to report multiple errors in one invocation.
There are already calls to PrintError in CodeGenDAGPatterns.cpp which
previously would not cause TableGen to fail.

<rdar://problem/13463339>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177573 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2013-03-20 20:43:11 +00:00
parent 6115ed0e43
commit f8ea5a5a27
3 changed files with 12 additions and 2 deletions
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6
lib/TableGen/Error.cpp
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@ -20,9 +20,15 @@
namespace llvm {
SourceMgr SrcMgr;
unsigned ErrorsPrinted = 0;
static void PrintMessage(ArrayRef<SMLoc> Loc, SourceMgr::DiagKind Kind,
const Twine &Msg) {
// Count the total number of errors printed.
// This is used to exit with an error code if there were any errors.
if (Kind == SourceMgr::DK_Error)
++ErrorsPrinted;
SMLoc NullLoc;
if (Loc.empty())
Loc = NullLoc;