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add a new TGError class and use it to propagate location info with

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errors when thrown.  This gets us nice errors like this from tblgen:

CMOVL32rr: 	(set GR32:i32:$dst, (X86cmov GR32:$src1, GR32:$src2))
/Users/sabre/llvm/Debug/bin/tblgen: error:
Included from X86.td:116:
Parsing X86InstrInfo.td:922: In CMOVL32rr: X86cmov node requires exactly 4 operands!
def CMOVL32rr : I<0x4C, MRMSrcReg,       // if <s, GR32 = GR32
^

instead of just:

CMOVL32rr: 	(set GR32:i32:$dst, (X86cmov GR32:$src1, GR32:$src2))
/Users/sabre/llvm/Debug/bin/tblgen: In CMOVL32rr: X86cmov node requires exactly 4 operands!

This is all I plan to do with this, but it should be easy enough to improve if anyone 
cares (e.g. keeping more loc info in "dag" expr records in tblgen.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66898 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-03-13 16:25:21 +00:00
parent 7b9ffe4a6d
commit a14b1ded69
3 changed files with 26 additions and 20 deletions
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2
utils/TableGen/CodeGenDAGPatterns.cpp
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@ -1113,7 +1113,7 @@ TreePattern::TreePattern(Record *TheRec, TreePatternNode *Pat, bool isInput,
void TreePattern::error(const std::string &Msg) const {
dump();
throw "In " + TheRecord->getName() + ": " + Msg;
throw TGError(TheRecord->getLoc(), "In " + TheRecord->getName() + ": " + Msg);
}
TreePatternNode *TreePattern::ParseTreePattern(DagInit *Dag) {