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Fix case where identical cases were not detected across case #0, because

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instructions not handled would have a case value of #0, throwing things off.
This marginally shrinks the X86 asmprinter, but shrinks the sparc asmwriter
by 25 lines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29187 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-07-18 19:27:30 +00:00
parent 31e773147b
commit 195bb4a7b0
1 changed files with 3 additions and 2 deletions
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5
utils/TableGen/AsmWriterEmitter.cpp
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@ -332,7 +332,7 @@ void AsmWriterEmitter::
FindUniqueOperandCommands(std::vector<std::string> &UniqueOperandCommands,
std::vector<unsigned> &InstIdxs,
std::vector<unsigned> &InstOpsUsed) const {
InstIdxs.assign(NumberedInstructions.size(), 0);
InstIdxs.assign(NumberedInstructions.size(), ~0U);
// This vector parallels UniqueOperandCommands, keeping track of which
// instructions each case are used for. It is a comma separated string of
@ -551,7 +551,8 @@ void AsmWriterEmitter::run(std::ostream &O) {
// Otherwise, we can include this in the initial lookup table. Add it in.
BitsLeft -= NumBits;
for (unsigned i = 0, e = InstIdxs.size(); i != e; ++i)
OpcodeInfo[i] |= InstIdxs[i] << (BitsLeft+AsmStrBits);
if (InstIdxs[i] != ~0U)
OpcodeInfo[i] |= InstIdxs[i] << (BitsLeft+AsmStrBits);
// Remove the info about this operand.
for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {