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Don't select binary instructions with illegal types.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55383 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2008-08-26 20:52:40 +00:00
parent a843b8d391
commit b71fea248f
1 changed files with 6 additions and 0 deletions
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6
lib/CodeGen/SelectionDAG/FastISel.cpp
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@ -30,6 +30,12 @@ bool FastISel::SelectBinaryOp(Instruction *I, ISD::NodeType ISDOpcode,
if (VT == MVT::Other || !VT.isSimple())
// Unhandled type. Halt "fast" selection and bail.
return false;
// We only handle legal types. For example, on x86-32 the instruction
// selector contains all of the 64-bit instructions from x86-64,
// under the assumption that i64 won't be used if the target doesn't
// support it.
if (!TLI.isTypeLegal(VT))
return false;
unsigned Op0 = ValueMap[I->getOperand(0)];
if (Op0 == 0)