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Don't try to custom-lower 64-bit add-with-overflow and friends on x86-32; the

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x86 backend currently doesn't know how to handle them.

This doesn't really fix anything because LegalizeTypes doesn't know how to
handle them either.  We do get a better error message, though.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105305 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman 2010-06-02 00:27:18 +00:00
parent b2c2a972b0
commit a993f0a45f
1 changed files with 7 additions and 5 deletions
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12
lib/Target/X86/X86ISelLowering.cpp
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@ -976,15 +976,17 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
// Add/Sub/Mul with overflow operations are custom lowered.
setOperationAction(ISD::SADDO, MVT::i32, Custom);
setOperationAction(ISD::SADDO, MVT::i64, Custom);
setOperationAction(ISD::UADDO, MVT::i32, Custom);
setOperationAction(ISD::UADDO, MVT::i64, Custom);
setOperationAction(ISD::SSUBO, MVT::i32, Custom);
setOperationAction(ISD::SSUBO, MVT::i64, Custom);
setOperationAction(ISD::USUBO, MVT::i32, Custom);
setOperationAction(ISD::USUBO, MVT::i64, Custom);
setOperationAction(ISD::SMULO, MVT::i32, Custom);
setOperationAction(ISD::SMULO, MVT::i64, Custom);
if (Subtarget->is64Bit()) {
setOperationAction(ISD::SADDO, MVT::i64, Custom);
setOperationAction(ISD::UADDO, MVT::i64, Custom);
setOperationAction(ISD::SSUBO, MVT::i64, Custom);
setOperationAction(ISD::USUBO, MVT::i64, Custom);
setOperationAction(ISD::SMULO, MVT::i64, Custom);
}
if (!Subtarget->is64Bit()) {
// These libcalls are not available in 32-bit.