Don't try to custom-lower 64-bit add-with-overflow and friends on x86-32; the
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
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 0fd87bd..bb80ace 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -976,15 +976,17 @@
// 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.