[llvm-commits] [llvm] r156658 - /llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp

[Eli Friedman]

On Fri, May 11, 2012 at 4:14 PM, Chad Rosier <mcrosier at apple.com> wrote:
> Or rather, unoptimized compiles don't use the expect intrinsic.

I don't think we can just ignore it, though... the result of this
intrinsic generally does get used.

-Eli

>
>  Chad
>
> On May 11, 2012, at 4:10 PM, Chad Rosier wrote:
>
>> Author: mcrosier
>> Date: Fri May 11 18:10:58 2012
>> New Revision: 156658
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=156658&view=rev
>> Log:
>> [fast-isel] Fast-isel doesn't use the expect intrinsic.
>>
>> Modified:
>>    llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp
>>
>> Modified: llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp?rev=156658&r1=156657&r2=156658&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp (original)
>> +++ llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp Fri May 11 18:10:58 2012
>> @@ -570,9 +570,10 @@
>>   // Handle selected intrinsic function calls.
>>   switch (F->getIntrinsicID()) {
>>   default: break;
>> -    // At -O0 we don't care about the lifetime intrinsics.
>> +    // At -O0 we don't care about the lifetime or expect intrinsics.
>>   case Intrinsic::lifetime_start:
>>   case Intrinsic::lifetime_end:
>> +  case Intrinsic::expect:
>>     return true;
>>   case Intrinsic::dbg_declare: {
>>     const DbgDeclareInst *DI = cast<DbgDeclareInst>(Call);
>>
>>
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