Displaying 4 results from an estimated 4 matches for "mulxss".
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2008 Sep 12
3
[LLVMdev] Difficulty with reusing DAG nodes.
I'm trying to implement *MUL_LOHI for my processor.
My processor has mulxss (e.g.) that gives the 32 high bits of a 64 bit
multiply.
I tried this in ios2ISelDAGToDAG.cpp:
/// Mul/Div with two results
case ISD::SMUL_LOHI:
case ISD::UMUL_LOHI: {
SDValue Op1 = Node->getOperand(0);
SDValue Op2 = Node->getOperand(1);
AddToISelQueue(Op1...
2008 Sep 12
0
[LLVMdev] Difficulty with reusing DAG nodes.
On Thu, Sep 11, 2008 at 6:09 PM, Richard Pennington <rich at pennware.com> wrote:
> I'm trying to implement *MUL_LOHI for my processor.
>
> My processor has mulxss (e.g.) that gives the 32 high bits of a 64 bit
> multiply.
I haven't looked at the rest of the email carefully, but why aren't
you just implementing MULHU and MULHS? There's no point to
implementing the *MUL_LOHI variants if the processor doesn't have
them.
-Eli
2008 Sep 11
0
[LLVMdev] Tail-calling
On Thu, Sep 11, 2008 at 4:31 PM, Arnold Schwaighofer
<arnold.schwaighofer at gmail.com> wrote:
> Tail calls through function pointers should work.If not please send a testcase.
>
> I just added the two examples from the bug (1392) that calls for true
> tail call support. They work on my machine (-tailcallopt needs to be
> enabled) ;)
>
> That would be commit 56127.
>
2008 Sep 11
3
[LLVMdev] Tail-calling
Tail calls through function pointers should work.If not please send a testcase.
I just added the two examples from the bug (1392) that calls for true
tail call support. They work on my machine (-tailcallopt needs to be
enabled) ;)
That would be commit 56127.
regards
On Thu, Sep 11, 2008 at 11:21 PM, Evan Cheng <evan.cheng at apple.com> wrote:
> Arnold implemented tail call. We