search for: xiaotong

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2004 Jun 15
2
About function "unif_rand()"
...using function with c interface. What I found is only "unif_rand()", but its range is [0,1]. How can I create a uniform random variable by using a function with c interface. Who can tell me what function it is and how to use? I will appreciate for it very much. Thanks in advance! xiaotong wang
2007 Nov 08
0
[LLVMdev] Two labels around one instruction in Codegen
That would complicate instruction selection. Not worth it. Evan On Nov 8, 2007, at 1:10 AM, Duncan Sands wrote: >> Ok, so it turns out the labels do not have to be just before / after >> the divide. So we don't have to use the MVT::Flag hackery. However, >> the second label must be after the divide. I think the solution is to >> add a trapping version of DIV (and
2007 Nov 08
2
[LLVMdev] Two labels around one instruction in Codegen
> Ok, so it turns out the labels do not have to be just before / after > the divide. So we don't have to use the MVT::Flag hackery. However, > the second label must be after the divide. I think the solution is to > add a trapping version of DIV (and others) and the second label can > use its chain value as operand. How about a new "trapping" SDNode, which you
2007 Nov 09
2
[LLVMdev] Register allocation balancing issues
...ple, there is no centralized control unit. The closest work to this problem is probably an PLDI'04 paper, as well as, works on variable binding for High-Level Synthesis. Here is the reference to the PLDI paper: Balancing Register Allocation Across Threads for a Multithreaded Network Processor Xiaotong Zhuang and Santosh Pande PLDI'04 Another take (and quite not a longshot although probably Fernando -- thanks for the debugger, will try it -- has worked either alone or with NVK on the ILP formulation) is to write-up constraints for an ILP (integer linear programming) solution. I wouldn't...