Displaying 2 results from an estimated 2 matches for "indirectbranch".
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2014 Jul 17
2
[LLVMdev] LLVM Code Generation on flattened IR code
Hello,
I made two flattening transformation filters, one use a switch instruction for the dispatcher, and the other an indirectbranch instruction. Both work well but llc is very time consuming in the second case : 10 minutes for a 500 basic block function, while it takes 10 seconds for the switchcase implementation . The instrumentation of llc shows that most of the time is passed in the Machine Block Frequency Analysis pass
I...
2014 Jul 21
2
[LLVMdev] LLVM Code Generation on flattened IR code
...uc.edu
Envoyé: Vendredi 18 Juillet 2014 09:18:41
Objet: Re: [LLVMdev] LLVM Code Generation on flattened IR code
On Jul 17, 2014, at 11:41 AM, charlessl at free.fr wrote:
Hello,
I made two flattening transformation filters, one use a switch instruction for the dispatcher, and the other an indirectbranch instruction. Both work well but llc is very time consuming in the second case : 10 minutes for a 500 basic block function, while it takes 10 seconds for the switchcase implementation . The instrumentation of llc shows that most of the time is passed in the Machine Block Frequency Analysis pass
I...