[LLVMdev] sccp pass with opt
Niko Zarzani
koni10 at hotmail.it
Tue Apr 16 12:37:48 PDT 2013
Hi all,
I am trying to see how single llvm optimizations work by running them one by one with opt and looking how the IR changes.Since I was interested in seeing how constant propagation was working I tried to run opt on the Sparse Conditional Constant Propagation, however by passing as argument -S -sccp -die it does not change anything in the output IR code. I attached the file with the source code I used, I think that the x value in that example should be propagated in the mul instruction. What am I missing?
Thank you in advance,
Niko
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130416/a91407c3/attachment.html>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: code.c
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130416/a91407c3/attachment.c>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: code.s
Type: text/x-asm
Size: 1441 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130416/a91407c3/attachment.bin>
More information about the llvm-dev
mailing list