search for: emitputs

Displaying 3 results from an estimated 3 matches for "emitputs".

[LLVMdev] Which pass converts call printf to puts?
2012 Jun 18
0
[LLVMdev] Which pass converts call printf to puts?
...information. I got the pass in SimplifyLibCalls.cpp. > > I looked at the code, but am still a little confused about the IR > instruction replacement model. Use the following specific optimization > as example, it looks to me that even if a new call instruction (puts) is > created in EmitPutS, but the returned one is still the original one > (CI). So I am very curious about how the call instruction is replaced here. > > // printf("%s\n", str) --> puts(str) > if (FormatStr == "%s\n" && CI->getNumArgOperands() > 1 && >...
[LLVMdev] Which pass converts call printf to puts?
2012 Jun 17
5
[LLVMdev] Which pass converts call printf to puts?
I found that LLVM optimized the IR by replacing printf with puts. I wondered which pass did this optimization? And is it common that puts is faster (and some other metric) than printf? -- Thanks Thomson -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120617/08aa6c45/attachment.html>
[LLVMdev] Which pass converts call printf to puts?
2012 Jun 18
2
[LLVMdev] Which pass converts call printf to puts?
...ass in SimplifyLibCalls.cpp. > > > > I looked at the code, but am still a little confused about the IR > > instruction replacement model. Use the following specific optimization > > as example, it looks to me that even if a new call instruction (puts) is > > created in EmitPutS, but the returned one is still the original one > > (CI). So I am very curious about how the call instruction is replaced > here. > > > > // printf("%s\n", str) --> puts(str) > > if (FormatStr == "%s\n" && CI->getNumArgOperands()...