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2014 Mar 06
4
[LLVMdev] RFC - Adding an optimization report facility?
On Thu, Mar 6, 2014 at 2:44 PM, Tobias Grosser <tobias at grosser.es> wrote: as others already pointed out, I committed the first piece of such an > infrastructure in LLVM commit 202474 and clang commit 202475. This is > mostly the backend and printing infrastructure. > Thanks, Tobias. I've browsed the two patches and I think they're going to be exactly what I need. IIUC, the patches add two new LLVM instructions remark and note. These are inserted in the IL by the passes and the compile...
2014 Mar 06
11
[LLVMdev] RFC - Adding an optimization report facility?
The context of this is performance analysis of generated code. My interest is to trace at a high-level the major decisions done by the various optimizers. For instance, when the inliner decides to inline foo into bar, or the loop unroller decides to unroll a loop N times, or the vectorizer decides to vectorize a loop body. Many of these details are usually available via -debug-only. However, this