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...eGen/MachineBasicBlock.h#L63>. >> With basic block sections, the cold blocks are assigned appropriate debug >> and call frame information and emitted as part of the .text.unlikely >> section. Unlike Propeller >> <https://lists.llvm.org/pipermail/llvm-dev/2019-September/135393.html>, >> which is presently the main user of the basic block sections feature, this >> pass does not require an additional round of profiling and uses existing >> instrumentation based FDO or CSFDO profile information. >> >> [image: Machine Function Splitter.png] &...

...ca21cf838840e9/llvm/include/llvm/CodeGen/MachineBasicBlock.h#L63>. With basic block sections, the cold blocks are assigned appropriate debug and call frame information and emitted as part of the .text.unlikely section. Unlike Propeller <https://lists.llvm.org/pipermail/llvm-dev/2019-September/135393.html>, which is presently the main user of the basic block sections feature, this pass does not require an additional round of profiling and uses existing instrumentation based FDO or CSFDO profile information. [image: Machine Function Splitter.png] In the illustration above, the functions fo...