GCC modified for the FreeChainXenon project
839bc42772
In some cases combine will "combine" an I2 and I3, but end up putting exactly the same thing back as I2 as was there before. This is never progress, so we shouldn't do it, it will lead to oscillating behaviour and the like. If we want to canonicalise things, that's fine, but this is not the way to do it. 2024-03-27 Segher Boessenkool <segher@kernel.crashing.org> PR rtl-optimization/101523 * combine.cc (try_combine): Don't do a 2-insn combination if it does not in fact change I2. |
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