john-brawn-arm wrote: It's been several years since I looked at this, but from my notes what's needed before setting HasStrictFP=true is:
- Instruction selection patterns for strict fp ops. This is probably just changing e.g. "fadd" to "any_fadd" as I expect for most or all of the instruction selection patterns work fine with strict fp. - Instructions that can raise fp exceptions need to have mayRaiseFPException=1. Without this transformations can move around or just remove instructions that raise fp exceptions. - We need proper modelling of reads/write of the FPSCR rounding control bits for controllable rounding modes to be handled correctly. https://github.com/llvm/llvm-project/pull/137101 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
