[PATCH] D26855: New unsafe-fp-math implementation for X86 target

Andrew V. Tischenko via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Jan 31 01:46:03 PST 2017

avt77 added inline comments.

Comment at: lib/CodeGen/SelectionDAG/DAGCombiner.cpp:15331
+  case Triple::x86_64:
+    return SDValue();
+  }
guyblank wrote:
> sorry for joining the discussion so late.
> IIUC this affects all X86 CPUs, but I didn't see handling for all possible types (as stated in a TODO below).
> specifically, does this affect AVX-512 code?
At the moment we support only limited set of types (see X86InstrInfo::genAlternativeCodeSequence below) but we are ready to extend it if it is necessary.


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