[PATCH] D153258: AMDGPU: Optimize set_rounding if input is known to fit in 2 bits

[Pierre van Houtryve via Phabricator via llvm-commits]

Pierre-vh added a comment.

Code LGTM but I'm not well-versed in this kind of floating point magic so I will leave it up to someone that knows more to approve :)



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Comment at: llvm/lib/Target/AMDGPU/SIISelLowering.cpp:3624-3626
+    const bool UseReducedTable = KB.countMinLeadingZeros() >= 30;
 
+    if (UseReducedTable) {
----------------
nit: inline `UseReducedTable`?


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  https://reviews.llvm.org/D153258/new/

https://reviews.llvm.org/D153258