[PATCH] D35307: [AArch64] Initial SVE register definitions
Will Lovett via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Jul 13 03:49:32 PDT 2017
willlovett added inline comments.
================
Comment at: lib/Target/AArch64/AArch64RegisterInfo.td:766
+}
+/*
+// SVE restricted 4 bit scalable vector register class
----------------
fhahn wrote:
> Is the comment here intentional?
Yes. Some encodings (eg. single precision FCMLA) restrict the addressable register set (in this case, the second input register) to Z0-15. Similarly the 3-bit version below for half-precision restricts it to Z0-7
Repository:
rL LLVM
https://reviews.llvm.org/D35307
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