[PATCH] D103758: [RISCV] Use ZeroOrNegativeOneBooleanContent for vectors.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: frasercrmck, evandro, HsiangKai, khchen, arcbbb, rogfer01.
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We use i1 vectors for boolean results for V so the difference between
one and negative probably doesn't matter in most cases. Zero or negative
one is consistent with the P extension if we ever need V and P to co-exist.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103758

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp


Index: llvm/lib/Target/RISCV/RISCVISelLowering.cpp
===================================================================
--- llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -391,7 +391,7 @@
   setBooleanContents(ZeroOrOneBooleanContent);
 
   if (Subtarget.hasStdExtV()) {
-    setBooleanVectorContents(ZeroOrOneBooleanContent);
+    setBooleanVectorContents(ZeroOrNegativeOneBooleanContent);
 
     setOperationAction(ISD::VSCALE, XLenVT, Custom);
 


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