[PATCH] D99195: [RISCV] Optimize BUILD_VECTOR sequences that reveal hidden splats

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: llvm/lib/Target/RISCV/RISCVISelLowering.cpp:1274
+    }
+
+    // Since we can't introduce illegal i64 types at this stage, we can only
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Do we need to sign extend SplatValue if the ViaIntVT is 32 and XLen is 64 bit to guarantee optimal constant materialization?


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  https://reviews.llvm.org/D99195/new/

https://reviews.llvm.org/D99195