[llvm] [RISCV][GlobalISel] Vector Extension vadd Legalizer (PR #71400)

[Michael Maitland via llvm-commits]

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@@ -31,10 +31,16 @@ RISCVLegalizerInfo::RISCVLegalizerInfo(const RISCVSubtarget &ST) {
   const LLT s32 = LLT::scalar(32);
   const LLT s64 = LLT::scalar(64);
 
+  const LLT nxv1s8 = LLT::scalable_vector(1, s8);
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michaelmaitland wrote:

To move this PR out of draft, we should legalize G_ADD for all relevant vector types. 

https://github.com/llvm/llvm-project/pull/71400