[llvm] [RISCV][GlobalISel] Legalize Scalable Vector Loads and Stores (PR #84965)

[Michael Maitland via llvm-commits]

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@@ -0,0 +1,98 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -mtriple=riscv32 -mattr=+v -run-pass=legalizer %s -o - | FileCheck %s
+# RUN: llc -mtriple=riscv64 -mattr=+v -run-pass=legalizer %s -o - | FileCheck %s
+--- |
+
+  define void @vstore_nx1i8(ptr %pa, <vscale x 1 x i8> %b) {
+    store <vscale x 1 x i8> %b, ptr %pa, align 1
+    ret void
+  }
+ 
+  define <vscale x 2 x i8> @vload_nx2i8(ptr %pa) {
+    %va = load <vscale x 2 x i8>, ptr %pa, align 2
+    ret <vscale x 2 x i8> %va
+  }
+  
+  define <vscale x 4 x i8> @vload_nx4i8(ptr %pa) {
+    %va = load <vscale x 4 x i8>, ptr %pa, align 4
+    ret <vscale x 4 x i8> %va
+  }
+  
+  define <vscale x 8 x i8> @vload_nx8i8(ptr %pa) {
+    %va = load <vscale x 8 x i8>, ptr %pa, align 8
+    ret <vscale x 8 x i8> %va
+  }
+  
+  define <vscale x 16 x i8> @vload_nx16i8(ptr %pa) {
+    %va = load <vscale x 16 x i8>, ptr %pa, align 16
+    ret <vscale x 16 x i8> %va
+  }
+  
+...
+---
+name:            vstore_nx1i8
+body:             |
+  bb.1 (%ir-block.0):
+    liveins: $v8, $x10
+
+    ; CHECK-LABEL: name: vstore_nx1i8
+    ; CHECK: liveins: $v8, $x10
+    ; CHECK-NEXT: {{  $}}
+    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY $x10
+    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(<vscale x 1 x s8>) = COPY $v8
+    ; CHECK-NEXT: G_STORE [[COPY1]](<vscale x 1 x s8>), [[COPY]](p0) :: (store (<vscale x 1 x s8>) into %ir.pa)
+    ; CHECK-NEXT: PseudoRET
+    %0:_(p0) = COPY $x10
+    %1:_(<vscale x 1 x s8>) = COPY $v8
+    G_STORE %1(<vscale x 1 x s8>), %0(p0) :: (store (<vscale x 1 x s8>) into %ir.pa)
+    PseudoRET
+
+...
+---
+name:            vload_nx2i8
----------------
michaelmaitland wrote:

should these be renamed vstore_xxx?

https://github.com/llvm/llvm-project/pull/84965