[llvm] [GIsel][AArch64] Legalize <2 x i16> for G_INSERT_VECTOR_ELT (PR #65830)

[via llvm-commits]

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@@ -4,21 +4,24 @@
 name:            pr63826
 body:             |
   bb.0:
+    liveins: $d0, $w0
     ; CHECK-LABEL: name: pr63826
-    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $w0
-    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 1
-    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 42
-    ; CHECK-NEXT: [[UV:%[0-9]+]]:_(s16), [[UV1:%[0-9]+]]:_(s16) = G_UNMERGE_VALUES [[COPY]](<2 x s16>)
-    ; CHECK-NEXT: [[DEF:%[0-9]+]]:_(s16) = G_IMPLICIT_DEF
-    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s16>) = G_BUILD_VECTOR [[UV]](s16), [[UV1]](s16), [[DEF]](s16), [[DEF]](s16)
-    ; CHECK-NEXT: [[IVEC:%[0-9]+]]:_(<4 x s16>) = G_INSERT_VECTOR_ELT [[BUILD_VECTOR]], [[C]](s16), [[C1]](s32)
-    ; CHECK-NEXT: [[UV2:%[0-9]+]]:_(<2 x s16>), [[UV3:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[IVEC]](<4 x s16>)
-    ; CHECK-NEXT: $w0 = COPY [[UV2]](<2 x s16>)
-    %0:_(<2 x s16>) = COPY $w0
-    %1:_(s16) = G_CONSTANT i16 1
-    %2:_(s32) = G_CONSTANT i32 42
-    %4:_(<2 x s16>) = G_INSERT_VECTOR_ELT %0(<2 x s16>), %1(s16), %2(s32)
-    $w0 = COPY %4(<2 x s16>)
+    ; CHECK: liveins: $d0, $w0
+    ; CHECK-NEXT: {{  $}}
+    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $d0
+    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
+    ; CHECK-NEXT: [[IVEC:%[0-9]+]]:_(<2 x s32>) = G_INSERT_VECTOR_ELT [[COPY]], [[C1]](s32), [[C]](s32)
+    ; CHECK-NEXT: $d0 = COPY [[IVEC]](<2 x s32>)
+    ; CHECK-NEXT: RET_ReallyLR implicit $d0
+    %3:_(<2 x s32>) = COPY $d0
+    %1:_(<2 x s8>) = G_TRUNC %3(<2 x s32>)
+    %6:_(s32) = G_CONSTANT i32 0
+    %5:_(s8) = G_CONSTANT i8 1
+    %4:_(<2 x s8>) = G_INSERT_VECTOR_ELT %1, %5(s8), %6(s32)
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vfdff wrote:

Fixed, thanks.

https://github.com/llvm/llvm-project/pull/65830