1 files changed, 45 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/MIR/AArch64/mirCanonCopyCopyProp.mir b/llvm/test/CodeGen/MIR/AArch64/mirCanonCopyCopyProp.mir
new file mode 100644
index 00000000000..f3c20075860
--- /dev/null
+++ b/llvm/test/CodeGen/MIR/AArch64/mirCanonCopyCopyProp.mir
@@ -0,0 +1,45 @@
+# RUN: llc -mtriple=arm64-apple-ios11.0.0 -o - -run-pass mir-canonicalizer %s | FileCheck %s
+
+...
+---
+name: Proc8
+stack:
+  - { id: 0, type: default, offset: 0, size: 4, alignment: 4,
+      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
+      local-offset: -4, di-variable: '', di-expression: '', di-location: '' }
+  - { id: 1, type: default, offset: 0, size: 8, alignment: 8,
+      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
+      local-offset: -16, di-variable: '', di-expression: '', di-location: '' }
+  - { id: 2, type: default, offset: 0, size: 8, alignment: 8,
+      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
+      local-offset: -24, di-variable: '', di-expression: '', di-location: '' }
+  - { id: 3, type: default, offset: 0, size: 8, alignment: 8,
+      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
+      local-offset: -32, di-variable: '', di-expression: '', di-location: '' }
+  - { id: 4, type: default, offset: 0, size: 8, alignment: 8,
+      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
+      local-offset: -40, di-variable: '', di-expression: '', di-location: '' }
+  - { id: 5, type: default, offset: 0, size: 8, alignment: 8,
+      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
+      local-offset: -48, di-variable: '', di-expression: '', di-location: '' }
+  - { id: 6, type: default, offset: 0, size: 8, alignment: 8,
+      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
+      local-offset: -56, di-variable: '', di-expression: '', di-location: '' }
+constants:
+body: |
+  bb.0:
+    liveins: $x0, $x1, $d0, $d1
+
+    %42:gpr32 = LDRWui %stack.0, 0 :: (dereferenceable load 8)
+
+    ;CHECK: %namedVReg1352:gpr32 = LDRWui %stack.0, 0 :: (dereferenceable load 8)
+    ;CHECK: $w0 = COPY %namedVReg1352
+    ;CHECK: RET_ReallyLR implicit $w0
+
+    %vreg1234:gpr32 = COPY %42
+    %vreg1235:gpr32 = COPY %vreg1234
+    %vreg1236:gpr32 = COPY %vreg1235
+    $w0 = COPY %vreg1236
+    RET_ReallyLR implicit $w0
+
+...