3 files changed, 36 insertions, 6 deletions
diff --git a/llvm/test/CodeGen/MIR/X86/stack-object-invalid-name.mir b/llvm/test/CodeGen/MIR/X86/stack-object-invalid-name.mir
new file mode 100644
index 00000000000..2d4f57bad3d
--- /dev/null
+++ b/llvm/test/CodeGen/MIR/X86/stack-object-invalid-name.mir
@@ -0,0 +1,30 @@
+# RUN: not llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# This test ensures that the MIR parser reports an error when it encounters a
+# stack object with a name that can't be associated with an alloca instruction.
+
+--- |
+
+  define i32 @test(i32 %a) {
+  entry:
+    %b = alloca i32
+    store i32 %a, i32* %b
+    %c = load i32, i32* %b
+    ret i32 %c
+  }
+
+...
+---
+name:            test
+frameInfo:
+  maxAlignment:  4
+stack:
+  # CHECK: [[@LINE+1]]:20: alloca instruction named 'x' isn't defined in the function 'test'
+  - { id: 0, name: x, offset: -12, size: 4, alignment: 4 }
+body:
+  - id:          0
+    name:        entry
+    instructions:
+      - 'MOV32mr %rsp, 1, _, -4, _, %edi'
+      - '%eax = MOV32rm %rsp, 1, _, -4, _'
+      - 'RETQ %eax'
+...
diff --git a/llvm/test/CodeGen/MIR/X86/stack-objects.mir b/llvm/test/CodeGen/MIR/X86/stack-objects.mir
index 14ed4b74f96..37666300a91 100644
--- a/llvm/test/CodeGen/MIR/X86/stack-objects.mir
+++ b/llvm/test/CodeGen/MIR/X86/stack-objects.mir
@@ -21,12 +21,12 @@ name:            test
 frameInfo:
   maxAlignment:    8
 # CHECK: stack:
-# CHECK-NEXT: - { id: 0, offset: -12, size: 4, alignment: 4 }
-# CHECK-NEXT: - { id: 1, offset: -24, size: 8, alignment: 8 }
+# CHECK-NEXT: - { id: 0, name: b, offset: -12, size: 4, alignment: 4 }
+# CHECK-NEXT: - { id: 1, name: x, offset: -24, size: 8, alignment: 8 }
 # CHECK-NEXT: - { id: 2, type: spill-slot, offset: -32, size: 4, alignment: 4 }
 stack:
-  - { id: 0, offset: -12, size: 4, alignment: 4 }
-  - { id: 1, offset: -24, size: 8, alignment: 8 }
+  - { id: 0, name: b, offset: -12, size: 4, alignment: 4 }
+  - { id: 1, name: x, offset: -24, size: 8, alignment: 8 }
   - { id: 2, type: spill-slot, offset: -32, size: 4, alignment: 4 }
 body:
   - id:          0
diff --git a/llvm/test/CodeGen/MIR/X86/variable-sized-stack-objects.mir b/llvm/test/CodeGen/MIR/X86/variable-sized-stack-objects.mir
index 4c45742b25a..5e6467e9cfa 100644
--- a/llvm/test/CodeGen/MIR/X86/variable-sized-stack-objects.mir
+++ b/llvm/test/CodeGen/MIR/X86/variable-sized-stack-objects.mir
@@ -26,11 +26,11 @@ frameInfo:
 # CHECK: stack:
 # CHECK-NEXT: - { id: 0, offset: -20, size: 4, alignment: 4 }
 # CHECK-NEXT: - { id: 1, offset: -32, size: 8, alignment: 8 }
-# CHECK-NEXT: - { id: 2, type: variable-sized, offset: -32, alignment: 1 }
+# CHECK-NEXT: - { id: 2, name: y, type: variable-sized, offset: -32, alignment: 1 }
 stack:
   - { id: 0, offset: -20, size: 4, alignment: 4 }
   - { id: 1, offset: -32, size: 8, alignment: 8 }
-  - { id: 2, type: variable-sized, offset: -32, alignment: 1 }
+  - { id: 2, name: y, type: variable-sized, offset: -32, alignment: 1 }
 body:
   - id:          0
     name:        entry