1 files changed, 37 insertions, 0 deletions
diff --git a/test/CodeGen/MIR/X86/stack-object-redefinition-error.mir b/test/CodeGen/MIR/X86/stack-object-redefinition-error.mir
new file mode 100644
index 000000000000..b84863ebca67
--- /dev/null
+++ b/test/CodeGen/MIR/X86/stack-object-redefinition-error.mir
@@ -0,0 +1,37 @@
+# RUN: not llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+
+--- |
+
+  define i32 @test(i32 %a) #0 {
+  entry:
+    %b = alloca i32
+    %x = alloca i64
+    store i32 %a, i32* %b
+    store i64 2, i64* %x
+    %c = load i32, i32* %b
+    ret i32 %c
+  }
+
+  attributes #0 = { "no-frame-pointer-elim"="false" }
+
+...
+---
+name:            test
+tracksRegLiveness: true
+liveins:
+  - { reg: '%edi' }
+frameInfo:
+  maxAlignment:    8
+stack:
+  - { id: 0, name: b, offset: -12, size: 4, alignment: 4 }
+# CHECK: [[@LINE+1]]:11: redefinition of stack object '%stack.0'
+  - { id: 0, name: x, offset: -24, size: 8, alignment: 8 }
+body: |
+  bb.0.entry:
+    liveins: %edi
+
+    MOV32mr %rsp, 1, _, -4, _, killed %edi
+    MOV64mi32 %rsp, 1, _, -16, _, 2
+    %eax = MOV32rm %rsp, 1, _, -4, _
+    RETQ %eax
+...