1 files changed, 36 insertions, 0 deletions
diff --git a/llvm/test/MachineVerifier/verifier-phi.mir b/llvm/test/MachineVerifier/verifier-phi.mir
new file mode 100644
index 00000000000..87f2efcc82d
--- /dev/null
+++ b/llvm/test/MachineVerifier/verifier-phi.mir
@@ -0,0 +1,36 @@
+# RUN: llc -o - %s -mtriple=x86_64-- -verify-machineinstrs -run-pass=none | FileCheck %s
+# REQUIRES: x86-registered-target
+
+# This should cleanly pass the machine verifier
+---
+# CHECK-LABEL: name: func0
+# CHECK: %0:gr32 = PHI undef %1:gr32, %bb.0, undef %1:gr32, %bb.1
+name: func0
+tracksRegLiveness: true
+body: |
+  bb.0:
+    JE_1 %bb.1, implicit undef $eflags
+    JMP_1 %bb.2
+
+  bb.1:
+
+  bb.2:
+    %0 : gr32 = PHI undef %1 : gr32, %bb.0, undef %1 : gr32, %bb.1
+...
+---
+# CHECK-LABEL: name: func1
+# CHECK: %2:gr32 = PHI %0, %bb.0, %1, %bb.1
+name: func1
+tracksRegLiveness: true
+body: |
+  bb.0:
+    %0 : gr32 = IMPLICIT_DEF
+    JE_1 %bb.1, implicit undef $eflags
+    JMP_1 %bb.2
+
+  bb.1:
+    %1 : gr32 = IMPLICIT_DEF
+
+  bb.2:
+    %2 : gr32 = PHI %0, %bb.0, %1, %bb.1
+...