MIR: Fix parsing of stack object references in MachineMemOperands

The MachineMemOperand parser lacked the code to handle %stack.X
references (%fixed-stack.X was working).

llvm-svn: 272082

1 files changed, 18 insertions, 5 deletions

diff --git a/llvm/test/CodeGen/MIR/X86/memory-operands.mir b/llvm/test/CodeGen/MIR/X86/memory-operands.mir
index 0cf74ddbe70..38846933b93 100644
--- a/llvm/test/CodeGen/MIR/X86/memory-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/memory-operands.mir
@@ -187,9 +187,8 @@
     ret i8* %0
   }
 
-  define void @dummy() {
-    ret void
-  }
+  define void @dummy0() { ret void }
+  define void @dummy1() { ret void }
 ...
 ---
 name:            test
@@ -512,12 +511,26 @@ body: |
 ...
 ---
 # Test memory operand without associated value.
-# CHECK-LABEL: name: dummy
+# CHECK-LABEL: name: dummy0
 # CHECK: %rax = MOV64rm undef %rax, 1, _, 0, _ :: (load 8)
-name: dummy
+name: dummy0
 tracksRegLiveness: true
 body: |
   bb.0:
     %rax = MOV64rm undef %rax, 1, _, 0, _ :: (load 8)
     RETQ %rax
 ...
+---
+# Test parsing of stack references in machine memory operands.
+# CHECK-LABEL: name: dummy1
+# CHECK: %rax = MOV64rm %rsp, 1, _, 0, _ :: (load 8 from %stack.0)
+name: dummy1
+tracksRegLiveness: true
+stack:
+  - { id: 0, size: 4, alignment: 4 }
+body: |
+  bb.0:
+    %rax = MOV64rm %rsp, 1, _, 0, _ :: (load 8 from %stack.0)
+    RETQ %rax
+
+...