MIR Serialization: Serialize the jump table pseudo source values.

llvm-svn: 244813

1 files changed, 76 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/MIR/X86/memory-operands.mir b/llvm/test/CodeGen/MIR/X86/memory-operands.mir
index c95d6d45900..002d147b354 100644
--- a/llvm/test/CodeGen/MIR/X86/memory-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/memory-operands.mir
@@ -84,6 +84,26 @@
     ret i32 %b
   }
 
+  define i32 @jumptable_psv(i32 %in) {
+  entry:
+    switch i32 %in, label %def [
+      i32 0, label %lbl1
+      i32 1, label %lbl2
+      i32 2, label %lbl3
+      i32 3, label %lbl4
+    ]
+  def:
+    ret i32 0
+  lbl1:
+    ret i32 1
+  lbl2:
+    ret i32 2
+  lbl3:
+    ret i32 4
+  lbl4:
+    ret i32 8
+  }
+
 ...
 ---
 name:            test
@@ -269,3 +289,59 @@ body:
       - '%eax = INC32r killed %eax, implicit-def dead %eflags'
       - 'RETQ %eax'
 ...
+---
+name:            jumptable_psv
+tracksRegLiveness: true
+liveins:
+  - { reg: '%edi' }
+jumpTable:
+  kind:          label-difference32
+  entries:
+    - id:        0
+      blocks:    [ '%bb.3.lbl1', '%bb.4.lbl2', '%bb.5.lbl3', '%bb.6.lbl4' ]
+body:
+  - id:          0
+    name:        entry
+    successors:  [ '%bb.2.def', '%bb.1.entry' ]
+    liveins:     [ '%edi' ]
+    instructions:
+      - '%eax = MOV32rr %edi, implicit-def %rax'
+      - 'CMP32ri8 killed %edi, 3, implicit-def %eflags'
+      - 'JA_1 %bb.2.def, implicit killed %eflags'
+  - id:          1
+    name:        entry
+    successors:  [ '%bb.3.lbl1', '%bb.4.lbl2', '%bb.5.lbl3', '%bb.6.lbl4' ]
+    liveins:     [ '%rax' ]
+    instructions:
+      - '%rcx = LEA64r %rip, 1, _, %jump-table.0, _'
+# CHECK: name: jumptable_psv
+# CHECK: %rax = MOVSX64rm32 %rcx, 4, killed %rax, 0, _ :: (load 4 from jump-table, align 8)
+      - '%rax = MOVSX64rm32 %rcx, 4, killed %rax, 0, _ :: (load 4 from jump-table, align 8)'
+      - '%rax = ADD64rr killed %rax, killed %rcx, implicit-def dead %eflags'
+      - 'JMP64r killed %rax'
+  - id:              2
+    name:            def
+    instructions:
+      - '%eax = MOV32r0 implicit-def dead %eflags'
+      - 'RETQ %eax'
+  - id:              3
+    name:            lbl1
+    instructions:
+      - '%eax = MOV32ri 1'
+      - 'RETQ %eax'
+  - id:              4
+    name:            lbl2
+    instructions:
+      - '%eax = MOV32ri 2'
+      - 'RETQ %eax'
+  - id:              5
+    name:            lbl3
+    instructions:
+      - '%eax = MOV32ri 4'
+      - 'RETQ %eax'
+  - id:              6
+    name:            lbl4
+    instructions:
+      - '%eax = MOV32ri 8'
+      - 'RETQ %eax'
+...