MIR Serialization: Serialize instruction's register ties.

[oota-llvm.git] / test / CodeGen / MIR / X86 / inline-asm-registers.mir

diff --git a/test/CodeGen/MIR/X86/inline-asm-registers.mir b/test/CodeGen/MIR/X86/inline-asm-registers.mir
index cad1d22030bfa9dcc6ede15c5fd3e2cbd6378bdc..3fd565891091a6f6134d8e72b569df8da5d8c421 100644 (file)
--- a/test/CodeGen/MIR/X86/inline-asm-registers.mir
+++ b/test/CodeGen/MIR/X86/inline-asm-registers.mir
@@ -8,6 +8,13 @@
     ret i64 %x1
   }
 
+  define i64 @test2(i64 %x, i64 %y) #0 {
+  entry:
+    %x0 = call { i64, i64 } asm "foo", "=r,=r,1,0,~{dirflag},~{fpsr},~{flags}"(i64 %x, i64 %y) #0
+    %x1 = extractvalue { i64, i64 } %x0, 0
+    ret i64 %x1
+  }
+
   attributes #0 = { nounwind }
 ...
 ---
@@ -27,3 +34,21 @@ body: |
     %rax = MOV64rr killed %rsi
     RETQ killed %rax
 ...
+---
+name:            test2
+hasInlineAsm:    true
+tracksRegLiveness: true
+liveins:
+  - { reg: '%rdi' }
+  - { reg: '%rsi' }
+body: |
+  bb.0.entry:
+    liveins: %rdi, %rsi
+
+  ; Verify that the register ties are preserved.
+  ; CHECK-LABEL: name: test2
+  ; CHECK: INLINEASM $foo, 0, 2818058, def %rsi, 2818058, def dead %rdi, 2147549193, killed %rdi(tied-def 5), 2147483657, killed %rsi(tied-def 3), 12, implicit-def dead early-clobber %eflags
+    INLINEASM $foo, 0, 2818058, def %rsi, 2818058, def dead %rdi, 2147549193, killed %rdi(tied-def 5), 2147483657, killed %rsi(tied-def 3), 12, implicit-def dead early-clobber %eflags
+    %rax = MOV64rr killed %rsi
+    RETQ killed %rax
+...