1 files changed, 46 insertions, 0 deletions
diff --git a/test/CodeGen/X86/inreg.ll b/test/CodeGen/X86/inreg.ll
new file mode 100644
index 0000000..6653cfb
--- /dev/null
+++ b/test/CodeGen/X86/inreg.ll
@@ -0,0 +1,46 @@
+; RUN: llc < %s -mtriple=i686-pc-linux -mcpu=corei7 | FileCheck --check-prefix=DAG %s
+; RUN: llc < %s -mtriple=i686-pc-linux -mcpu=corei7 -O0 | FileCheck --check-prefix=FAST %s
+
+%struct.s1 = type { double, float }
+
+define void @g1() nounwind {
+entry:
+  %tmp = alloca %struct.s1, align 4
+  call void @f(%struct.s1* inreg sret %tmp, i32 inreg 41, i32 inreg 42, i32 43)
+  ret void
+  ; DAG: g1:
+  ; DAG: subl $[[AMT:.*]], %esp
+  ; DAG-NEXT: $43, (%esp)
+  ; DAG-NEXT: leal    16(%esp), %eax
+  ; DAG-NEXT: movl    $41, %edx
+  ; DAG-NEXT: movl    $42, %ecx
+  ; DAG-NEXT: calll   f
+  ; DAG-NEXT: addl $[[AMT]], %esp
+  ; DAG-NEXT: ret
+
+  ; FAST: g1:
+  ; FAST: subl $[[AMT:.*]], %esp
+  ; FAST-NEXT: leal    8(%esp), %eax
+  ; FAST-NEXT: movl    $41, %edx
+  ; FAST-NEXT: movl    $42, %ecx
+  ; FAST: $43, (%esp)
+  ; FAST: calll   f
+  ; FAST-NEXT: addl $[[AMT]], %esp
+  ; FAST: ret
+}
+
+declare void @f(%struct.s1* inreg sret, i32 inreg, i32 inreg, i32)
+
+%struct.s2 = type {}
+
+define void @g2(%struct.s2* inreg sret %agg.result) nounwind {
+entry:
+  ret void
+  ; DAG: g2
+  ; DAG-NOT: ret $4
+  ; DAG: .size g2
+
+  ; FAST: g2
+  ; FAST-NOT: ret $4
+  ; FAST: .size g2
+}