1 files changed, 34 insertions, 0 deletions
diff --git a/test/Analysis/CostModel/X86/cast.ll b/test/Analysis/CostModel/X86/cast.ll
new file mode 100644
index 0000000000..f8b1114a7c
--- /dev/null
+++ b/test/Analysis/CostModel/X86/cast.ll
@@ -0,0 +1,34 @@
+; RUN: opt < %s  -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.8.0"
+
+define i32 @add(i32 %arg) {
+
+  ; -- Same size registeres --
+  ;CHECK: cost of 1 {{.*}} zext
+  %A = zext <4 x i1> undef to <4 x i32>
+  ;CHECK: cost of 2 {{.*}} sext
+  %B = sext <4 x i1> undef to <4 x i32>
+  ;CHECK: cost of 0 {{.*}} trunc
+  %C = trunc <4 x i32> undef to <4 x i1>
+
+  ; -- Different size registers --
+  ;CHECK-NOT: cost of 1 {{.*}} zext
+  %D = zext <8 x i1> undef to <8 x i32>
+  ;CHECK-NOT: cost of 2 {{.*}} sext
+  %E = sext <8 x i1> undef to <8 x i32>
+  ;CHECK-NOT: cost of 2 {{.*}} trunc
+  %F = trunc <8 x i32> undef to <8 x i1>
+
+  ; -- scalars --
+
+  ;CHECK: cost of 1 {{.*}} zext
+  %G = zext i1 undef to i32
+  ;CHECK: cost of 0 {{.*}} trunc
+  %H = trunc i32 undef to i1
+
+  ;CHECK: cost of 1 {{.*}} ret
+  ret i32 undef
+}
+