v16i8 splat with 2 punpcklbw and a single pshufd.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27877 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/vec_splat-2.ll b/test/CodeGen/X86/vec_splat-2.ll
new file mode 100644 (file)
index 0000000..c1958fd
--- /dev/null
+++ b/test/CodeGen/X86/vec_splat-2.ll
@@ -0,0 +1,26 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep pshufd | wc -l | grep 1
+
+void %test(<2 x long>* %P, sbyte %x) {
+       %tmp = insertelement <16 x sbyte> zeroinitializer, sbyte %x, uint 0             ; <<16 x sbyte>> [#uses=1]
+       %tmp36 = insertelement <16 x sbyte> %tmp, sbyte %x, uint 1
+       %tmp38 = insertelement <16 x sbyte> %tmp36, sbyte %x, uint 2
+       %tmp40 = insertelement <16 x sbyte> %tmp38, sbyte %x, uint 3
+       %tmp42 = insertelement <16 x sbyte> %tmp40, sbyte %x, uint 4
+       %tmp44 = insertelement <16 x sbyte> %tmp42, sbyte %x, uint 5
+       %tmp46 = insertelement <16 x sbyte> %tmp44, sbyte %x, uint 6
+       %tmp48 = insertelement <16 x sbyte> %tmp46, sbyte %x, uint 7
+       %tmp50 = insertelement <16 x sbyte> %tmp48, sbyte %x, uint 8
+       %tmp52 = insertelement <16 x sbyte> %tmp50, sbyte %x, uint 9
+       %tmp54 = insertelement <16 x sbyte> %tmp52, sbyte %x, uint 10
+       %tmp56 = insertelement <16 x sbyte> %tmp54, sbyte %x, uint 11
+       %tmp58 = insertelement <16 x sbyte> %tmp56, sbyte %x, uint 12
+       %tmp60 = insertelement <16 x sbyte> %tmp58, sbyte %x, uint 13
+       %tmp62 = insertelement <16 x sbyte> %tmp60, sbyte %x, uint 14
+       %tmp64 = insertelement <16 x sbyte> %tmp62, sbyte %x, uint 15
+       %tmp68 = load <2 x long>* %P
+       %tmp71 = cast <2 x long> %tmp68 to <16 x sbyte>
+       %tmp73 = add <16 x sbyte> %tmp71, %tmp64
+       %tmp73 = cast <16 x sbyte> %tmp73 to <2 x long>
+       store <2 x long> %tmp73, <2 x long>* %P
+       ret void
+}