From 6963062a997e3955dfa84875c6426bf4de6d39c7 Mon Sep 17 00:00:00 2001
From: Bruno Cardoso Lopes <bruno.cardoso@gmail.com>
Date: Tue, 9 Aug 2011 22:18:37 +0000
Subject: Use fp unpack instructions to unpack int types. Until we have AVX2,
 this is the best we can do for these patterns. This fix PR10554.

llvm-svn: 137161
---
 llvm/test/CodeGen/X86/avx-unpack.ll | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'llvm/test')

diff --git a/llvm/test/CodeGen/X86/avx-unpack.ll b/llvm/test/CodeGen/X86/avx-unpack.ll
index 4e906ee1555..d420101339f 100644
--- a/llvm/test/CodeGen/X86/avx-unpack.ll
+++ b/llvm/test/CodeGen/X86/avx-unpack.ll
@@ -56,3 +56,34 @@ entry:
   ret <4 x double> %shuffle.i
 }
 
+;;;;
+;;;; Unpack versions using the fp unit for int unpacking
+;;;;
+
+; CHECK: vunpckhps
+define <8 x i32> @unpackhips1(<8 x i32> %src1, <8 x i32> %src2) nounwind uwtable readnone ssp {
+entry:
+  %shuffle.i = shufflevector <8 x i32> %src1, <8 x i32> %src2, <8 x i32> <i32 2, i32 10, i32 3, i32 11, i32 6, i32 14, i32 7, i32 15>
+  ret <8 x i32> %shuffle.i
+}
+
+; CHECK: vunpckhpd
+define <4 x i64> @unpackhipd1(<4 x i64> %src1, <4 x i64> %src2) nounwind uwtable readnone ssp {
+entry:
+  %shuffle.i = shufflevector <4 x i64> %src1, <4 x i64> %src2, <4 x i32> <i32 1, i32 5, i32 3, i32 7>
+  ret <4 x i64> %shuffle.i
+}
+
+; CHECK: vunpcklps
+define <8 x i32> @unpacklops1(<8 x i32> %src1, <8 x i32> %src2) nounwind uwtable readnone ssp {
+entry:
+  %shuffle.i = shufflevector <8 x i32> %src1, <8 x i32> %src2, <8 x i32> <i32 0, i32 8, i32 1, i32 9, i32 4, i32 12, i32 5, i32 13>
+  ret <8 x i32> %shuffle.i
+}
+
+; CHECK: vunpcklpd
+define <4 x i64> @unpacklopd1(<4 x i64> %src1, <4 x i64> %src2) nounwind uwtable readnone ssp {
+entry:
+  %shuffle.i = shufflevector <4 x i64> %src1, <4 x i64> %src2, <4 x i32> <i32 0, i32 4, i32 2, i32 6>
+  ret <4 x i64> %shuffle.i
+}
-- 
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