1 files changed, 51 insertions, 0 deletions
diff --git a/test/CodeGen/X86/widen_arith-4.ll b/test/CodeGen/X86/widen_arith-4.ll
new file mode 100644
index 0000000000..e19ab6574a
--- /dev/null
+++ b/test/CodeGen/X86/widen_arith-4.ll
@@ -0,0 +1,51 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse42 -disable-mmx -o %t -f
+; RUN: grep psubw  %t | count 1
+; RUN: grep pmullw %t | count 1
+
+; Widen a v5i16 to v8i16 to do a vector sub and multiple
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+
+define void @update(<5 x i16>* %dst, <5 x i16>* %src, i32 %n) nounwind {
+entry:
+	%dst.addr = alloca <5 x i16>*		; <<5 x i16>**> [#uses=2]
+	%src.addr = alloca <5 x i16>*		; <<5 x i16>**> [#uses=2]
+	%n.addr = alloca i32		; <i32*> [#uses=2]
+	%v = alloca <5 x i16>, align 16		; <<5 x i16>*> [#uses=1]
+	%i = alloca i32, align 4		; <i32*> [#uses=6]
+	store <5 x i16>* %dst, <5 x i16>** %dst.addr
+	store <5 x i16>* %src, <5 x i16>** %src.addr
+	store i32 %n, i32* %n.addr
+	store <5 x i16> < i16 1, i16 1, i16 1, i16 0, i16 0 >, <5 x i16>* %v
+	store i32 0, i32* %i
+	br label %forcond
+
+forcond:		; preds = %forinc, %entry
+	%tmp = load i32* %i		; <i32> [#uses=1]
+	%tmp1 = load i32* %n.addr		; <i32> [#uses=1]
+	%cmp = icmp slt i32 %tmp, %tmp1		; <i1> [#uses=1]
+	br i1 %cmp, label %forbody, label %afterfor
+
+forbody:		; preds = %forcond
+	%tmp2 = load i32* %i		; <i32> [#uses=1]
+	%tmp3 = load <5 x i16>** %dst.addr		; <<5 x i16>*> [#uses=1]
+	%arrayidx = getelementptr <5 x i16>* %tmp3, i32 %tmp2		; <<5 x i16>*> [#uses=1]
+	%tmp4 = load i32* %i		; <i32> [#uses=1]
+	%tmp5 = load <5 x i16>** %src.addr		; <<5 x i16>*> [#uses=1]
+	%arrayidx6 = getelementptr <5 x i16>* %tmp5, i32 %tmp4		; <<5 x i16>*> [#uses=1]
+	%tmp7 = load <5 x i16>* %arrayidx6		; <<5 x i16>> [#uses=1]
+	%sub = sub <5 x i16> %tmp7, < i16 271, i16 271, i16 271, i16 271, i16 271 >		; <<5 x i16>> [#uses=1]
+	%mul = mul <5 x i16> %sub, < i16 2, i16 2, i16 2, i16 2, i16 2 >		; <<5 x i16>> [#uses=1]
+	store <5 x i16> %mul, <5 x i16>* %arrayidx
+	br label %forinc
+
+forinc:		; preds = %forbody
+	%tmp8 = load i32* %i		; <i32> [#uses=1]
+	%inc = add i32 %tmp8, 1		; <i32> [#uses=1]
+	store i32 %inc, i32* %i
+	br label %forcond
+
+afterfor:		; preds = %forcond
+	ret void
+}
+