From: Bill Wendling <isanbard@gmail.com>
Date: Sun, 20 Jul 2008 02:32:23 +0000 (+0000)
Subject: Fix for first part of PR2562. Generate the "pinsrw" instruction for inserts
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=3180e20cda2150a3fc694b3713cae4c5f2fda49f;p=oota-llvm.git

Fix for first part of PR2562. Generate the "pinsrw" instruction for inserts
into v4i16 vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53807 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 8bfa574fb79..85788ef90c7 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -604,6 +604,8 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
     setOperationAction(ISD::SCALAR_TO_VECTOR,   MVT::v8i8,  Custom);
     setOperationAction(ISD::SCALAR_TO_VECTOR,   MVT::v4i16, Custom);
     setOperationAction(ISD::SCALAR_TO_VECTOR,   MVT::v1i64, Custom);
+
+    setOperationAction(ISD::INSERT_VECTOR_ELT,  MVT::v4i16, Custom);
   }
 
   if (Subtarget->hasSSE1()) {
diff --git a/test/CodeGen/X86/mmx-pinsrw.ll b/test/CodeGen/X86/mmx-pinsrw.ll
new file mode 100644
index 00000000000..f1d04fa46ca
--- /dev/null
+++ b/test/CodeGen/X86/mmx-pinsrw.ll
@@ -0,0 +1,15 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+mmx | grep pinsrw | count 1
+; PR2562
+
+external global i16		; <i16*>:0 [#uses=1]
+external global <4 x i16>		; <<4 x i16>*>:1 [#uses=2]
+
+declare void @abort()
+
+define void @""() {
+	load i16* @0		; <i16>:1 [#uses=1]
+	load <4 x i16>* @1		; <<4 x i16>>:2 [#uses=1]
+	insertelement <4 x i16> %2, i16 %1, i32 0		; <<4 x i16>>:3 [#uses=1]
+	store <4 x i16> %3, <4 x i16>* @1
+	ret void
+}