More replacing of target-dependent intrinsics with target-indepdent

intrinsics.  The second instruction(s) to be handled are the vector versions 
of count set bits (ctpop).

The changes here are to clang so that it generates a target independent 
vector ctpop when it sees an ARM dependent vector bits set count.  The changes 
in llvm are to match the target independent vector ctpop and in 
VMCore/AutoUpgrade.cpp to update any existing bc files containing ARM 
dependent vector pop counts with target-independent ctpops.  There are also 
changes to an existing test case in llvm for ARM vector count instructions and 
to a test for the bitcode upgrade.

<rdar://problem/11892519>

There is deliberately no test for the change to clang, as so far as I know, no
consensus has been reached regarding how to test neon instructions in clang;
q.v. <rdar://problem/8762292>

llvm-svn: 160410

1 files changed, 6 insertions, 6 deletions

diff --git a/llvm/test/CodeGen/ARM/vcnt.ll b/llvm/test/CodeGen/ARM/vcnt.ll
index 7e54524db78..9f55c24b402 100644
--- a/llvm/test/CodeGen/ARM/vcnt.ll
+++ b/llvm/test/CodeGen/ARM/vcnt.ll
@@ -3,22 +3,22 @@
 
 define <8 x i8> @vcnt8(<8 x i8>* %A) nounwind {
 ;CHECK: vcnt8:
-;CHECK: vcnt.8
+;CHECK: vcnt.8 {{d[0-9]+}}, {{d[0-9]+}}
 	%tmp1 = load <8 x i8>* %A
-	%tmp2 = call <8 x i8> @llvm.arm.neon.vcnt.v8i8(<8 x i8> %tmp1)
+	%tmp2 = call <8 x i8> @llvm.ctpop.v8i8(<8 x i8> %tmp1)
 	ret <8 x i8> %tmp2
 }
 
 define <16 x i8> @vcntQ8(<16 x i8>* %A) nounwind {
 ;CHECK: vcntQ8:
-;CHECK: vcnt.8
+;CHECK: vcnt.8 {{q[0-9]+}}, {{q[0-9]+}}
 	%tmp1 = load <16 x i8>* %A
-	%tmp2 = call <16 x i8> @llvm.arm.neon.vcnt.v16i8(<16 x i8> %tmp1)
+	%tmp2 = call <16 x i8> @llvm.ctpop.v16i8(<16 x i8> %tmp1)
 	ret <16 x i8> %tmp2
 }
 
-declare <8 x i8>  @llvm.arm.neon.vcnt.v8i8(<8 x i8>) nounwind readnone
-declare <16 x i8> @llvm.arm.neon.vcnt.v16i8(<16 x i8>) nounwind readnone
+declare <8 x i8>  @llvm.ctpop.v8i8(<8 x i8>) nounwind readnone
+declare <16 x i8> @llvm.ctpop.v16i8(<16 x i8>) nounwind readnone
 
 define <8 x i8> @vclz8(<8 x i8>* %A) nounwind {
 ;CHECK: vclz8: