commit f29c8ad917e5fdc8fdd3d43707073be217bad625
author Chris Lattner <sabre@nondot.org> Sat Apr 18 07:01:54 2009 +0000
committer Chris Lattner <sabre@nondot.org> Sat Apr 18 07:01:54 2009 +0000
tree 8adb1bf810f022e391fc8cc9e395b862b5bf5739
parent bb6f78bf37aabcba38b38cd987a7a37df9879499

fix incorrect lowering of __builtin_ia32_shufpd, rdar://6803924


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69428 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGBuiltin.cpp

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 5ef01ac..e7adf72 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -891,7 +891,8 @@
   }
   case X86::BI__builtin_ia32_shufpd: {
     unsigned i = cast<ConstantInt>(Ops[2])->getZExtValue();
-    return EmitShuffleVector(Ops[0], Ops[1], i & 1, (i & 2) + 2, "shufpd");
+    return EmitShuffleVector(Ops[0], Ops[1], i & 1,
+                             ((i & 2) >> 1)+2, "shufpd");
   }
   case X86::BI__builtin_ia32_punpcklbw128:
     return EmitShuffleVector(Ops[0], Ops[1], 0, 16, 1, 17, 2, 18, 3, 19,