Add v4i32 <-> v4f32 bitconvert patterns.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26969 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index 518b665..f9b9749 100644
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -871,3 +871,7 @@
 def : Pat<(vector_shuffle (v4i32 VR128:$src), (undef), PSHUFD_shuffle_mask:$sm),
           (v4i32 (PSHUFDrr VR128:$src, PSHUFD_shuffle_mask:$sm))>,
   Requires<[HasSSE2]>;
+
+// bit_convert
+def : Pat<(v4i32 (bitconvert (v4f32 VR128:$src))), (v4i32 VR128:$src)>;
+def : Pat<(v4f32 (bitconvert (v4i32 VR128:$src))), (v4f32 VR128:$src)>;