Index: lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- lib/Target/X86/X86ISelLowering.cpp
+++ lib/Target/X86/X86ISelLowering.cpp
@@ -23188,7 +23188,7 @@
     SDValue OldExtract = St->getOperand(1);
     SDValue ExtOp0 = OldExtract.getOperand(0);
     unsigned VecSize = ExtOp0.getValueSizeInBits();
-    MVT VecVT = MVT::getVectorVT(MVT::f64, VecSize / 64);
+    EVT VecVT = EVT::getVectorVT(*DAG.getContext(), MVT::f64, VecSize / 64);
     SDValue BitCast = DAG.getNode(ISD::BITCAST, dl, VecVT, ExtOp0);
     SDValue NewExtract = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, MVT::f64,
                                      BitCast, OldExtract.getOperand(1));
Index: test/CodeGen/X86/pr23476.ll
===================================================================
--- test/CodeGen/X86/pr23476.ll
+++ test/CodeGen/X86/pr23476.ll
@@ -0,0 +1,45 @@
+; RUN: llc < %s -mattr=+avx | FileCheck %s
+
+target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
+target triple = "i386-unknown-linux-gnu"
+
+; Function Attrs: nounwind readnone
+declare double @log(double) #0
+
+; Function Attrs: nounwind readnone
+;declare i32 @llvm.x86.avx.movmsk.ps.256(<8 x float>) #0
+
+; Function Attrs: nounwind
+;declare void @llvm.x86.avx.maskstore.ps.256(i8*, <8 x float>, <8 x float>) #1
+
+; Function Attrs: nounwind readnone
+;declare <4 x double> @llvm.x86.avx.blendv.pd.256(<4 x double>, <4 x double>, <4 x double>) #0
+
+; Function Attrs: nounwind readnone
+;declare i64 @llvm.cttz.i64(i64, i1) #0
+
+; CHECK-LABEL: f_v
+; CHECK: vmovsd  {{.*#+}} xmm0 = mem[0],zero
+; CHECK: vmovsd  %xmm0, (%esp)
+; Function Attrs: nounwind
+define void @f_v(float* noalias nocapture %RET) #1 {
+allocas:
+  br label %foreach_active_find_next.i
+
+foreach_active_find_next.i:                       ; preds = %foreach_active_find_next.i, %allocas
+  ;%extract.i.i.i = extractelement <16 x i64> <i64 4668012349850910720, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0>, i32 undef
+  %extract.i.i.i = extractelement <14 x i64> <i64 4668012349850910720, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0>, i32 undef
+  %int_to_double_bitcast.i.i.i41.i = bitcast i64 %extract.i.i.i to double
+  %r.i.i = tail call double @log(double %int_to_double_bitcast.i.i.i41.i) #1
+  br i1 undef, label %log___vyd.exit, label %foreach_active_find_next.i
+
+log___vyd.exit:                                   ; preds = %foreach_active_find_next.i
+  ret void
+}
+
+attributes #0 = { nounwind readnone }
+attributes #1 = { nounwind }
+
+!llvm.ident = !{!0}
+
+!0 = !{!"clang version 3.7.0 (trunk 236935)"}