Fix clang crashes on Neon vld[234]_dup intrinsics with 64-bit element types.

The 64-bit element vectors need to be handled as a special case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121592 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 6480b1594e2632a586c67411f225dc2a9d19a754..43b1ef80d655faf3113d243f3caa99ab1ab977d0 100644 (file)
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -1379,6 +1379,27 @@ Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID,
   case ARM::BI__builtin_neon_vld2_dup_v:
   case ARM::BI__builtin_neon_vld3_dup_v:
   case ARM::BI__builtin_neon_vld4_dup_v: {
+    // Handle 64-bit elements as a special-case.  There is no "dup" needed.
+    if (VTy->getElementType()->getPrimitiveSizeInBits() == 64) {
+      switch (BuiltinID) {
+      case ARM::BI__builtin_neon_vld2_dup_v: 
+        Int = Intrinsic::arm_neon_vld2; 
+        break;
+      case ARM::BI__builtin_neon_vld3_dup_v:
+        Int = Intrinsic::arm_neon_vld2; 
+        break;
+      case ARM::BI__builtin_neon_vld4_dup_v:
+        Int = Intrinsic::arm_neon_vld2; 
+        break;
+      default: assert(0 && "unknown vld_dup intrinsic?");
+      }
+      Function *F = CGM.getIntrinsic(Int, &Ty, 1);
+      Value *Align = GetPointeeAlignment(*this, E->getArg(1));
+      Ops[1] = Builder.CreateCall2(F, Ops[1], Align, "vld_dup");
+      Ty = llvm::PointerType::getUnqual(Ops[1]->getType());
+      Ops[0] = Builder.CreateBitCast(Ops[0], Ty);
+      return Builder.CreateStore(Ops[1], Ops[0]);
+    }
     switch (BuiltinID) {
     case ARM::BI__builtin_neon_vld2_dup_v: 
       Int = Intrinsic::arm_neon_vld2lane;