[ARM GlobalISel] Be more careful about bailing out

Bail out on function arguments/returns with types aggregating an
unsupported type. This fixes cases where we would happily and
incorrectly lower functions taking e.g. [1 x i64] parameters, when we
don't even support plain i64 yet.

llvm-svn: 359540

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Target/ARM/ARMCallLowering.cpp b/llvm/lib/Target/ARM/ARMCallLowering.cpp
index b70d55f73ba..5229064032a 100644
--- a/llvm/lib/Target/ARM/ARMCallLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMCallLowering.cpp
@@ -55,7 +55,7 @@ ARMCallLowering::ARMCallLowering(const ARMTargetLowering &TLI)
 static bool isSupportedType(const DataLayout &DL, const ARMTargetLowering &TLI,
                             Type *T) {
   if (T->isArrayTy())
-    return true;
+    return isSupportedType(DL, TLI, T->getArrayElementType());
 
   if (T->isStructTy()) {
     // For now we only allow homogeneous structs that we can manipulate with
@@ -64,7 +64,7 @@ static bool isSupportedType(const DataLayout &DL, const ARMTargetLowering &TLI,
     for (unsigned i = 1, e = StructT->getNumElements(); i != e; ++i)
       if (StructT->getElementType(i) != StructT->getElementType(0))
         return false;
-    return true;
+    return isSupportedType(DL, TLI, StructT->getElementType(0));
   }
 
   EVT VT = TLI.getValueType(DL, T, true);