[llvm] r212045 - [AArch64] Unsized types don't specify an alignment.

[Chad Rosier]

Author: mcrosier
Date: Mon Jun 30 10:03:00 2014
New Revision: 212045

URL: http://llvm.org/viewvc/llvm-project?rev=212045&view=rev
Log:
[AArch64] Unsized types don't specify an alignment.
PR20109

Added:
    llvm/trunk/test/CodeGen/AArch64/funcptr_cast.ll
Modified:
    llvm/trunk/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp

Modified: llvm/trunk/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp?rev=212045&r1=212044&r2=212045&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp Mon Jun 30 10:03:00 2014
@@ -593,8 +593,9 @@ bool AArch64DAGToDAGISel::SelectAddrMode
     const GlobalValue *GV = GAN->getGlobal();
     unsigned Alignment = GV->getAlignment();
     const DataLayout *DL = TLI->getDataLayout();
-    if (Alignment == 0 && !Subtarget->isTargetDarwin())
-      Alignment = DL->getABITypeAlignment(GV->getType()->getElementType());
+    Type *Ty = GV->getType()->getElementType();
+    if (Alignment == 0 && Ty->isSized() && !Subtarget->isTargetDarwin())
+      Alignment = DL->getABITypeAlignment(Ty);
 
     if (Alignment >= Size)
       return true;

Added: llvm/trunk/test/CodeGen/AArch64/funcptr_cast.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/funcptr_cast.ll?rev=212045&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/funcptr_cast.ll (added)
+++ llvm/trunk/test/CodeGen/AArch64/funcptr_cast.ll Mon Jun 30 10:03:00 2014
@@ -0,0 +1,13 @@
+; RUN: llc < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
+
+define i8 @test() {
+; CHECK-LABEL: @test
+; CHECK: adrp {{x[0-9]+}}, foo
+; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, :lo12:foo
+; CHECK: ldrb w0, [{{x[0-9]+}}]
+entry:
+  %0 = load i8* bitcast (void (...)* @foo to i8*), align 1
+  ret i8 %0
+}
+
+declare void @foo(...)