From: Kevin Qin <Kevin.Qin@arm.com>
Date: Fri, 21 Mar 2014 02:14:50 +0000 (+0000)
Subject: Fix an assertion caused by using inline asm with indirect register inputs.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c53b3dbc20739e63c058b4a35f8f0caec18618c5;p=oota-llvm.git

Fix an assertion caused by using inline asm with indirect register inputs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204425 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index b60e7803b79..55fe1563caf 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -6185,7 +6185,7 @@ static void GetRegistersForValue(SelectionDAG &DAG,
       // types are identical size, use a bitcast to convert (e.g. two differing
       // vector types).
       MVT RegVT = *PhysReg.second->vt_begin();
-      if (RegVT.getSizeInBits() == OpInfo.ConstraintVT.getSizeInBits()) {
+      if (RegVT.getSizeInBits() == OpInfo.CallOperand.getValueSizeInBits()) {
         OpInfo.CallOperand = DAG.getNode(ISD::BITCAST, DL,
                                          RegVT, OpInfo.CallOperand);
         OpInfo.ConstraintVT = RegVT;
diff --git a/test/CodeGen/ARM/inline-diagnostics.ll b/test/CodeGen/ARM/inline-diagnostics.ll
new file mode 100644
index 00000000000..245fa79f815
--- /dev/null
+++ b/test/CodeGen/ARM/inline-diagnostics.ll
@@ -0,0 +1,16 @@
+; RUN: not llc %s -verify-machineinstrs -mtriple=armv7-none-linux-gnu -mattr=+neon 2>&1 | FileCheck %s
+
+%struct.float4 = type { float, float, float, float }
+
+; CHECK: error: Don't know how to handle indirect register inputs yet for constraint 'w'
+define float @inline_func(float %f1, float %f2) #0 {
+  %c1 = alloca %struct.float4, align 4
+  %c2 = alloca %struct.float4, align 4
+  %c3 = alloca %struct.float4, align 4
+  call void asm sideeffect "vmul.f32 ${2:q}, ${0:q}, ${1:q}", "=*r,=*r,*w"(%struct.float4* %c1, %struct.float4* %c2, %struct.float4* %c3) #1, !srcloc !1
+  %x = getelementptr inbounds %struct.float4* %c3, i32 0, i32 0
+  %1 = load float* %x, align 4
+  ret float %1
+}
+
+!1 = metadata !{i32 271, i32 305}