[PATCH] R600: Fix up for AsmPrinter's OutStreamer being a unique_ptr

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer at amd.com>

Fixes a crash with basically any OpenGL application using the radeonsi
driver.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90176
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 lib/Target/R600/AMDGPUMCInstLower.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/Target/R600/AMDGPUMCInstLower.cpp b/lib/Target/R600/AMDGPUMCInstLower.cpp
index b00bd8d..708bb6f 100644
--- a/lib/Target/R600/AMDGPUMCInstLower.cpp
+++ b/lib/Target/R600/AMDGPUMCInstLower.cpp
@@ -132,8 +132,8 @@ void AMDGPUAsmPrinter::EmitInstruction(const MachineInstr *MI) {
       SmallVector<char, 16> CodeBytes;
       raw_svector_ostream CodeStream(CodeBytes);
 
-      MCObjectStreamer &ObjStreamer = (MCObjectStreamer &)OutStreamer;
-      MCCodeEmitter &InstEmitter = ObjStreamer.getAssembler().getEmitter();
+      MCObjectStreamer *ObjStreamer = (MCObjectStreamer *)OutStreamer.get();
+      MCCodeEmitter &InstEmitter = ObjStreamer->getAssembler().getEmitter();
       InstEmitter.EncodeInstruction(TmpInst, CodeStream, Fixups,
                                     MF->getSubtarget<MCSubtargetInfo>());
       CodeStream.flush();
-- 
2.1.4