Import LLVM 4.0.0 release including clang and lld.

1 files changed, 10 insertions, 2 deletions

diff --git a/gnu/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp b/gnu/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
index 74851aedbb2..c35a67de1d7 100644
--- a/gnu/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
+++ b/gnu/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
@@ -48,6 +48,13 @@ AMDGPUSubtarget::initializeSubtargetDependencies(const Triple &TT,
 
   ParseSubtargetFeatures(GPU, FullFS);
 
+  // Unless +-flat-for-global is specified, turn on FlatForGlobal for all OS-es
+  // on VI and newer hardware to avoid assertion failures due to missing ADDR64
+  // variants of MUBUF instructions.
+  if (!hasAddr64() && !FS.contains("flat-for-global")) {
+    FlatForGlobal = true;
+  }
+
   // FIXME: I don't think think Evergreen has any useful support for
   // denormals, but should be checked. Should we issue a warning somewhere
   // if someone tries to enable these?
@@ -297,8 +304,9 @@ bool SISubtarget::isVGPRSpillingEnabled(const Function& F) const {
   return EnableVGPRSpilling || !AMDGPU::isShader(F.getCallingConv());
 }
 
-unsigned SISubtarget::getKernArgSegmentSize(unsigned ExplicitArgBytes) const {
-  unsigned ImplicitBytes = getImplicitArgNumBytes();
+unsigned SISubtarget::getKernArgSegmentSize(const MachineFunction &MF,
+					    unsigned ExplicitArgBytes) const {
+  unsigned ImplicitBytes = getImplicitArgNumBytes(MF);
   if (ImplicitBytes == 0)
     return ExplicitArgBytes;