Vendor import of llvm RELEASE_34/dot1-final tag r208032 (effectively, 3.4.1 release):vendor/llvm/llvm-release_34-r208032

https://llvm.org/svn/llvm-project/llvm/tags/RELEASE_34/dot1-final@208032

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/Target/R600/R600InstrInfo.cpp b/lib/Target/R600/R600InstrInfo.cpp
index c0827fc1ca40..2eca6cf43271 100644
--- a/lib/Target/R600/R600InstrInfo.cpp
+++ b/lib/Target/R600/R600InstrInfo.cpp
@@ -716,7 +716,13 @@ R600InstrInfo::AnalyzeBranch(MachineBasicBlock &MBB,
     return false;
   }
 
-  // Get the last instruction in the block.
+  // Remove successive JUMP
+  while (I != MBB.begin() && llvm::prior(I)->getOpcode() == AMDGPU::JUMP) {
+      MachineBasicBlock::iterator PriorI = llvm::prior(I);
+      if (AllowModify)
+        I->removeFromParent();
+      I = PriorI;
+  }
   MachineInstr *LastInst = I;
 
   // If there is only one terminator instruction, process it.