[Hexagon] Make sure duplexed dealloc_returns are checked for double jumps

Patch by Colin LeMahieu.

llvm-svn: 301951

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.cpp b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.cpp
index 4844862e6d1..2a3af20b35f 100644
--- a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.cpp
+++ b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.cpp
@@ -336,6 +336,14 @@ bool HexagonShuffler::check() {
         ++jumps;
         foundBranches.push_back(ISJ);
       }
+      if (HexagonMCInstrInfo::getDesc(MCII, Inst0).isReturn()) {
+        ++deallocs, ++jumps, ++jump1; // DEALLOC_RETURN is of type LD.
+        foundBranches.push_back(ISJ);
+      }
+      if (HexagonMCInstrInfo::getDesc(MCII, Inst1).isReturn()) {
+        ++deallocs, ++jumps, ++jump1; // DEALLOC_RETURN is of type LD.
+        foundBranches.push_back(ISJ);
+      }
       break;
     }
     }