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-rw-r--r--llvm/lib/Target/AArch64/AArch64ExpandPseudoInsts.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64ExpandPseudoInsts.cpp b/llvm/lib/Target/AArch64/AArch64ExpandPseudoInsts.cpp
index 4fb1bb11d1a..db6dcc7131d 100644
--- a/llvm/lib/Target/AArch64/AArch64ExpandPseudoInsts.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ExpandPseudoInsts.cpp
@@ -624,7 +624,6 @@ bool AArch64ExpandPseudo::expandCMP_SWAP(
// ldaxr xDest, [xAddr]
// cmp xDest, xDesired
// b.ne .Ldone
- MBB.addSuccessor(LoadCmpBB);
LoadCmpBB->addLiveIn(Addr.getReg());
LoadCmpBB->addLiveIn(Dest.getReg());
LoadCmpBB->addLiveIn(Desired.getReg());
@@ -663,6 +662,8 @@ bool AArch64ExpandPseudo::expandCMP_SWAP(
DoneBB->transferSuccessors(&MBB);
addPostLoopLiveIns(DoneBB, LiveRegs);
+ MBB.addSuccessor(LoadCmpBB);
+
NextMBBI = MBB.end();
MI.eraseFromParent();
return true;
@@ -702,7 +703,6 @@ bool AArch64ExpandPseudo::expandCMP_SWAP_128(
// cmp xDestLo, xDesiredLo
// sbcs xDestHi, xDesiredHi
// b.ne .Ldone
- MBB.addSuccessor(LoadCmpBB);
LoadCmpBB->addLiveIn(Addr.getReg());
LoadCmpBB->addLiveIn(DestLo.getReg());
LoadCmpBB->addLiveIn(DestHi.getReg());
@@ -749,6 +749,8 @@ bool AArch64ExpandPseudo::expandCMP_SWAP_128(
DoneBB->transferSuccessors(&MBB);
addPostLoopLiveIns(DoneBB, LiveRegs);
+ MBB.addSuccessor(LoadCmpBB);
+
NextMBBI = MBB.end();
MI.eraseFromParent();
return true;
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