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Diffstat (limited to 'llvm/lib/Target/X86/X86SpeculativeLoadHardening.cpp')
-rw-r--r--llvm/lib/Target/X86/X86SpeculativeLoadHardening.cpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86SpeculativeLoadHardening.cpp b/llvm/lib/Target/X86/X86SpeculativeLoadHardening.cpp
index c068507095a..3d2bbd3e55c 100644
--- a/llvm/lib/Target/X86/X86SpeculativeLoadHardening.cpp
+++ b/llvm/lib/Target/X86/X86SpeculativeLoadHardening.cpp
@@ -525,7 +525,11 @@ bool X86SpeculativeLoadHardeningPass::runOnMachineFunction(
continue;
MachineInstr &MI = MBB.back();
- if (!MI.isReturn())
+
+ // We only care about returns that are not also calls. For calls, that
+ // happen to also be returns (tail calls) we will have already handled
+ // them as calls.
+ if (!MI.isReturn() || MI.isCall())
continue;
hardenReturnInstr(MI);
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