[llvm] 4058610 - [Hexagon] Register MachineKCFILegacy pass in LLVMInitializeHexagonTarget (#209245)

[via llvm-commits]

Author: Brian Cain
Date: 2026-07-13T21:20:38-05:00
New Revision: 4058610aecb6d261f3ea1777dd5c0e531a5cc17e

URL: https://github.com/llvm/llvm-project/commit/4058610aecb6d261f3ea1777dd5c0e531a5cc17e
DIFF: https://github.com/llvm/llvm-project/commit/4058610aecb6d261f3ea1777dd5c0e531a5cc17e.diff

LOG: [Hexagon] Register MachineKCFILegacy pass in LLVMInitializeHexagonTarget (#209245)

Hexagon's target-init function never called
initializeMachineKCFILegacyPass(PR), unlike X86, ARM, AArch64, and
RISCV. Since PassRegistry is process-wide and each target's init
function registers passes as a side effect when linked into the same
binary, whether test/CodeGen/Hexagon/kcfi.ll passed depended on whether
some other target providing that registration was also built into llc,
rather than on Hexagon's own configuration.

Added: 
    

Modified: 
    llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
index 6171a60f33366..7811c56928084 100644
--- a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
@@ -24,6 +24,7 @@
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/CodeGen/TargetPassConfig.h"
 #include "llvm/CodeGen/VLIWMachineScheduler.h"
+#include "llvm/InitializePasses.h"
 #include "llvm/MC/TargetRegistry.h"
 #include "llvm/Passes/PassBuilder.h"
 #include "llvm/Support/CommandLine.h"
@@ -250,6 +251,7 @@ LLVMInitializeHexagonTarget() {
   initializeHexagonQFPOptimizerPass(PR);
   initializeHexagonXQFloatGeneratorPass(PR);
   initializeHexagonPostRAHandleQFPPass(PR);
+  initializeMachineKCFILegacyPass(PR);
 }
 
 HexagonTargetMachine::HexagonTargetMachine(const Target &T, const Triple &TT,