[llvm][X86] AvoidTrailingCallPass for UEFI

[Prabhuk]

Enable X86AvoidTrailingCallPass for UEFI X86_64 bit target.

[llvmbot]

@llvm/pr-subscribers-backend-x86

Author: Prabhu Rajasekaran (Prabhuk)

Changes

Enable X86AvoidTrailingCallPass for UEFI X86_64 bit target.

---

Full diff: https://github.com/llvm/llvm-project/pull/138363.diff

1 Files Affected:

• (modified) llvm/lib/Target/X86/X86AvoidTrailingCall.cpp (+2-1)

diff --git a/llvm/lib/Target/X86/X86AvoidTrailingCall.cpp b/llvm/lib/Target/X86/X86AvoidTrailingCall.cpp
index 2ecf49382d29f..3aea3704c46ed 100644
--- a/llvm/lib/Target/X86/X86AvoidTrailingCall.cpp
+++ b/llvm/lib/Target/X86/X86AvoidTrailingCall.cpp
@@ -82,7 +82,8 @@ static bool isCallInstruction(const MachineInstr &MI) {
 bool X86AvoidTrailingCallPass::runOnMachineFunction(MachineFunction &MF) {
   const X86Subtarget &STI = MF.getSubtarget<X86Subtarget>();
   const X86InstrInfo &TII = *STI.getInstrInfo();
-  assert(STI.isTargetWin64() && "pass only runs on Win64");
+  assert((STI.isTargetWin64() || STI.isTargetUEFI64()) &&
+         "pass only runs on Win64 and UEFI64");
 
   // We don't need to worry about any of the invariants described above if there
   // is no unwind info (CFI).

[petrhosek]

This change only updates the assertion, where is the part that enables the pass?