[llvm] [llvm] No DWARF CFI for UEFI (PR #138602)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-x86

Author: Prabhu Rajasekaran (Prabhuk)

<details>
<summary>Changes</summary>

UEFI target uses WinCFI. Update emitEpilogue function to reflect this.


---
Full diff: https://github.com/llvm/llvm-project/pull/138602.diff


1 Files Affected:

- (modified) llvm/lib/Target/X86/X86FrameLowering.cpp (+2-1) 


``````````diff
diff --git a/llvm/lib/Target/X86/X86FrameLowering.cpp b/llvm/lib/Target/X86/X86FrameLowering.cpp
index b7374558604ec..7e960c6420d3b 100644
--- a/llvm/lib/Target/X86/X86FrameLowering.cpp
+++ b/llvm/lib/Target/X86/X86FrameLowering.cpp
@@ -2431,7 +2431,8 @@ void X86FrameLowering::emitEpilogue(MachineFunction &MF,
   uint64_t NumBytes = 0;
 
   bool NeedsDwarfCFI = (!MF.getTarget().getTargetTriple().isOSDarwin() &&
-                        !MF.getTarget().getTargetTriple().isOSWindows()) &&
+                        !MF.getTarget().getTargetTriple().isOSWindows() &&
+                        !MF.getTarget().getTargetTriple().isUEFI()) &&
                        MF.needsFrameMoves();
 
   Register ArgBaseReg;

``````````

</details>


https://github.com/llvm/llvm-project/pull/138602