[llvm] Use masm for UEFI

[Prabhuk]

For UEFI targets use Microsoft masm.

[llvmbot]

@llvm/pr-subscribers-backend-x86

Author: Prabhuk (OOO till April 2nd Week) (Prabhuk)

Changes

For UEFI targets use Microsoft masm.

---

Full diff: https://github.com/llvm/llvm-project/pull/132461.diff

1 Files Affected:

• (modified) llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp (+1-1)

diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
index ad94e306f339e..9d86f8eb91506 100644
--- a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
+++ b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
@@ -444,7 +444,7 @@ static MCAsmInfo *createX86MCAsmInfo(const MCRegisterInfo &MRI,
     // Force the use of an ELF container.
     MAI = new X86ELFMCAsmInfo(TheTriple);
   } else if (TheTriple.isWindowsMSVCEnvironment() ||
-             TheTriple.isWindowsCoreCLREnvironment()) {
+             TheTriple.isWindowsCoreCLREnvironment() || TheTriple.isUEFI()) {
     if (Options.getAssemblyLanguage().equals_insensitive("masm"))
       MAI = new X86MCAsmInfoMicrosoftMASM(TheTriple);
     else