[llvm][AsmPrinter] CodeView for UEFI

[Prabhuk]

Use CodeView debug format for UEFI targets.

[petrhosek]

Would it be possible to include a test?

[llvmbot]

@llvm/pr-subscribers-debuginfo

Author: Prabhu Rajasekaran (Prabhuk)

Changes

Use CodeView debug format for UEFI targets.

---

Full diff: https://github.com/llvm/llvm-project/pull/138359.diff

2 Files Affected:

• (modified) llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp (+2-1)
• (modified) llvm/test/DebugInfo/COFF/asm.ll (+2)

diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index bdcd54a135da9..96d4d8acb373e 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -560,7 +560,8 @@ bool AsmPrinter::doInitialization(Module &M) {
 
   if (MAI->doesSupportDebugInformation()) {
     bool EmitCodeView = M.getCodeViewFlag();
-    if (EmitCodeView && TM.getTargetTriple().isOSWindows())
+    if (EmitCodeView &&
+        (TM.getTargetTriple().isOSWindows() || TM.getTargetTriple().isUEFI()))
       Handlers.push_back(std::make_unique<CodeViewDebug>(this));
     if (!EmitCodeView || M.getDwarfVersion()) {
       if (hasDebugInfo()) {
diff --git a/llvm/test/DebugInfo/COFF/asm.ll b/llvm/test/DebugInfo/COFF/asm.ll
index d873df26bf718..cf440bd75fa34 100644
--- a/llvm/test/DebugInfo/COFF/asm.ll
+++ b/llvm/test/DebugInfo/COFF/asm.ll
@@ -2,6 +2,8 @@
 ; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 -o - -O0 < %s | llvm-mc -triple=i686-pc-win32 -filetype=obj | llvm-readobj -S --sr --codeview - | FileCheck --check-prefix=OBJ32 %s
 ; RUN: llc -mcpu=core2 -mtriple=x86_64-pc-win32 -O0 < %s | FileCheck --check-prefix=X64 %s
 ; RUN: llc -mcpu=core2 -mtriple=x86_64-pc-win32 -o - -O0 < %s | llvm-mc -triple=x86_64-pc-win32 -filetype=obj | llvm-readobj -S --sr --codeview - | FileCheck --check-prefix=OBJ64 %s
+; RUN: llc -mcpu=core2 -mtriple=x86_64-uefi -O0 < %s | FileCheck --check-prefix=X64 %s
+; RUN: llc -mcpu=core2 -mtriple=x86_64-uefi -o - -O0 < %s | llvm-mc -triple=x86_64-pc-win32 -filetype=obj | llvm-readobj -S --sr --codeview - | FileCheck --check-prefix=OBJ64 %s
 
 ; This LL file was generated by running clang on the following code:
 ; D:\asm.c:

[Prabhuk]

Added test for UEFI codeview support.