[llvm] [C API] Add bindings for DWARF type encoding.wq (PR #102171)

[via llvm-commits]

https://github.com/deadalnix created https://github.com/llvm/llvm-project/pull/102171

As per title, there is no API that provides the proper values for this.

>From 30c3f7e316c7ebaa35a3cee6f9618b2481ba0784 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Amaury=20S=C3=A9chet?= <deadalnix at gmail.com>
Date: Tue, 6 Aug 2024 15:29:18 +0000
Subject: [PATCH] [C API] Add bindings for DWARF type encoding.wq

---
 llvm/include/llvm-c/DebugInfo.h               | 24 ++++++++++++++++++-
 .../Bindings/llvm-c/debug_info_new_format.ll  |  2 +-
 llvm/tools/llvm-c-test/debuginfo.c            |  2 +-
 3 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/llvm/include/llvm-c/DebugInfo.h b/llvm/include/llvm-c/DebugInfo.h
index 6d8891e7057722..3ee5d9e045b44c 100644
--- a/llvm/include/llvm-c/DebugInfo.h
+++ b/llvm/include/llvm-c/DebugInfo.h
@@ -200,7 +200,29 @@ typedef unsigned LLVMMetadataKind;
 /**
  * An LLVM DWARF type encoding.
  */
-typedef unsigned LLVMDWARFTypeEncoding;
+typedef enum {
+  LVMDWARFAddressTypeEncoding = 0x01,
+  LVMDWARFBooleanTypeEncoding = 0x02,
+  LVMDWARFComplexFloatTypeEncoding = 0x03,
+  LVMDWARFFloatTypeEncoding = 0x04,
+  LVMDWARFSignedTypeEncoding = 0x05,
+  LVMDWARFSignedCharTypeEncoding = 0x06,
+  LVMDWARFUnsignedTypeEncoding = 0x07,
+  LVMDWARFUnsignedCharTypeEncoding = 0x08,
+  // New in DWARF v3:
+  LVMDWARFImmaginaryFloatTypeEncoding = 0x09,
+  LVMDWARFPackedDecimalTypeEncoding = 0x0a,
+  LVMDWARFNumericStringTypeEncoding = 0x0b,
+  LVMDWARFEditedTypeEncoding = 0x0c,
+  LVMDWARFSignedFixedTypeEncoding = 0x0d,
+  LVMDWARFUnsignedFixedTypeEncoding = 0x0e,
+  LVMDWARFDecimalFloatTypeEncoding = 0x0f,
+  // New in DWARF v4:
+  LVMDWARFUTFTypeEncoding = 0x10,
+  // New in DWARF v5:
+  LVMDWARFUCSTypeEncoding = 0x11,
+  LVMDWARFASCIITypeEncoding = 0x12,
+} LLVMDWARFTypeEncoding;
 
 /**
  * Describes the kind of macro declaration used for LLVMDIBuilderCreateMacro.
diff --git a/llvm/test/Bindings/llvm-c/debug_info_new_format.ll b/llvm/test/Bindings/llvm-c/debug_info_new_format.ll
index a9ba9d7ad05a70..658af9a0b6caee 100644
--- a/llvm/test/Bindings/llvm-c/debug_info_new_format.ll
+++ b/llvm/test/Bindings/llvm-c/debug_info_new_format.ll
@@ -28,7 +28,7 @@
 ; CHECK-NEXT: !3 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "EnumTest", scope: !4, file: !1, baseType: !6, size: 64, elements: !7)
 ; CHECK-NEXT: !4 = !DINamespace(name: "NameSpace", scope: !5)
 ; CHECK-NEXT: !5 = !DIModule(scope: null, name: "llvm-c-test", includePath: "/test/include/llvm-c-test.h")
-; CHECK-NEXT: !6 = !DIBasicType(name: "Int64", size: 64)
+; CHECK-NEXT: !6 = !DIBasicType(name: "Int64", size: 64, encoding: DW_ATE_signed)
 ; CHECK-NEXT: !7 = !{!8, !9, !10}
 ; CHECK-NEXT: !8 = !DIEnumerator(name: "Test_A", value: 0, isUnsigned: true)
 ; CHECK-NEXT: !9 = !DIEnumerator(name: "Test_B", value: 1, isUnsigned: true)
diff --git a/llvm/tools/llvm-c-test/debuginfo.c b/llvm/tools/llvm-c-test/debuginfo.c
index 49c90f5b87b83a..8658790e288388 100644
--- a/llvm/tools/llvm-c-test/debuginfo.c
+++ b/llvm/tools/llvm-c-test/debuginfo.c
@@ -71,7 +71,7 @@ int llvm_test_dibuilder(void) {
       GlobalClassValueExpr, NULL, 0);
 
   LLVMMetadataRef Int64Ty =
-      LLVMDIBuilderCreateBasicType(DIB, "Int64", 5, 64, 0, LLVMDIFlagZero);
+      LLVMDIBuilderCreateBasicType(DIB, "Int64", 5, 64, LVMDWARFSignedTypeEncoding, LLVMDIFlagZero);
   LLVMMetadataRef Int64TypeDef =
       LLVMDIBuilderCreateTypedef(DIB, Int64Ty, "int64_t", 7, File, 42, File, 0);