Author: Henrich Lauko
Date: 2026-09-04T14:18:08+02:00
New Revision: dc6b4e11f136a04699daab6bb19680e7ba6ca427

URL: 
https://github.com/llvm/llvm-project/commit/dc6b4e11f136a04699daab6bb19680e7ba6ca427
DIFF: 
https://github.com/llvm/llvm-project/commit/dc6b4e11f136a04699daab6bb19680e7ba6ca427.diff

LOG: [CIR] Drop lang_address_space's custom parenthesized attribute format 
(#220880)

CIR_LangAddressSpaceAttr overrode its assembly format to
`(` custom<AddressSpaceValue>($value) `)`. The parentheses defeated the
dialect's `#cir.mnemonic<...>` syntax, so the attribute printed as
`#cir<lang_address_space(offload_global)>`. It now uses the bracketed
CIR_EnumAttr default and spells
`#cir.lang_address_space<offload_global>`.

The `lang_address_space(x)` spelling inside `!cir.ptr` and `cir.global`
is
unaffected, since that goes through MemorySpaceAttrInterface in
CIRTypes.cpp.
The attribute-level pair in CIRAttrs.cpp was only reachable from the
deleted
format, so it goes away.

Added: 
    

Modified: 
    clang/include/clang/CIR/Dialect/IR/CIRAttrs.td
    clang/include/clang/CIR/Dialect/IR/CIROps.td
    clang/include/clang/CIR/Dialect/IR/CIRTypes.td
    clang/lib/CIR/Dialect/IR/CIRAttrs.cpp
    clang/lib/CIR/Dialect/IR/CIRDialect.cpp
    clang/lib/CIR/Dialect/IR/CIRTypes.cpp
    clang/test/CIR/CodeGenOpenCL/kernel-arg-info-single-as.cl
    clang/test/CIR/CodeGenOpenCL/kernel-arg-info.cl
    clang/test/CIR/IR/invalid-opencl-kernel-arg-metadata.cir
    clang/test/CIR/IR/opencl-kernel-arg-metadata.cir
    clang/test/CIR/Lowering/opencl-kernel-arg-metadata.cir

Removed: 
    


################################################################################
diff  --git a/clang/include/clang/CIR/Dialect/IR/CIRAttrs.td 
b/clang/include/clang/CIR/Dialect/IR/CIRAttrs.td
index 31c934b16d898..6a82b5d4b04d1 100644
--- a/clang/include/clang/CIR/Dialect/IR/CIRAttrs.td
+++ b/clang/include/clang/CIR/Dialect/IR/CIRAttrs.td
@@ -1208,10 +1208,6 @@ def CIR_LangAddressSpaceAttr : 
CIR_EnumAttr<CIR_LangAddressSpace,
     }]>
   ];
 
-  let assemblyFormat = [{
-    `(` custom<AddressSpaceValue>($value) `)`
-  }];
-
   let defaultValue = "cir::LangAddressSpace::Default";
 
   let extraClassDeclaration = [{

diff  --git a/clang/include/clang/CIR/Dialect/IR/CIROps.td 
b/clang/include/clang/CIR/Dialect/IR/CIROps.td
index 8ccd086a146fb..5c2c948742f08 100644
--- a/clang/include/clang/CIR/Dialect/IR/CIROps.td
+++ b/clang/include/clang/CIR/Dialect/IR/CIROps.td
@@ -3406,7 +3406,7 @@ def CIR_GlobalOp : CIR_Op<"global", [
     (`tls_refs` `=` $tls_refs^)?
     (`dso_local` $dso_local^)?
     (`static_local_guard` `` $static_local_guard^)?
-    (` ` custom<GlobalAddressSpaceValue>($addr_space)^ )?
+    (` ` custom<GlobalMemorySpace>($addr_space)^ )?
     $sym_name
     (`alias` `(` $aliasee^ `)`)?
     custom<GlobalOpTypeAndInitialValue>($sym_type, $initial_value,

diff  --git a/clang/include/clang/CIR/Dialect/IR/CIRTypes.td 
b/clang/include/clang/CIR/Dialect/IR/CIRTypes.td
index b004f3f202987..a690473a0538b 100644
--- a/clang/include/clang/CIR/Dialect/IR/CIRTypes.td
+++ b/clang/include/clang/CIR/Dialect/IR/CIRTypes.td
@@ -305,7 +305,7 @@ def CIR_PointerType : CIR_Type<"Pointer", "ptr", [
   let assemblyFormat = [{
     `<`
       $pointee
-      ( `,` ` ` custom<AddressSpaceValue>($addrSpace)^ )?
+      ( `,` ` ` custom<MemorySpace>($addrSpace)^ )?
     `>`
   }];
 

diff  --git a/clang/lib/CIR/Dialect/IR/CIRAttrs.cpp 
b/clang/lib/CIR/Dialect/IR/CIRAttrs.cpp
index 99da5044751f0..4bb1ce0e02a22 100644
--- a/clang/lib/CIR/Dialect/IR/CIRAttrs.cpp
+++ b/clang/lib/CIR/Dialect/IR/CIRAttrs.cpp
@@ -45,26 +45,6 @@ parseFloatLiteral(mlir::AsmParser &parser,
                   mlir::FailureOr<llvm::APFloat> &value,
                   cir::FPTypeInterface fpType);
 
-//===----------------------------------------------------------------------===//
-// AddressSpaceAttr
-//===----------------------------------------------------------------------===//
-
-mlir::ParseResult parseAddressSpaceValue(mlir::AsmParser &p,
-                                         cir::LangAddressSpace &addrSpace) {
-  llvm::SMLoc loc = p.getCurrentLocation();
-  mlir::FailureOr<cir::LangAddressSpace> result =
-      mlir::FieldParser<cir::LangAddressSpace>::parse(p);
-  if (mlir::failed(result))
-    return p.emitError(loc, "expected address space keyword");
-  addrSpace = result.value();
-  return mlir::success();
-}
-
-void printAddressSpaceValue(mlir::AsmPrinter &p,
-                            cir::LangAddressSpace addrSpace) {
-  p << cir::stringifyEnum(addrSpace);
-}
-
 static mlir::ParseResult parseConstPtr(mlir::AsmParser &parser,
                                        mlir::IntegerAttr &value);
 

diff  --git a/clang/lib/CIR/Dialect/IR/CIRDialect.cpp 
b/clang/lib/CIR/Dialect/IR/CIRDialect.cpp
index ab5791548262e..c3838413984a6 100644
--- a/clang/lib/CIR/Dialect/IR/CIRDialect.cpp
+++ b/clang/lib/CIR/Dialect/IR/CIRDialect.cpp
@@ -282,11 +282,11 @@ static void 
printOmittedTerminatorRegion(mlir::OpAsmPrinter &printer,
 }
 
 mlir::OptionalParseResult
-parseGlobalAddressSpaceValue(mlir::AsmParser &p,
-                             mlir::ptr::MemorySpaceAttrInterface &attr);
+parseGlobalMemorySpace(mlir::AsmParser &p,
+                       mlir::ptr::MemorySpaceAttrInterface &attr);
 
-void printGlobalAddressSpaceValue(mlir::AsmPrinter &printer, cir::GlobalOp op,
-                                  mlir::ptr::MemorySpaceAttrInterface attr);
+void printGlobalMemorySpace(mlir::AsmPrinter &printer, cir::GlobalOp op,
+                            mlir::ptr::MemorySpaceAttrInterface attr);
 
 
//===----------------------------------------------------------------------===//
 // AllocaOp

diff  --git a/clang/lib/CIR/Dialect/IR/CIRTypes.cpp 
b/clang/lib/CIR/Dialect/IR/CIRTypes.cpp
index 897063171e76a..00ccdfd59192c 100644
--- a/clang/lib/CIR/Dialect/IR/CIRTypes.cpp
+++ b/clang/lib/CIR/Dialect/IR/CIRTypes.cpp
@@ -99,19 +99,13 @@ static void printFuncTypeParams(mlir::AsmPrinter &p,
 // AddressSpace
 
//===----------------------------------------------------------------------===//
 
-mlir::ParseResult
-parseAddressSpaceValue(mlir::AsmParser &p,
-                       mlir::ptr::MemorySpaceAttrInterface &attr);
+// Spells the address space of `!cir.ptr` and `cir.global` as either
+// `lang_address_space(x)` or `target_address_space(n)`.
+mlir::ParseResult parseMemorySpace(mlir::AsmParser &p,
+                                   mlir::ptr::MemorySpaceAttrInterface &attr);
 
-void printAddressSpaceValue(mlir::AsmPrinter &printer,
-                            mlir::ptr::MemorySpaceAttrInterface attr);
-
-// Custom parser/printer for the `addrSpace` parameter in `!cir.ptr`.
-mlir::ParseResult parseTargetAddressSpace(mlir::AsmParser &p,
-                                          cir::TargetAddressSpaceAttr &attr);
-
-void printTargetAddressSpace(mlir::AsmPrinter &p,
-                             cir::TargetAddressSpaceAttr attr);
+void printMemorySpace(mlir::AsmPrinter &printer,
+                      mlir::ptr::MemorySpaceAttrInterface attr);
 
 
//===----------------------------------------------------------------------===//
 // Get autogenerated stuff
@@ -1568,9 +1562,8 @@ cir::LangAddressSpace 
cir::toCIRLangAddressSpace(clang::LangAS langAS) {
   }
 }
 
-mlir::ParseResult
-parseAddressSpaceValue(mlir::AsmParser &p,
-                       mlir::ptr::MemorySpaceAttrInterface &attr) {
+mlir::ParseResult parseMemorySpace(mlir::AsmParser &p,
+                                   mlir::ptr::MemorySpaceAttrInterface &attr) {
 
   llvm::SMLoc loc = p.getCurrentLocation();
 
@@ -1617,8 +1610,8 @@ parseAddressSpaceValue(mlir::AsmParser &p,
   return mlir::success();
 }
 
-void printAddressSpaceValue(mlir::AsmPrinter &p,
-                            mlir::ptr::MemorySpaceAttrInterface attr) {
+void printMemorySpace(mlir::AsmPrinter &p,
+                      mlir::ptr::MemorySpaceAttrInterface attr) {
   if (!attr)
     return;
 
@@ -1637,18 +1630,18 @@ void printAddressSpaceValue(mlir::AsmPrinter &p,
 }
 
 mlir::OptionalParseResult
-parseGlobalAddressSpaceValue(mlir::AsmParser &p,
-                             mlir::ptr::MemorySpaceAttrInterface &attr) {
+parseGlobalMemorySpace(mlir::AsmParser &p,
+                       mlir::ptr::MemorySpaceAttrInterface &attr) {
 
   mlir::SMLoc loc = p.getCurrentLocation();
-  if (parseAddressSpaceValue(p, attr).failed())
+  if (parseMemorySpace(p, attr).failed())
     return p.emitError(loc, "failed to parse Address Space Value for 
GlobalOp");
   return mlir::success();
 }
 
-void printGlobalAddressSpaceValue(mlir::AsmPrinter &printer, cir::GlobalOp,
-                                  mlir::ptr::MemorySpaceAttrInterface attr) {
-  printAddressSpaceValue(printer, attr);
+void printGlobalMemorySpace(mlir::AsmPrinter &printer, cir::GlobalOp,
+                            mlir::ptr::MemorySpaceAttrInterface attr) {
+  printMemorySpace(printer, attr);
 }
 
 mlir::ptr::MemorySpaceAttrInterface cir::normalizeDefaultAddressSpace(

diff  --git a/clang/test/CIR/CodeGenOpenCL/kernel-arg-info-single-as.cl 
b/clang/test/CIR/CodeGenOpenCL/kernel-arg-info-single-as.cl
index c60c36dc61c89..bcdbf8b6e6038 100644
--- a/clang/test/CIR/CodeGenOpenCL/kernel-arg-info-single-as.cl
+++ b/clang/test/CIR/CodeGenOpenCL/kernel-arg-info-single-as.cl
@@ -13,7 +13,7 @@ kernel void spir_addr_space_kernel_args(__global int *G, 
__constant int *C,
 }
 
 // CIR-LABEL: cir.func{{.*}} @spir_addr_space_kernel_args
-// CIR-SAME: cir.cl.kernel_arg_metadata = 
#cir.cl.kernel_arg_metadata<addr_space = 
[#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_constant)>, 
#cir<lang_address_space(offload_local)>]
+// CIR-SAME: cir.cl.kernel_arg_metadata = 
#cir.cl.kernel_arg_metadata<addr_space = 
[#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_constant>, 
#cir.lang_address_space<offload_local>]
 
 // LLVM-DAG: define{{.*}} void @spir_addr_space_kernel_args{{.*}} 
!kernel_arg_addr_space ![[ADDR_SPACES:[0-9]+]]
 // LLVM-DAG: ![[ADDR_SPACES]] = !{i32 1, i32 2, i32 3}
@@ -23,7 +23,7 @@ kernel void global_device_host_kernel_args(
     __attribute__((opencl_global_host)) int *H) {}
 
 // CIR-LABEL: cir.func{{.*}} @global_device_host_kernel_args
-// CIR-SAME: cir.cl.kernel_arg_metadata = 
#cir.cl.kernel_arg_metadata<addr_space = 
[#cir<lang_address_space(offload_global_device)>, 
#cir<lang_address_space(offload_global_host)>]
+// CIR-SAME: cir.cl.kernel_arg_metadata = 
#cir.cl.kernel_arg_metadata<addr_space = 
[#cir.lang_address_space<offload_global_device>, 
#cir.lang_address_space<offload_global_host>]
 
 // LLVM-DAG: define{{.*}} void @global_device_host_kernel_args{{.*}} 
!kernel_arg_addr_space ![[GLOBAL_DEVICE_HOST_ADDR_SPACES:[0-9]+]]
 // LLVM-DAG: ![[GLOBAL_DEVICE_HOST_ADDR_SPACES]] = !{i32 5, i32 6}
@@ -35,7 +35,7 @@ kernel void target_address_space_kernel_arg(
 
 // CIR-LABEL: cir.func{{.*}} @target_address_space_kernel_arg
 // CIR-SAME: !cir.ptr<!s32i, target_address_space(5)>
-// CIR-SAME: cir.cl.kernel_arg_metadata = 
#cir.cl.kernel_arg_metadata<addr_space = [#cir<lang_address_space(default)>]
+// CIR-SAME: cir.cl.kernel_arg_metadata = 
#cir.cl.kernel_arg_metadata<addr_space = [#cir.lang_address_space<default>]
 
 // LLVM-DAG: define{{.*}} void @target_address_space_kernel_arg{{.*}}ptr 
addrspace(5){{.*}} !kernel_arg_addr_space ![[TARGET_ADDR_SPACE:[0-9]+]]
 // LLVM-DAG: ![[TARGET_ADDR_SPACE]] = !{i32 0}

diff  --git a/clang/test/CIR/CodeGenOpenCL/kernel-arg-info.cl 
b/clang/test/CIR/CodeGenOpenCL/kernel-arg-info.cl
index a00bfec52b122..a3cd52517590b 100644
--- a/clang/test/CIR/CodeGenOpenCL/kernel-arg-info.cl
+++ b/clang/test/CIR/CodeGenOpenCL/kernel-arg-info.cl
@@ -28,14 +28,14 @@ kernel void global_qualifier_kernel_args(
 
 // CIR-LABEL: cir.func{{.*}} @global_qualifier_kernel_args
 // CIR-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-SAME: addr_space = [#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>]
+// CIR-SAME: addr_space = [#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>]
 // CIR-SAME: access_qual = ["none", "none", "none", "none", "none", "none", 
"none", "none"]
 // CIR-SAME: type = ["int*", "int*", "int*", "int*", "int*", "int*", "int*", 
"int*"]
 // CIR-SAME: base_type = ["int*", "int*", "int*", "int*", "int*", "int*", 
"int*", "int*"]
 // CIR-SAME: type_qual = ["", "restrict", "const", "restrict const", "const 
volatile", "restrict const volatile", "volatile", "restrict volatile"]
 // CIR-ARGINFO-LABEL: cir.func{{.*}} @global_qualifier_kernel_args
 // CIR-ARGINFO-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-ARGINFO-SAME: addr_space = [#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>]
+// CIR-ARGINFO-SAME: addr_space = [#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>]
 // CIR-ARGINFO-SAME: access_qual = ["none", "none", "none", "none", "none", 
"none", "none", "none"]
 // CIR-ARGINFO-SAME: type = ["int*", "int*", "int*", "int*", "int*", "int*", 
"int*", "int*"]
 // CIR-ARGINFO-SAME: base_type = ["int*", "int*", "int*", "int*", "int*", 
"int*", "int*", "int*"]
@@ -57,14 +57,14 @@ kernel void constant_kernel_args(constant int *constantintp,
 
 // CIR-LABEL: cir.func{{.*}} @constant_kernel_args
 // CIR-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-SAME: addr_space = [#cir<lang_address_space(offload_constant)>, 
#cir<lang_address_space(offload_constant)>]
+// CIR-SAME: addr_space = [#cir.lang_address_space<offload_constant>, 
#cir.lang_address_space<offload_constant>]
 // CIR-SAME: access_qual = ["none", "none"]
 // CIR-SAME: type = ["int*", "int*"]
 // CIR-SAME: base_type = ["int*", "int*"]
 // CIR-SAME: type_qual = ["const", "restrict const"]
 // CIR-ARGINFO-LABEL: cir.func{{.*}} @constant_kernel_args
 // CIR-ARGINFO-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-ARGINFO-SAME: addr_space = [#cir<lang_address_space(offload_constant)>, 
#cir<lang_address_space(offload_constant)>]
+// CIR-ARGINFO-SAME: addr_space = [#cir.lang_address_space<offload_constant>, 
#cir.lang_address_space<offload_constant>]
 // CIR-ARGINFO-SAME: access_qual = ["none", "none"]
 // CIR-ARGINFO-SAME: type = ["int*", "int*"]
 // CIR-ARGINFO-SAME: base_type = ["int*", "int*"]
@@ -90,14 +90,14 @@ kernel void local_qualifier_kernel_args(
 
 // CIR-LABEL: cir.func{{.*}} @local_qualifier_kernel_args
 // CIR-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-SAME: addr_space = [#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>]
+// CIR-SAME: addr_space = [#cir.lang_address_space<offload_local>, 
#cir.lang_address_space<offload_local>, #cir.lang_address_space<offload_local>, 
#cir.lang_address_space<offload_local>, #cir.lang_address_space<offload_local>, 
#cir.lang_address_space<offload_local>, #cir.lang_address_space<offload_local>, 
#cir.lang_address_space<offload_local>]
 // CIR-SAME: access_qual = ["none", "none", "none", "none", "none", "none", 
"none", "none"]
 // CIR-SAME: type = ["int*", "int*", "int*", "int*", "int*", "int*", "int*", 
"int*"]
 // CIR-SAME: base_type = ["int*", "int*", "int*", "int*", "int*", "int*", 
"int*", "int*"]
 // CIR-SAME: type_qual = ["", "restrict", "const", "restrict const", "const 
volatile", "restrict const volatile", "volatile", "restrict volatile"]
 // CIR-ARGINFO-LABEL: cir.func{{.*}} @local_qualifier_kernel_args
 // CIR-ARGINFO-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-ARGINFO-SAME: addr_space = [#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>, 
#cir<lang_address_space(offload_local)>]
+// CIR-ARGINFO-SAME: addr_space = [#cir.lang_address_space<offload_local>, 
#cir.lang_address_space<offload_local>, #cir.lang_address_space<offload_local>, 
#cir.lang_address_space<offload_local>, #cir.lang_address_space<offload_local>, 
#cir.lang_address_space<offload_local>, #cir.lang_address_space<offload_local>, 
#cir.lang_address_space<offload_local>]
 // CIR-ARGINFO-SAME: access_qual = ["none", "none", "none", "none", "none", 
"none", "none", "none"]
 // CIR-ARGINFO-SAME: type = ["int*", "int*", "int*", "int*", "int*", "int*", 
"int*", "int*"]
 // CIR-ARGINFO-SAME: base_type = ["int*", "int*", "int*", "int*", "int*", 
"int*", "int*", "int*"]
@@ -115,14 +115,14 @@ kernel void private_qualifier_kernel_args(int X, const 
int constint,
 
 // CIR-LABEL: cir.func{{.*}} @private_qualifier_kernel_args
 // CIR-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-SAME: addr_space = [#cir<lang_address_space(default)>, 
#cir<lang_address_space(default)>, #cir<lang_address_space(default)>, 
#cir<lang_address_space(default)>]
+// CIR-SAME: addr_space = [#cir.lang_address_space<default>, 
#cir.lang_address_space<default>, #cir.lang_address_space<default>, 
#cir.lang_address_space<default>]
 // CIR-SAME: access_qual = ["none", "none", "none", "none"]
 // CIR-SAME: type = ["int", "int", "int", "int"]
 // CIR-SAME: base_type = ["int", "int", "int", "int"]
 // CIR-SAME: type_qual = ["", "", "", ""]
 // CIR-ARGINFO-LABEL: cir.func{{.*}} @private_qualifier_kernel_args
 // CIR-ARGINFO-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-ARGINFO-SAME: addr_space = [#cir<lang_address_space(default)>, 
#cir<lang_address_space(default)>, #cir<lang_address_space(default)>, 
#cir<lang_address_space(default)>]
+// CIR-ARGINFO-SAME: addr_space = [#cir.lang_address_space<default>, 
#cir.lang_address_space<default>, #cir.lang_address_space<default>, 
#cir.lang_address_space<default>]
 // CIR-ARGINFO-SAME: access_qual = ["none", "none", "none", "none"]
 // CIR-ARGINFO-SAME: type = ["int", "int", "int", "int"]
 // CIR-ARGINFO-SAME: base_type = ["int", "int", "int", "int"]
@@ -143,14 +143,14 @@ kernel void typedef_kernel_args(__global unsigned int *X,
 
 // CIR-LABEL: cir.func{{.*}} @typedef_kernel_args
 // CIR-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-SAME: addr_space = [#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>]
+// CIR-SAME: addr_space = [#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>]
 // CIR-SAME: access_qual = ["none", "none"]
 // CIR-SAME: type = ["uint*", "myunsignedint*"]
 // CIR-SAME: base_type = ["uint*", "uint*"]
 // CIR-SAME: type_qual = ["", ""]
 // CIR-ARGINFO-LABEL: cir.func{{.*}} @typedef_kernel_args
 // CIR-ARGINFO-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-ARGINFO-SAME: addr_space = [#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(offload_global)>]
+// CIR-ARGINFO-SAME: addr_space = [#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<offload_global>]
 // CIR-ARGINFO-SAME: access_qual = ["none", "none"]
 // CIR-ARGINFO-SAME: type = ["uint*", "myunsignedint*"]
 // CIR-ARGINFO-SAME: base_type = ["uint*", "uint*"]
@@ -170,14 +170,14 @@ __kernel void vector_typedef_kernel_arg(__global char16 
arg[]) {}
 
 // CIR-LABEL: cir.func{{.*}} @vector_typedef_kernel_arg
 // CIR-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-SAME: addr_space = [#cir<lang_address_space(offload_global)>]
+// CIR-SAME: addr_space = [#cir.lang_address_space<offload_global>]
 // CIR-SAME: access_qual = ["none"]
 // CIR-SAME: type = ["char16*"]
 // CIR-SAME: base_type = ["char __attribute__((ext_vector_type(16)))*"]
 // CIR-SAME: type_qual = [""]
 // CIR-ARGINFO-LABEL: cir.func{{.*}} @vector_typedef_kernel_arg
 // CIR-ARGINFO-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-ARGINFO-SAME: addr_space = [#cir<lang_address_space(offload_global)>]
+// CIR-ARGINFO-SAME: addr_space = [#cir.lang_address_space<offload_global>]
 // CIR-ARGINFO-SAME: access_qual = ["none"]
 // CIR-ARGINFO-SAME: type = ["char16*"]
 // CIR-ARGINFO-SAME: base_type = ["char __attribute__((ext_vector_type(16)))*"]
@@ -198,14 +198,14 @@ kernel void signed_char_kernel_args(signed char sc1,
 
 // CIR-LABEL: cir.func{{.*}} @signed_char_kernel_args
 // CIR-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-SAME: addr_space = [#cir<lang_address_space(default)>, 
#cir<lang_address_space(offload_global)>]
+// CIR-SAME: addr_space = [#cir.lang_address_space<default>, 
#cir.lang_address_space<offload_global>]
 // CIR-SAME: access_qual = ["none", "none"]
 // CIR-SAME: type = ["char", "char*"]
 // CIR-SAME: base_type = ["char", "char*"]
 // CIR-SAME: type_qual = ["", "const"]
 // CIR-ARGINFO-LABEL: cir.func{{.*}} @signed_char_kernel_args
 // CIR-ARGINFO-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CIR-ARGINFO-SAME: addr_space = [#cir<lang_address_space(default)>, 
#cir<lang_address_space(offload_global)>]
+// CIR-ARGINFO-SAME: addr_space = [#cir.lang_address_space<default>, 
#cir.lang_address_space<offload_global>]
 // CIR-ARGINFO-SAME: access_qual = ["none", "none"]
 // CIR-ARGINFO-SAME: type = ["char", "char*"]
 // CIR-ARGINFO-SAME: base_type = ["char", "char*"]

diff  --git a/clang/test/CIR/IR/invalid-opencl-kernel-arg-metadata.cir 
b/clang/test/CIR/IR/invalid-opencl-kernel-arg-metadata.cir
index 536187fbbde7d..27c6da3e17fe6 100644
--- a/clang/test/CIR/IR/invalid-opencl-kernel-arg-metadata.cir
+++ b/clang/test/CIR/IR/invalid-opencl-kernel-arg-metadata.cir
@@ -13,7 +13,7 @@
 
 // expected-error @below {{failed to verify 'access_qual': string array 
attribute}}
 #attr = #cir.cl.kernel_arg_metadata<
-  addr_space = [#cir<lang_address_space(default)>],
+  addr_space = [#cir.lang_address_space<default>],
   access_qual = [42 : i32],
   type = ["uint*"],
   base_type = ["uint*"],
@@ -24,7 +24,7 @@
 
 // expected-error @below {{failed to verify 'type': string array attribute}}
 #attr = #cir.cl.kernel_arg_metadata<
-  addr_space = [#cir<lang_address_space(default)>],
+  addr_space = [#cir.lang_address_space<default>],
   access_qual = ["none"],
   type = [42 : i32],
   base_type = ["uint*"],
@@ -35,7 +35,7 @@
 
 // expected-error @below {{failed to verify 'base_type': string array 
attribute}}
 #attr = #cir.cl.kernel_arg_metadata<
-  addr_space = [#cir<lang_address_space(default)>],
+  addr_space = [#cir.lang_address_space<default>],
   access_qual = ["none"],
   type = ["uint*"],
   base_type = [42 : i32],
@@ -46,7 +46,7 @@
 
 // expected-error @below {{failed to verify 'type_qual': string array 
attribute}}
 #attr = #cir.cl.kernel_arg_metadata<
-  addr_space = [#cir<lang_address_space(default)>],
+  addr_space = [#cir.lang_address_space<default>],
   access_qual = ["none"],
   type = ["uint*"],
   base_type = ["uint*"],
@@ -57,7 +57,7 @@
 
 // expected-error @below {{failed to verify 'name': string array attribute or 
null}}
 #attr = #cir.cl.kernel_arg_metadata<
-  addr_space = [#cir<lang_address_space(default)>],
+  addr_space = [#cir.lang_address_space<default>],
   access_qual = ["none"],
   type = ["uint*"],
   base_type = ["uint*"],
@@ -69,7 +69,7 @@
 
 // expected-error @below {{all arrays must have the same number of elements}}
 #attr = #cir.cl.kernel_arg_metadata<
-  addr_space = [#cir<lang_address_space(default)>],
+  addr_space = [#cir.lang_address_space<default>],
   access_qual = ["none"],
   type = ["uint*", "myunsignedint*"],
   base_type = ["uint*", "uint*"],

diff  --git a/clang/test/CIR/IR/opencl-kernel-arg-metadata.cir 
b/clang/test/CIR/IR/opencl-kernel-arg-metadata.cir
index 12899dad8f80c..fb6aa92758376 100644
--- a/clang/test/CIR/IR/opencl-kernel-arg-metadata.cir
+++ b/clang/test/CIR/IR/opencl-kernel-arg-metadata.cir
@@ -6,7 +6,7 @@
 module {
   cir.func @without_names(%arg0: !cir.ptr<!u32i, 
lang_address_space(offload_global)>, %arg1: !s32i) attributes {
     cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata<
-      addr_space = [#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(default)>],
+      addr_space = [#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<default>],
       access_qual = ["none", "none"],
       type = ["uint*", "int"],
       base_type = ["uint*", "int"],
@@ -18,7 +18,7 @@ module {
 
   cir.func @with_names(%data: !cir.ptr<!u32i, 
lang_address_space(offload_global)>, %count: !s32i) attributes {
     cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata<
-      addr_space = [#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(default)>],
+      addr_space = [#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<default>],
       access_qual = ["none", "none"],
       type = ["uint*", "int"],
       base_type = ["uint*", "int"],
@@ -46,7 +46,7 @@ module {
 // CHECK-SAME: %{{.*}}: !cir.ptr<!u32i, lang_address_space(offload_global)>
 // CHECK-SAME: %{{.*}}: !s32i
 // CHECK-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CHECK-SAME: addr_space = [#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(default)>]
+// CHECK-SAME: addr_space = [#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<default>]
 // CHECK-SAME: type = ["uint*", "int"]
 // CHECK-SAME: base_type = ["uint*", "int"]
 // CHECK-SAME: type_qual = ["restrict", ""]
@@ -56,7 +56,7 @@ module {
 // CHECK-SAME: %{{.*}}: !cir.ptr<!u32i, lang_address_space(offload_global)>
 // CHECK-SAME: %{{.*}}: !s32i
 // CHECK-SAME: cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata
-// CHECK-SAME: addr_space = [#cir<lang_address_space(offload_global)>, 
#cir<lang_address_space(default)>]
+// CHECK-SAME: addr_space = [#cir.lang_address_space<offload_global>, 
#cir.lang_address_space<default>]
 // CHECK-SAME: type = ["uint*", "int"]
 // CHECK-SAME: base_type = ["uint*", "int"]
 // CHECK-SAME: type_qual = ["restrict", ""]

diff  --git a/clang/test/CIR/Lowering/opencl-kernel-arg-metadata.cir 
b/clang/test/CIR/Lowering/opencl-kernel-arg-metadata.cir
index 11541fde880cf..541953a6bc606 100644
--- a/clang/test/CIR/Lowering/opencl-kernel-arg-metadata.cir
+++ b/clang/test/CIR/Lowering/opencl-kernel-arg-metadata.cir
@@ -1,13 +1,13 @@
 // RUN: cir-opt %s -cir-to-llvm -o - | FileCheck %s --check-prefix=MLIR
 
 module attributes {cir.triple = "x86_64-unknown-linux-gnu"} {
-  cir.func @opencl_kernel_with_names() attributes {cir.cl.kernel_arg_metadata 
= #cir.cl.kernel_arg_metadata<addr_space = 
[#cir<lang_address_space(offload_global)>, #cir<lang_address_space(default)>], 
access_qual = ["none", "none"], type = ["uint*", "int"], base_type = ["uint*", 
"int"], type_qual = ["restrict", ""], name = ["data", "count"]>} {
+  cir.func @opencl_kernel_with_names() attributes {cir.cl.kernel_arg_metadata 
= #cir.cl.kernel_arg_metadata<addr_space = 
[#cir.lang_address_space<offload_global>, #cir.lang_address_space<default>], 
access_qual = ["none", "none"], type = ["uint*", "int"], base_type = ["uint*", 
"int"], type_qual = ["restrict", ""], name = ["data", "count"]>} {
     cir.return
   }
   cir.func @opencl_target() {
     cir.return
   }
-  cir.func @opencl_alias() alias(@opencl_target) attributes 
{cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata<addr_space = 
[#cir<lang_address_space(offload_global)>], access_qual = ["none"], type = 
["uint*"], base_type = ["uint*"], type_qual = [""]>}
+  cir.func @opencl_alias() alias(@opencl_target) attributes 
{cir.cl.kernel_arg_metadata = #cir.cl.kernel_arg_metadata<addr_space = 
[#cir.lang_address_space<offload_global>], access_qual = ["none"], type = 
["uint*"], base_type = ["uint*"], type_qual = [""]>}
 }
 
 // MLIR-LABEL: llvm.func @opencl_kernel_with_names()


        
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