[clang] [OpenCL] Support for inline asm (PR #165214)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Hongyu Chen (XChy)

<details>
<summary>Changes</summary>

Currently, we don't support inline asm and asm goto in OpenCL. But it's a widely used feature in many scenarios. This patch enables the asm keyword to support it.

---
Full diff: https://github.com/llvm/llvm-project/pull/165214.diff


2 Files Affected:

- (modified) clang/include/clang/Basic/TokenKinds.def (+1-1) 
- (added) clang/test/SemaOpenCL/inline-asm.cl (+11) 


``````````diff
diff --git a/clang/include/clang/Basic/TokenKinds.def b/clang/include/clang/Basic/TokenKinds.def
index 564d6010181cc..532ef6d79b2d0 100644
--- a/clang/include/clang/Basic/TokenKinds.def
+++ b/clang/include/clang/Basic/TokenKinds.def
@@ -354,7 +354,7 @@ KEYWORD(__ptrauth                   , KEYALL)
 UNARY_EXPR_OR_TYPE_TRAIT(_Countof, CountOf, KEYNOCXX)
 
 // C++ 2.11p1: Keywords.
-KEYWORD(asm                         , KEYCXX|KEYGNU)
+KEYWORD(asm                         , KEYCXX|KEYGNU|KEYOPENCLC|KEYOPENCLCXX)
 KEYWORD(bool                        , BOOLSUPPORT|KEYC23)
 KEYWORD(catch                       , KEYCXX)
 KEYWORD(class                       , KEYCXX)
diff --git a/clang/test/SemaOpenCL/inline-asm.cl b/clang/test/SemaOpenCL/inline-asm.cl
new file mode 100644
index 0000000000000..2c402c66ef1d2
--- /dev/null
+++ b/clang/test/SemaOpenCL/inline-asm.cl
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL1.2
+// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=clc++
+
+// expected-no-diagnostics
+
+void test(void)
+{
+  asm("");
+loop:
+  asm goto(""::::loop);
+}

``````````

</details>


https://github.com/llvm/llvm-project/pull/165214