[clang] [clang] Add GCC-compatible code model names for sparc64 (PR #79485)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-driver

Author: Koakuma (koachan)

<details>
<summary>Changes</summary>

This adds GCC-compatible names for code model selection on 64-bit SPARC with absolute code.

(32-bit target does not have selectable code models)

---
Full diff: https://github.com/llvm/llvm-project/pull/79485.diff


2 Files Affected:

- (modified) clang/lib/Driver/ToolChains/Clang.cpp (+8) 
- (added) clang/test/Driver/sparc64-codemodel.c (+6) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 5dc614e11aab599..f3d624fb5489e06 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -5779,6 +5779,14 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
       // NVPTX/AMDGPU does not care about the code model and will accept
       // whatever works for the host.
       Ok = true;
+    } else if (Triple.isSPARC64()) {
+      if (CM == "medlow")
+        CM = "small";
+      else if (CM == "medmid")
+        CM = "medium";
+      else if (CM == "medany")
+        CM = "large";
+      Ok = CM == "small" || CM == "medium" || CM == "large";
     }
     if (Ok) {
       CmdArgs.push_back(Args.MakeArgString("-mcmodel=" + CM));
diff --git a/clang/test/Driver/sparc64-codemodel.c b/clang/test/Driver/sparc64-codemodel.c
new file mode 100644
index 000000000000000..e4b01fd61b6fac2
--- /dev/null
+++ b/clang/test/Driver/sparc64-codemodel.c
@@ -0,0 +1,6 @@
+// RUN: %clang --target=sparc64 -mcmodel=medlow %s -### 2>&1 | FileCheck -check-prefix=MEDLOW %s
+// RUN: %clang --target=sparc64 -mcmodel=medmid %s -### 2>&1 | FileCheck -check-prefix=MEDMID %s
+// RUN: %clang --target=sparc64 -mcmodel=medany %s -### 2>&1 | FileCheck -check-prefix=MEDANY %s
+// MEDLOW: "-mcmodel=small"
+// MEDMID: "-mcmodel=medium"
+// MEDANY: "-mcmodel=large"

``````````

</details>


https://github.com/llvm/llvm-project/pull/79485