llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-driver

Author: Rohit Aggarwal (rohitaggarwal007)

<details>
<summary>Changes</summary>

Handle some cases for target parsing for -fveclib=AMDLIBM option

---
Full diff: https://github.com/llvm/llvm-project/pull/140544.diff


3 Files Affected:

- (modified) clang/lib/Driver/ToolChains/Clang.cpp (+1-1) 
- (modified) clang/lib/Driver/ToolChains/CommonArgs.cpp (+1) 
- (modified) clang/test/Driver/fveclib.c (+10) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp 
b/clang/lib/Driver/ToolChains/Clang.cpp
index a08bdba99bfe0..4aefdb24af17b 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -5844,7 +5844,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction 
&JA,
           Triple.getArch() != llvm::Triple::x86_64)
         D.Diag(diag::err_drv_unsupported_opt_for_target)
             << Name << Triple.getArchName();
-    } else if (Name == "libmvec") {
+    } else if (Name == "libmvec" || Name == "AMDLIBM") {
       if (Triple.getArch() != llvm::Triple::x86 &&
           Triple.getArch() != llvm::Triple::x86_64)
         D.Diag(diag::err_drv_unsupported_opt_for_target)
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp 
b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 632027c4a944c..722431c999b95 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -935,6 +935,7 @@ void tools::addLTOOptions(const ToolChain &ToolChain, const 
ArgList &Args,
         llvm::StringSwitch<std::optional<StringRef>>(ArgVecLib->getValue())
             .Case("Accelerate", "Accelerate")
             .Case("libmvec", "LIBMVEC")
+            .Case("AMDLIBM", "AMDLIBM")
             .Case("MASSV", "MASSV")
             .Case("SVML", "SVML")
             .Case("SLEEF", "sleefgnuabi")
diff --git a/clang/test/Driver/fveclib.c b/clang/test/Driver/fveclib.c
index 1235d08a3e139..5420555c36a2a 100644
--- a/clang/test/Driver/fveclib.c
+++ b/clang/test/Driver/fveclib.c
@@ -1,6 +1,7 @@
 // RUN: %clang -### -c -fveclib=none %s 2>&1 | FileCheck 
--check-prefix=CHECK-NOLIB %s
 // RUN: %clang -### -c -fveclib=Accelerate %s 2>&1 | FileCheck 
--check-prefix=CHECK-ACCELERATE %s
 // RUN: %clang -### -c --target=x86_64-unknown-linux-gnu -fveclib=libmvec %s 
2>&1 | FileCheck --check-prefix=CHECK-libmvec %s
+// RUN: %clang -### -c --target=x86_64-unknown-linux-gnu -fveclib=AMDLIBM %s 
2>&1 | FileCheck --check-prefix=CHECK-AMDLIBM %s
 // RUN: %clang -### -c -fveclib=MASSV %s 2>&1 | FileCheck 
--check-prefix=CHECK-MASSV %s
 // RUN: %clang -### -c -fveclib=Darwin_libsystem_m %s 2>&1 | FileCheck 
--check-prefix=CHECK-DARWIN_LIBSYSTEM_M %s
 // RUN: %clang -### -c --target=aarch64 -fveclib=SLEEF %s 2>&1 | FileCheck 
--check-prefix=CHECK-SLEEF %s
@@ -11,6 +12,7 @@
 // CHECK-NOLIB: "-fveclib=none"
 // CHECK-ACCELERATE: "-fveclib=Accelerate"
 // CHECK-libmvec: "-fveclib=libmvec"
+// CHECK-AMDLIBM: "-fveclib=AMDLIBM"
 // CHECK-MASSV: "-fveclib=MASSV"
 // CHECK-DARWIN_LIBSYSTEM_M: "-fveclib=Darwin_libsystem_m"
 // CHECK-SLEEF: "-fveclib=SLEEF"
@@ -23,6 +25,7 @@
 // RUN: not %clang --target=x86 -c -fveclib=ArmPL %s 2>&1 | FileCheck 
--check-prefix=CHECK-ERROR %s
 // RUN: not %clang --target=aarch64 -c -fveclib=libmvec %s 2>&1 | FileCheck 
--check-prefix=CHECK-ERROR %s
 // RUN: not %clang --target=aarch64 -c -fveclib=SVML %s 2>&1 | FileCheck 
--check-prefix=CHECK-ERROR %s
+// RUN: not %clang --target=aarch64 -c -fveclib=AMDLIBM %s 2>&1 | FileCheck 
--check-prefix=CHECK-ERROR %s
 // CHECK-ERROR: unsupported option {{.*}} for target
 
 // RUN: %clang -fveclib=Accelerate %s -target arm64-apple-ios8.0.0 -### 2>&1 | 
FileCheck --check-prefix=CHECK-LINK %s
@@ -40,6 +43,9 @@
 // RUN: %clang -### --target=x86_64-unknown-linux-gnu -fveclib=libmvec -flto 
%s 2>&1 | FileCheck --check-prefix=CHECK-LTO-LIBMVEC %s
 // CHECK-LTO-LIBMVEC: "-plugin-opt=-vector-library=LIBMVEC"
 
+// RUN: %clang -### --target=x86_64-unknown-linux-gnu -fveclib=AMDLIBM -flto 
%s 2>&1 | FileCheck --check-prefix=CHECK-LTO-AMDLIBM %s
+// CHECK-LTO-AMDLIBM: "-plugin-opt=-vector-library=AMDLIBM"
+
 // RUN: %clang -### --target=powerpc64-unknown-linux-gnu -fveclib=MASSV -flto 
%s 2>&1 | FileCheck --check-prefix=CHECK-LTO-MASSV %s
 // CHECK-LTO-MASSV: "-plugin-opt=-vector-library=MASSV"
 
@@ -62,6 +68,10 @@
 // CHECK-ERRNO-LIBMVEC: "-fveclib=libmvec"
 // CHECK-ERRNO-LIBMVEC-SAME: "-fmath-errno"
 
+// RUN: %clang -### --target=x86_64-unknown-linux-gnu -fveclib=AMDLIBM %s 2>&1 
| FileCheck --check-prefix=CHECK-ERRNO-AMDLIBM %s
+// CHECK-ERRNO-AMDLIBM: "-fveclib=AMDLIBM"
+// CHECK-ERRNO-AMDLIBM-SAME: "-fmath-errno"
+
 // RUN: %clang -### --target=powerpc64-unknown-linux-gnu -fveclib=MASSV %s 
2>&1 | FileCheck --check-prefix=CHECK-ERRNO-MASSV %s
 // CHECK-ERRNO-MASSV: "-fveclib=MASSV"
 // CHECK-ERRNO-MASSV-SAME: "-fmath-errno"

``````````

</details>


https://github.com/llvm/llvm-project/pull/140544
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