[clang] [Hexagon][Driver] Recognize versioned ld.lld as LLD (PR #228982)

[via cfe-commits]

https://github.com/quic-k updated https://github.com/llvm/llvm-project/pull/228982

>From ccd53cbb5c287c4b6e9b941c60f26b694f049399 Mon Sep 17 00:00:00 2001
From: Kushal Pal <kushpal at qti.qualcomm.com>
Date: Mon, 5 Oct 2026 11:38:52 +0530
Subject: [PATCH] [Hexagon][Driver] Recognize versioned ld.lld as LLD

Signed-off-by: Kushal Pal <kushpal at qti.qualcomm.com>
---
 clang/lib/Driver/ToolChains/Hexagon.cpp       |  4 ++-
 .../Tools/bin/hexagon-unknown-elf-ld.lld      |  1 +
 .../Inputs/hexagon_tree/Tools/bin/ld.lld-23   |  0
 clang/test/Driver/hexagon-toolchain-elf.c     | 26 +++++++++++++++++++
 4 files changed, 30 insertions(+), 1 deletion(-)
 create mode 120000 clang/test/Driver/Inputs/hexagon_tree/Tools/bin/hexagon-unknown-elf-ld.lld
 create mode 100755 clang/test/Driver/Inputs/hexagon_tree/Tools/bin/ld.lld-23

diff --git a/clang/lib/Driver/ToolChains/Hexagon.cpp b/clang/lib/Driver/ToolChains/Hexagon.cpp
index ec2641301909d1..9c823a847d6e33 100644
--- a/clang/lib/Driver/ToolChains/Hexagon.cpp
+++ b/clang/lib/Driver/ToolChains/Hexagon.cpp
@@ -302,7 +302,9 @@ constructHexagonLinkArgs(Compilation &C, const JobAction &JA,
   bool IncDefLibs = !Args.hasArg(options::OPT_nodefaultlibs);
   bool UseLLD = false;
   const char *Exec = Args.MakeArgString(HTC.GetLinkerPath(&UseLLD));
-  UseLLD = UseLLD || llvm::sys::path::filename(Exec).ends_with("ld.lld") ||
+  StringRef LinkerName = llvm::sys::path::filename(Exec);
+  UseLLD = UseLLD || LinkerName.starts_with("ld.lld") ||
+           LinkerName.ends_with("ld.lld") ||
            llvm::sys::path::stem(Exec).ends_with("ld.lld");
   bool UseShared = IsShared && !IsStatic;
   StringRef CpuVer = toolchains::HexagonToolChain::GetTargetCPUVersion(Args);
diff --git a/clang/test/Driver/Inputs/hexagon_tree/Tools/bin/hexagon-unknown-elf-ld.lld b/clang/test/Driver/Inputs/hexagon_tree/Tools/bin/hexagon-unknown-elf-ld.lld
new file mode 120000
index 00000000000000..9b032ee3b3f1df
--- /dev/null
+++ b/clang/test/Driver/Inputs/hexagon_tree/Tools/bin/hexagon-unknown-elf-ld.lld
@@ -0,0 +1 @@
+ld.lld
\ No newline at end of file
diff --git a/clang/test/Driver/Inputs/hexagon_tree/Tools/bin/ld.lld-23 b/clang/test/Driver/Inputs/hexagon_tree/Tools/bin/ld.lld-23
new file mode 100755
index 00000000000000..e69de29bb2d1d6
diff --git a/clang/test/Driver/hexagon-toolchain-elf.c b/clang/test/Driver/hexagon-toolchain-elf.c
index f3f01fab3e67be..42d12d573978d8 100644
--- a/clang/test/Driver/hexagon-toolchain-elf.c
+++ b/clang/test/Driver/hexagon-toolchain-elf.c
@@ -704,3 +704,29 @@
 // RUN:   %t.o 2>&1 | FileCheck -check-prefix=CHECK-LTO %s
 // CHECK-LTO: "-plugin-opt=thinlto"
 // CHECK-LTO: "-plugin-opt=-enable-matrix"
+
+// -----------------------------------------------------------------------------
+// Versioned ld.lld is recognized as LLD
+// -----------------------------------------------------------------------------
+// RUN: %clang -### --target=hexagon-unknown-elf \
+// RUN:   -ccc-install-dir %S/Inputs/hexagon_tree/Tools/bin \
+// RUN:   -mcpu=hexagonv60 \
+// RUN:   --ld-path=%S/Inputs/hexagon_tree/Tools/bin/ld.lld-23 \
+// RUN:   -nostdlib %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-VERSIONED-LLD %s
+// CHECK-VERSIONED-LLD: "{{.*}}ld.lld-23"
+// CHECK-VERSIONED-LLD-NOT: "-march=hexagon"
+// CHECK-VERSIONED-LLD-NOT: "-mcpu=hexagonv60"
+
+// -----------------------------------------------------------------------------
+// Triple-prefixed ld.lld is recognized as LLD
+// -----------------------------------------------------------------------------
+// RUN: %clang -### --target=hexagon-unknown-elf \
+// RUN:   -ccc-install-dir %S/Inputs/hexagon_tree/Tools/bin \
+// RUN:   -mcpu=hexagonv60 -fuse-ld=gold \
+// RUN:   --ld-path=%S/Inputs/hexagon_tree/Tools/bin/hexagon-unknown-elf-ld.lld \
+// RUN:   -nostdlib %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-TRIPLE-LLD %s
+// CHECK-TRIPLE-LLD: "{{.*}}hexagon-unknown-elf-ld.lld"
+// CHECK-TRIPLE-LLD-NOT: "-march=hexagon"
+// CHECK-TRIPLE-LLD-NOT: "-mcpu=hexagonv60"