diff --git a/llvm/utils/lit/lit/llvm/config.py b/llvm/utils/lit/lit/llvm/config.py
--- a/llvm/utils/lit/lit/llvm/config.py
+++ b/llvm/utils/lit/lit/llvm/config.py
@@ -595,10 +595,10 @@
 
         # Discover the 'clang' and 'clangcc' to use.
 
-        ld_lld = self.use_llvm_tool('ld.lld', required=required)
-        lld_link = self.use_llvm_tool('lld-link', required=required)
-        ld64_lld = self.use_llvm_tool('ld64.lld', required=required)
-        wasm_ld = self.use_llvm_tool('wasm-ld', required=required)
+        ld_lld = self.use_llvm_tool('ld.lld', search_env='LDLLD', required=required)
+        lld_link = self.use_llvm_tool('lld-link', search_env='LLDLINK', required=required)
+        ld64_lld = self.use_llvm_tool('ld64.lld', search_env='LD64LLD', required=required)
+        wasm_ld = self.use_llvm_tool('wasm-ld', search_env='WASMLD', required=required)
 
         was_found = ld_lld and lld_link and ld64_lld and wasm_ld
         tool_substitutions = []
diff --git a/llvm/utils/lit/tests/Inputs/lld-search-env/lit.cfg b/llvm/utils/lit/tests/Inputs/lld-search-env/lit.cfg
new file mode 100644
--- /dev/null
+++ b/llvm/utils/lit/tests/Inputs/lld-search-env/lit.cfg
@@ -0,0 +1,16 @@
+import lit.formats
+config.name = 'search-env'
+config.suffixes = ['.txt']
+config.test_format = lit.formats.ShTest()
+config.test_source_root = None
+config.test_exec_root = None
+config.llvm_tools_dir = ''
+import lit.llvm
+lit.llvm.initialize(lit_config, config)
+import os.path
+curdir = os.path.dirname(__file__)
+lit.llvm.llvm_config.with_environment('LDLLD', os.path.join(curdir, 'tool1'))
+lit.llvm.llvm_config.with_environment('LLDLINK', os.path.join(curdir, 'tool2'))
+lit.llvm.llvm_config.with_environment('LD64LLD', os.path.join(curdir, 'tool3'))
+lit.llvm.llvm_config.with_environment('WASMLD', os.path.join(curdir, 'tool4'))
+lit.llvm.llvm_config.use_lld()
diff --git a/llvm/utils/lit/tests/Inputs/lld-search-env/tool1 b/llvm/utils/lit/tests/Inputs/lld-search-env/tool1
new file mode 100644
diff --git a/llvm/utils/lit/tests/Inputs/lld-search-env/tool2 b/llvm/utils/lit/tests/Inputs/lld-search-env/tool2
new file mode 100644
diff --git a/llvm/utils/lit/tests/Inputs/lld-search-env/tool3 b/llvm/utils/lit/tests/Inputs/lld-search-env/tool3
new file mode 100644
diff --git a/llvm/utils/lit/tests/Inputs/lld-search-env/tool4 b/llvm/utils/lit/tests/Inputs/lld-search-env/tool4
new file mode 100644
diff --git a/llvm/utils/lit/tests/Inputs/lld-search-env/true.txt b/llvm/utils/lit/tests/Inputs/lld-search-env/true.txt
new file mode 100644
--- /dev/null
+++ b/llvm/utils/lit/tests/Inputs/lld-search-env/true.txt
@@ -0,0 +1 @@
+# RUN: true
diff --git a/llvm/utils/lit/tests/lld-search-env.py b/llvm/utils/lit/tests/lld-search-env.py
new file mode 100644
--- /dev/null
+++ b/llvm/utils/lit/tests/lld-search-env.py
@@ -0,0 +1,8 @@
+## Show that lit uses a set of environment variable to locate the LLD variants.
+
+# RUN: %{lit} %{inputs}/lld-search-env 2>&1 | FileCheck %s -DDIR=%p
+
+# CHECK: note: using ld.lld: [[DIR]]{{[\\/]}}Inputs{{[\\/]}}lld-search-env{{[\\/]}}tool1
+# CHECK: note: using lld-link: [[DIR]]{{[\\/]}}Inputs{{[\\/]}}lld-search-env{{[\\/]}}tool2
+# CHECK: note: using ld64.lld: [[DIR]]{{[\\/]}}Inputs{{[\\/]}}lld-search-env{{[\\/]}}tool3
+# CHECK: note: using wasm-ld: [[DIR]]{{[\\/]}}Inputs{{[\\/]}}lld-search-env{{[\\/]}}tool4