Index: lld/test/ELF/arm-exidx-add-missing.s
===================================================================
--- lld/test/ELF/arm-exidx-add-missing.s
+++ lld/test/ELF/arm-exidx-add-missing.s
@@ -1,8 +1,8 @@
 // REQUIRES: arm
 // RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi --arm-add-build-attributes %s -o %t
-// RUN: ld-lld %t --no-merge-exidx-entries -o %t2
+// RUN: ld.lld %t --no-merge-exidx-entries -o %t2
 // RUN: llvm-objdump -s %t2 | FileCheck %s
-// RUN: ld-lld %t -o %t3
+// RUN: ld.lld %t -o %t3
 // RUN: llvm-objdump -s %t3 | FileCheck %s -check-prefix=CHECK-MERGE
 
 // The ARM.exidx section is a table of 8-byte entries of the form:
Index: llvm/utils/lit/lit/llvm/config.py
===================================================================
--- llvm/utils/lit/lit/llvm/config.py
+++ llvm/utils/lit/lit/llvm/config.py
@@ -484,11 +484,11 @@
         was_found = ld_lld and lld_link and ld64_lld and wasm_ld
         tool_substitutions = []
         if ld_lld:
-            tool_substitutions.append(ToolSubst('ld.lld', command=ld_lld))
+            tool_substitutions.append(ToolSubst('ld\.lld', command=ld_lld))
         if lld_link:
             tool_substitutions.append(ToolSubst('lld-link', command=lld_link))
         if ld64_lld:
-            tool_substitutions.append(ToolSubst('ld64.lld', command=ld64_lld))
+            tool_substitutions.append(ToolSubst('ld64\.lld', command=ld64_lld))
         if wasm_ld:
             tool_substitutions.append(ToolSubst('wasm-ld', command=wasm_ld))
         self.add_tool_substitutions(tool_substitutions)