diff --git a/src/build/config/compiler/BUILD.gn b/src/build/config/compiler/BUILD.gn
index 8c61c7b7a1..fc205243dc 100644
--- a/src/build/config/compiler/BUILD.gn
+++ b/src/build/config/compiler/BUILD.gn
@@ -1337,6 +1337,14 @@ config("compiler_cpu_abi") {
       }
 
       cflags += [ "-m${mips_float_abi}-float" ]
+
+      # Fix float ABI information not being passed in LLVM bitcode for LTO
+      # and link failure with -mdouble-float being incorrectly used by default
+      # while the bitcode was compiled with -msoft-float.
+      # See https://discourse.llvm.org/t/myterious-soft-float-output-in-lto-cache/70753
+      if (!is_debug && use_thin_lto && is_a_target_toolchain && mips_float_abi == "soft") {
+        ldflags += [ "-Wl,-mllvm,-mattr=+soft-float" ]
+      }
     } else if (current_cpu == "mips" && !is_nacl) {
       ldflags += [ "-Wl,--hash-style=sysv" ]
       if (custom_toolchain == "") {
@@ -1382,6 +1390,14 @@ config("compiler_cpu_abi") {
       }
 
       cflags += [ "-m${mips_float_abi}-float" ]
+
+      # Fix float ABI information not being passed in LLVM bitcode for LTO
+      # and link failure with -mdouble-float being incorrectly used by default
+      # while the bitcode was compiled with -msoft-float.
+      # See https://discourse.llvm.org/t/myterious-soft-float-output-in-lto-cache/70753
+      if (!is_debug && use_thin_lto && is_a_target_toolchain && mips_float_abi == "soft") {
+        ldflags += [ "-Wl,-mllvm,-mattr=+soft-float" ]
+      }
     } else if (current_cpu == "mips64el") {
       cflags += [ "-D__SANE_USERSPACE_TYPES__" ]
       ldflags += [ "-Wl,--hash-style=sysv" ]