diff --git a/tools/llvmc/src/Base.td.in b/tools/llvmc/src/Base.td.in
index 150829da56b..8a871ad3ff6 100644
--- a/tools/llvmc/src/Base.td.in
+++ b/tools/llvmc/src/Base.td.in
@@ -50,6 +50,10 @@ def OptList : OptionList<[
     (help "Generate code for the specified machine type")),
  (parameter_option "mcpu",
     (help "A deprecated synonym for -mtune"), (hidden), (forward_not_split)),
+ (parameter_option "mabi",
+    (help "Generate code for the specified ABI"), (hidden)),
+ (parameter_option "mfloat-abi",
+    (help "Specifies which floating-point ABI to use"), (hidden)),
  (switch_option "mfix-and-continue",
     (help "Needed by gdb to load .o files dynamically"), (hidden)),
  (parameter_option "MF",
@@ -204,6 +208,8 @@ class llvm_gcc_based <string cmd, string in_lang, string E_ext, dag out_lang,
          (not_empty "march"), (forward "march"),
          (not_empty "mcpu"), (forward "mcpu"),
          (not_empty "mtune"), (forward "mtune"),
+         (not_empty "mabi"), (forward "mabi"),
+         (not_empty "mfloat-abi"), (forward "mfloat-abi"),
          (not_empty "m"), (forward "m"),
          (switch_on "mfix-and-continue"), (forward "mfix-and-continue"),
          (switch_on "m32"), (forward "m32"),
@@ -279,6 +285,8 @@ def llvm_gcc_assembler : Tool<
           (not_empty "march"), (forward "march"),
           (not_empty "mcpu"), (forward "mcpu"),
           (not_empty "mtune"), (forward "mtune"),
+          (not_empty "mabi"), (forward "mabi"),
+          (not_empty "mfloat-abi"), (forward "mfloat-abi"),
           (switch_on "m32"), (forward "m32"),
           (switch_on "m64"), (forward "m64"),
           (not_empty "Wa,"), (forward "Wa,")))
@@ -327,6 +335,8 @@ class llvm_gcc_based_linker <string cmd, dag on_empty> : Tool<
           (not_empty "march"), (forward "march"),
           (not_empty "mcpu"), (forward "mcpu"),
           (not_empty "mtune"), (forward "mtune"),
+          (not_empty "mabi"), (forward "mabi"),
+          (not_empty "mfloat-abi"), (forward "mfloat-abi"),
           (switch_on "m32"), (forward "m32"),
           (switch_on "m64"), (forward "m64"),
           (not_empty "l"), (forward "l"),