x86: Add -mindirect-branch-register

Add -mindirect-branch-register to force indirect branch via register.
This is implemented by disabling patterns of indirect branch via memory,
similar to TARGET_X32.

-mindirect-branch= and -mfunction-return= tests are updated with
-mno-indirect-branch-register to avoid false test failures when
-mindirect-branch-register is added to RUNTESTFLAGS for "make check".

gcc/

	* config/i386/constraints.md (Bs): Disallow memory operand for
	-mindirect-branch-register.
	(Bw): Likewise.
	* config/i386/predicates.md (indirect_branch_operand): Likewise.
	(GOT_memory_operand): Likewise.
	(call_insn_operand): Likewise.
	(sibcall_insn_operand): Likewise.
	(GOT32_symbol_operand): Likewise.
	* config/i386/i386.md (indirect_jump): Call convert_memory_address
	for -mindirect-branch-register.
	(tablejump): Likewise.
	(*sibcall_memory): Likewise.
	(*sibcall_value_memory): Likewise.
	Disallow peepholes of indirect call and jump via memory for
	-mindirect-branch-register.
	(*call_pop): Replace m with Bw.
	(*call_value_pop): Likewise.
	(*sibcall_pop_memory): Replace m with Bs.
	* config/i386/i386.opt (mindirect-branch-register): New option.
	* doc/invoke.texi: Document -mindirect-branch-register option.

gcc/testsuite/

	* gcc.target/i386/indirect-thunk-1.c (dg-options): Add
	-mno-indirect-branch-register.
	* gcc.target/i386/indirect-thunk-2.c: Likewise.
	* gcc.target/i386/indirect-thunk-3.c: Likewise.
	* gcc.target/i386/indirect-thunk-4.c: Likewise.
	* gcc.target/i386/indirect-thunk-5.c: Likewise.
	* gcc.target/i386/indirect-thunk-6.c: Likewise.
	* gcc.target/i386/indirect-thunk-7.c: Likewise.
	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
	* gcc.target/i386/ret-thunk-10.c: Likewise.
	* gcc.target/i386/ret-thunk-11.c: Likewise.
	* gcc.target/i386/ret-thunk-12.c: Likewise.
	* gcc.target/i386/ret-thunk-13.c: Likewise.
	* gcc.target/i386/ret-thunk-14.c: Likewise.
	* gcc.target/i386/ret-thunk-15.c: Likewise.
	* gcc.target/i386/ret-thunk-9.c: Likewise.
	* gcc.target/i386/indirect-thunk-register-1.c: New test.
	* gcc.target/i386/indirect-thunk-register-2.c: Likewise.
	* gcc.target/i386/indirect-thunk-register-3.c: Likewise.

From-SVN: r256662

49 files changed, 223 insertions, 63 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bd26df0..2fb1c5a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,28 @@
 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
 
+	* config/i386/constraints.md (Bs): Disallow memory operand for
+	-mindirect-branch-register.
+	(Bw): Likewise.
+	* config/i386/predicates.md (indirect_branch_operand): Likewise.
+	(GOT_memory_operand): Likewise.
+	(call_insn_operand): Likewise.
+	(sibcall_insn_operand): Likewise.
+	(GOT32_symbol_operand): Likewise.
+	* config/i386/i386.md (indirect_jump): Call convert_memory_address
+	for -mindirect-branch-register.
+	(tablejump): Likewise.
+	(*sibcall_memory): Likewise.
+	(*sibcall_value_memory): Likewise.
+	Disallow peepholes of indirect call and jump via memory for
+	-mindirect-branch-register.
+	(*call_pop): Replace m with Bw.
+	(*call_value_pop): Likewise.
+	(*sibcall_pop_memory): Replace m with Bs.
+	* config/i386/i386.opt (mindirect-branch-register): New option.
+	* doc/invoke.texi: Document -mindirect-branch-register option.
+
+2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
 	* config/i386/i386-protos.h (ix86_output_function_return): New.
 	* config/i386/i386.c (ix86_set_indirect_branch_type): Also
 	set function_return_type.
diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md
index 5f6c6d6..5592c43 100644
--- a/gcc/config/i386/constraints.md
+++ b/gcc/config/i386/constraints.md
@@ -225,16 +225,20 @@
 
 (define_constraint "Bs"
   "@internal Sibcall memory operand."
-  (ior (and (not (match_test "TARGET_X32"))
+  (ior (and (not (match_test "TARGET_X32
+			      || ix86_indirect_branch_thunk_register"))
 	    (match_operand 0 "sibcall_memory_operand"))
-       (and (match_test "TARGET_X32 && Pmode == DImode")
+       (and (match_test "TARGET_X32 && Pmode == DImode
+			 && !ix86_indirect_branch_thunk_register")
 	    (match_operand 0 "GOT_memory_operand"))))
 
 (define_constraint "Bw"
   "@internal Call memory operand."
-  (ior (and (not (match_test "TARGET_X32"))
+  (ior (and (not (match_test "TARGET_X32
+			      || ix86_indirect_branch_thunk_register"))
 	    (match_operand 0 "memory_operand"))
-       (and (match_test "TARGET_X32 && Pmode == DImode")
+       (and (match_test "TARGET_X32 && Pmode == DImode
+			 && !ix86_indirect_branch_thunk_register")
 	    (match_operand 0 "GOT_memory_operand"))))
 
 (define_constraint "Bz"
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 7e21c48..fff73fe 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -12311,7 +12311,7 @@
   [(set (pc) (match_operand 0 "indirect_branch_operand"))]
   ""
 {
-  if (TARGET_X32)
+  if (TARGET_X32 || ix86_indirect_branch_thunk_register)
     operands[0] = convert_memory_address (word_mode, operands[0]);
   cfun->machine->has_local_indirect_jump = true;
 })
@@ -12365,7 +12365,7 @@
 					 OPTAB_DIRECT);
     }
 
-  if (TARGET_X32)
+  if (TARGET_X32 || ix86_indirect_branch_thunk_register)
     operands[0] = convert_memory_address (word_mode, operands[0]);
   cfun->machine->has_local_indirect_jump = true;
 })
@@ -12614,7 +12614,7 @@
   [(call (mem:QI (match_operand:W 0 "memory_operand" "m"))
 	 (match_operand 1))
    (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
-  "!TARGET_X32"
+  "!TARGET_X32 && !ix86_indirect_branch_thunk_register"
   "* return ix86_output_call_insn (insn, operands[0]);"
   [(set_attr "type" "call")])
 
@@ -12623,7 +12623,9 @@
 	(match_operand:W 1 "memory_operand"))
    (call (mem:QI (match_dup 0))
 	 (match_operand 3))]
-  "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1))
+  "!TARGET_X32
+   && !ix86_indirect_branch_thunk_register
+   && SIBLING_CALL_P (peep2_next_insn (1))
    && !reg_mentioned_p (operands[0],
 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
   [(parallel [(call (mem:QI (match_dup 1))
@@ -12636,7 +12638,9 @@
    (unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
    (call (mem:QI (match_dup 0))
 	 (match_operand 3))]
-  "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2))
+  "!TARGET_X32
+   && !ix86_indirect_branch_thunk_register
+   && SIBLING_CALL_P (peep2_next_insn (2))
    && !reg_mentioned_p (operands[0],
 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
   [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
@@ -12658,7 +12662,7 @@
 })
 
 (define_insn "*call_pop"
-  [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lmBz"))
+  [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lBwBz"))
 	 (match_operand 1))
    (set (reg:SI SP_REG)
 	(plus:SI (reg:SI SP_REG)
@@ -12678,7 +12682,7 @@
   [(set_attr "type" "call")])
 
 (define_insn "*sibcall_pop_memory"
-  [(call (mem:QI (match_operand:SI 0 "memory_operand" "m"))
+  [(call (mem:QI (match_operand:SI 0 "memory_operand" "Bs"))
 	 (match_operand 1))
    (set (reg:SI SP_REG)
 	(plus:SI (reg:SI SP_REG)
@@ -12732,7 +12736,9 @@
   [(set (match_operand:W 0 "register_operand")
         (match_operand:W 1 "memory_operand"))
    (set (pc) (match_dup 0))]
-  "!TARGET_X32 && peep2_reg_dead_p (2, operands[0])"
+  "!TARGET_X32
+   && !ix86_indirect_branch_thunk_register
+   && peep2_reg_dead_p (2, operands[0])"
   [(set (pc) (match_dup 1))])
 
 ;; Call subroutine, returning value in operand 0
@@ -12813,7 +12819,7 @@
  	(call (mem:QI (match_operand:W 1 "memory_operand" "m"))
 	      (match_operand 2)))
    (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
-  "!TARGET_X32"
+  "!TARGET_X32 && !ix86_indirect_branch_thunk_register"
   "* return ix86_output_call_insn (insn, operands[1]);"
   [(set_attr "type" "callv")])
 
@@ -12823,7 +12829,9 @@
    (set (match_operand 2)
    (call (mem:QI (match_dup 0))
 		 (match_operand 3)))]
-  "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1))
+  "!TARGET_X32
+   && !ix86_indirect_branch_thunk_register
+   && SIBLING_CALL_P (peep2_next_insn (1))
    && !reg_mentioned_p (operands[0],
 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
   [(parallel [(set (match_dup 2)
@@ -12838,7 +12846,9 @@
    (set (match_operand 2)
 	(call (mem:QI (match_dup 0))
 	      (match_operand 3)))]
-  "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2))
+  "!TARGET_X32
+   && !ix86_indirect_branch_thunk_register
+   && SIBLING_CALL_P (peep2_next_insn (2))
    && !reg_mentioned_p (operands[0],
 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
   [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
@@ -12863,7 +12873,7 @@
 
 (define_insn "*call_value_pop"
   [(set (match_operand 0)
-	(call (mem:QI (match_operand:SI 1 "call_insn_operand" "lmBz"))
+	(call (mem:QI (match_operand:SI 1 "call_insn_operand" "lBwBz"))
 	      (match_operand 2)))
    (set (reg:SI SP_REG)
 	(plus:SI (reg:SI SP_REG)
diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
index 7b17773..c6be5f9 100644
--- a/gcc/config/i386/i386.opt
+++ b/gcc/config/i386/i386.opt
@@ -1045,3 +1045,7 @@ Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline)
 
 EnumValue
 Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern)
+
+mindirect-branch-register
+Target Report Var(ix86_indirect_branch_thunk_register) Init(0)
+Force indirect call and jump via register.
diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
index 6fb2b4d..5ae4432 100644
--- a/gcc/config/i386/predicates.md
+++ b/gcc/config/i386/predicates.md
@@ -665,7 +665,8 @@
 ;; Test for a valid operand for indirect branch.
 (define_predicate "indirect_branch_operand"
   (ior (match_operand 0 "register_operand")
-       (and (not (match_test "TARGET_X32"))
+       (and (not (match_test "TARGET_X32
+			      || ix86_indirect_branch_thunk_register"))
 	    (match_operand 0 "memory_operand"))))
 
 ;; Return true if OP is a memory operands that can be used in sibcalls.
@@ -694,7 +695,8 @@
 
 ;; Return true if OP is a GOT memory operand.
 (define_predicate "GOT_memory_operand"
-  (match_operand 0 "memory_operand")
+  (and (match_test "!ix86_indirect_branch_thunk_register")
+       (match_operand 0 "memory_operand"))
 {
   op = XEXP (op, 0);
   return (GET_CODE (op) == CONST
@@ -708,9 +710,11 @@
   (ior (match_test "constant_call_address_operand
 		     (op, mode == VOIDmode ? mode : Pmode)")
        (match_operand 0 "call_register_no_elim_operand")
-       (ior (and (not (match_test "TARGET_X32"))
+       (ior (and (not (match_test "TARGET_X32
+				   || ix86_indirect_branch_thunk_register"))
 		 (match_operand 0 "memory_operand"))
-	    (and (match_test "TARGET_X32 && Pmode == DImode")
+	    (and (match_test "TARGET_X32 && Pmode == DImode
+			      && !ix86_indirect_branch_thunk_register")
 		 (match_operand 0 "GOT_memory_operand")))))
 
 ;; Similarly, but for tail calls, in which we cannot allow memory references.
@@ -718,14 +722,17 @@
   (ior (match_test "constant_call_address_operand
 		     (op, mode == VOIDmode ? mode : Pmode)")
        (match_operand 0 "register_no_elim_operand")
-       (ior (and (not (match_test "TARGET_X32"))
+       (ior (and (not (match_test "TARGET_X32
+				   || ix86_indirect_branch_thunk_register"))
 		 (match_operand 0 "sibcall_memory_operand"))
-	    (and (match_test "TARGET_X32 && Pmode == DImode")
+	    (and (match_test "TARGET_X32 && Pmode == DImode
+			      && !ix86_indirect_branch_thunk_register")
 		 (match_operand 0 "GOT_memory_operand")))))
 
 ;; Return true if OP is a 32-bit GOT symbol operand.
 (define_predicate "GOT32_symbol_operand"
-  (match_test "GET_CODE (op) == CONST
+  (match_test "!ix86_indirect_branch_thunk_register
+	       && GET_CODE (op) == CONST
                && GET_CODE (XEXP (op, 0)) == UNSPEC
                && XINT (XEXP (op, 0), 1) == UNSPEC_GOT"))
 
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 128a562..cb18a0e 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -1230,7 +1230,8 @@ See RS/6000 and PowerPC Options.
 -mstack-protector-guard-offset=@var{offset} @gol
 -mstack-protector-guard-symbol=@var{symbol} -mmitigate-rop @gol
 -mgeneral-regs-only -mcall-ms2sysv-xlogues @gol
--mindirect-branch=@var{choice} -mfunction-return==@var{choice}}
+-mindirect-branch=@var{choice} -mfunction-return==@var{choice} @gol
+-mindirect-branch-register}
 
 @emph{x86 Windows Options}
 @gccoptlist{-mconsole  -mcygwin  -mno-cygwin  -mdll @gol
@@ -26868,6 +26869,10 @@ object file.  You can control this behavior for a specific function by
 using the function attribute @code{function_return}.
 @xref{Function Attributes}.
 
+@item -mindirect-branch-register
+@opindex -mindirect-branch-register
+Force indirect call and jump via register.
+
 @end table
 
 These @samp{-m} switches are supported in addition to the above
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 720c198..796a329 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,52 @@
 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* gcc.target/i386/indirect-thunk-1.c (dg-options): Add
+	-mno-indirect-branch-register.
+	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+	* gcc.target/i386/ret-thunk-10.c: Likewise.
+	* gcc.target/i386/ret-thunk-11.c: Likewise.
+	* gcc.target/i386/ret-thunk-12.c: Likewise.
+	* gcc.target/i386/ret-thunk-13.c: Likewise.
+	* gcc.target/i386/ret-thunk-14.c: Likewise.
+	* gcc.target/i386/ret-thunk-15.c: Likewise.
+	* gcc.target/i386/ret-thunk-9.c: Likewise.
+	* gcc.target/i386/indirect-thunk-register-1.c: New test.
+	* gcc.target/i386/indirect-thunk-register-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-register-3.c: Likewise.
+
+2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gcc.target/i386/indirect-thunk-1.c (dg-options): Add
 	-mfunction-return=keep.
 	* gcc.target/i386/indirect-thunk-2.c: Likewise.
 	* gcc.target/i386/indirect-thunk-3.c: Likewise.
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
index f076155..9eb9b27 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
index d7984f5..c63795e 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
index 3257d0a..82973cd 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
index 7cab2df..a5f3d1c 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
index b4836c3..fcaa18d 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target *-*-linux* } } */
-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
 
 extern void bar (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
index 1f06bd1..e464928 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target *-*-linux* } } */
-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
 
 extern void bar (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
index 0b3fef8..ebfb8aa 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
 
 void func0 (void);
 void func1 (void);
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
index 5f6cfc1..a08022d 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
index b256160..b257c69 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
index 567c950..dfb1370 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
index 3b662af..a6e3f6f 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
index 98785a3..4bb1c5f 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
index a498a39..4e33a63 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
index 66f295d..427ba3d 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
 
 void func0 (void);
 void func1 (void);
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
index aacb814..dc71434 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target { ! x32 } } } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
 
 void (*dispatch) (char *);
 char buf[10];
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
index 7b44dda..737c609 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target { ! x32 } } } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
 
 void (*dispatch) (char *);
 char buf[10];
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
index 70b4fb3..d34485a 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
 
 void bar (char *);
 char buf[10];
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
index 3baf03e..0e19830 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
 
 void bar (char *);
 char buf[10];
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
index 637fc3d..5c20a35 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
index ff9efe0..b2fb6e1 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
index 2686a5f..9c84547 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
index f07f6b2..4578495 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
index 21740ac..5c07e02 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target *-*-linux* } } */
-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
 
 extern void bar (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
index a77c1f4..3eb4406 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target *-*-linux* } } */
-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
 
 extern void bar (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
index e64910f..d4747ea 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
 
 void func0 (void);
 void func1 (void);
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
index 365cf2e..536abfa 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
index 72646a4..bd2b624 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
index f48945e..9885eeb 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
index 4b1d558..7b39839 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
index 0f687c3..c6d77e1 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target *-*-linux* } } */
-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
 
 extern void bar (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
index b27c6fc..6454827 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target *-*-linux* } } */
-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
 
 extern void bar (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
index 2c49649..cc592f8 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
 
 void func0 (void);
 void func1 (void);
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
new file mode 100644
index 0000000..7d396a3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mindirect-branch=thunk -mindirect-branch-register -fno-pic" } */
+
+typedef void (*dispatch_t)(long offset);
+
+dispatch_t dispatch;
+
+void
+male_indirect_jump (long offset)
+{
+  dispatch(offset);
+}
+
+/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */
+/* { dg-final { scan-assembler {\tpause} } } */
+/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch"  } } */
+/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+/* { dg-final { scan-assembler-not "__x86_indirect_thunk\n" } } */
+/* { dg-final { scan-assembler-not "__x86_indirect_thunk_bnd\n" } } */
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
new file mode 100644
index 0000000..e7e616b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mindirect-branch=thunk-inline -mindirect-branch-register -fno-pic" } */
+
+typedef void (*dispatch_t)(long offset);
+
+dispatch_t dispatch;
+
+void
+male_indirect_jump (long offset)
+{
+  dispatch(offset);
+}
+
+/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */
+/* { dg-final { scan-assembler {\tpause} } } */
+/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch"  } } */
+/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
new file mode 100644
index 0000000..5320e92
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mindirect-branch=thunk-extern -mindirect-branch-register -fno-pic" } */
+
+typedef void (*dispatch_t)(long offset);
+
+dispatch_t dispatch;
+
+void
+male_indirect_jump (long offset)
+{
+  dispatch(offset);
+}
+
+/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch"  } } */
+/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+/* { dg-final { scan-assembler-not {\t(pause|pause|nop)} } } */
+/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
index 1630e2f..b4f9d48 100644
--- a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */
 
 extern void (*bar) (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
index 876159c..0312577 100644
--- a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */
 
 extern void (*bar) (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
index 01b0a02..fa31813 100644
--- a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
 
 extern void (*bar) (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
index e028c2b..7a08e71 100644
--- a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
 
 extern void (*bar) (void);
 extern int foo (void) __attribute__ ((function_return("thunk")));
diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
index c14ee3a..dacf0c7 100644
--- a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
 
 extern void (*bar) (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
index 2f21e13..cf06a5f 100644
--- a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */
 
 extern void (*bar) (void);
 
diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
index f6ccad9..6da5ab9 100644
--- a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */
 
 extern void (*bar) (void);