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[PATCH 4/5] 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/indirect-thunk-loop-1.c: Likewise.
	* gcc.target/i386/indirect-thunk-loop-2.c: Likewise.
	* gcc.target/i386/indirect-thunk-loop-3.c: Likewise.
	* gcc.target/i386/indirect-thunk-loop-4.c: Likewise.
	* gcc.target/i386/indirect-thunk-loop-5.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.
---
 gcc/config/i386/constraints.md                     | 12 +++++---
 gcc/config/i386/i386.md                            | 34 ++++++++++++++--------
 gcc/config/i386/i386.opt                           |  4 +++
 gcc/config/i386/predicates.md                      | 21 ++++++++-----
 gcc/doc/invoke.texi                                |  6 +++-
 gcc/testsuite/gcc.target/i386/indirect-thunk-1.c   |  2 +-
 gcc/testsuite/gcc.target/i386/indirect-thunk-2.c   |  2 +-
 gcc/testsuite/gcc.target/i386/indirect-thunk-3.c   |  2 +-
 gcc/testsuite/gcc.target/i386/indirect-thunk-4.c   |  2 +-
 gcc/testsuite/gcc.target/i386/indirect-thunk-5.c   |  2 +-
 gcc/testsuite/gcc.target/i386/indirect-thunk-6.c   |  2 +-
 gcc/testsuite/gcc.target/i386/indirect-thunk-7.c   |  2 +-
 .../gcc.target/i386/indirect-thunk-attr-1.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-attr-2.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-attr-3.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-attr-4.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-attr-5.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-attr-6.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-attr-7.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-bnd-1.c         |  2 +-
 .../gcc.target/i386/indirect-thunk-bnd-2.c         |  2 +-
 .../gcc.target/i386/indirect-thunk-bnd-3.c         |  2 +-
 .../gcc.target/i386/indirect-thunk-bnd-4.c         |  2 +-
 .../gcc.target/i386/indirect-thunk-extern-1.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-extern-2.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-extern-3.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-extern-4.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-extern-5.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-extern-6.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-extern-7.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-inline-1.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-inline-2.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-inline-3.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-inline-4.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-inline-5.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-inline-6.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-inline-7.c      |  2 +-
 .../gcc.target/i386/indirect-thunk-loop-1.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-loop-2.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-loop-3.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-loop-4.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-loop-5.c        |  2 +-
 .../gcc.target/i386/indirect-thunk-register-1.c    | 22 ++++++++++++++
 .../gcc.target/i386/indirect-thunk-register-2.c    | 20 +++++++++++++
 .../gcc.target/i386/indirect-thunk-register-3.c    | 19 ++++++++++++
 gcc/testsuite/gcc.target/i386/ret-thunk-10.c       |  2 +-
 gcc/testsuite/gcc.target/i386/ret-thunk-11.c       |  2 +-
 gcc/testsuite/gcc.target/i386/ret-thunk-12.c       |  2 +-
 gcc/testsuite/gcc.target/i386/ret-thunk-13.c       |  2 +-
 gcc/testsuite/gcc.target/i386/ret-thunk-14.c       |  2 +-
 gcc/testsuite/gcc.target/i386/ret-thunk-15.c       |  2 +-
 gcc/testsuite/gcc.target/i386/ret-thunk-9.c        |  2 +-
 52 files changed, 158 insertions(+), 68 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
 create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
 create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c

diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md
index 5f6c6d65332..5592c43073e 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 6c832a867c8..c0efc380e37 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;
 })
@@ -12361,7 +12361,7 @@
 					 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;
 })
@@ -12606,7 +12606,7 @@
   [(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")])
 
@@ -12615,7 +12615,9 @@
 	(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))
@@ -12628,7 +12630,9 @@
    (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)
@@ -12650,7 +12654,7 @@
 })
 
 (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)
@@ -12670,7 +12674,7 @@
   [(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)
@@ -12724,7 +12728,9 @@
   [(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
@@ -12805,7 +12811,7 @@
  	(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")])
 
@@ -12815,7 +12821,9 @@
    (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)
@@ -12830,7 +12838,9 @@
    (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)
@@ -12855,7 +12865,7 @@
 
 (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 2b62363973d..aca7e60a81d 100644
--- a/gcc/config/i386/i386.opt
+++ b/gcc/config/i386/i386.opt
@@ -1046,6 +1046,10 @@ 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.
+
 mindirect-branch-loop=
 Target Report RejectNegative Joined Enum(indirect_branch_loop) Var(ix86_indirect_branch_loop) Init(indirect_branch_loop_lfence)
 Control loop filler in call and return thunk for indirect call and jump.
diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
index 6fb2b4daf67..5ae443231b8 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 fa72a929751..32d68bb0784 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -1228,7 +1228,7 @@ See RS/6000 and PowerPC Options.
 -mstack-protector-guard-symbol=@var{symbol} -mmitigate-rop @gol
 -mgeneral-regs-only -mcall-ms2sysv-xlogues @gol
 -mindirect-branch=@var{choice} -mindirect-branch-loop=@var{choice}
--mfunction-return==@var{choice}}
+-mfunction-return==@var{choice} -mindirect-branch-register}
 
 @emph{x86 Windows Options}
 @gccoptlist{-mconsole  -mcygwin  -mno-cygwin  -mdll @gol
@@ -26795,6 +26795,10 @@ Control loop filler in call and return thunk for indirect call and jump.
 @code{pause} as loop filler.  @samp{nop} uses @code{nop} as loop filler.
 The default is @samp{lfence}.
 
+@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/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
index bd29d466f5c..f4f2b7debe0 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 cf6a6736524..d4e5dadd966 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 46925434933..9802fae5d04 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 ee95d21c08e..fad3105b50d 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 7ea4af5bb71..e44f2ff5682 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 cbf2159ce50..f1e03a30854 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 44130a4175d..fc91a334459 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 2e3e3a5ca8b..a8ab95b6451 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 c88fd33c494..467d62324d5 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 21b69728796..02223f8d0f4 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 0bd6aab2fd6..a80b46af934 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 98785a38248..4bb1c5f9220 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 a498a39e404..4e33a638862 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 66f295d1eb6..427ba3ddbb4 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 154eb7adfcd..3399ad56a7f 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 62d9831af27..daa9528f7bd 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 b5a601a4da3..647ec5a4ade 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 c36a821c8e5..3a7a1cea8bc 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 637fc3d3f4e..5c20a35ecec 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 ff9efe03fe6..b2fb6e1bcd2 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 2686a5f2db4..9c84547cd7c 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 f07f6b214ad..457849564bb 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 21740ac5b7f..5c07e02df6a 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 a77c1f470b8..3eb440693a0 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 e64910fd4aa..d4747ea0764 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 efa0096e1e0..f7fad345ca4 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 775d0b8c53e..91388544a20 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 788271f049f..69f03e6472e 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 ef8a2c746a7..226b776abcf 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 848ceefca02..b9120017c10 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 64608100782..fbd6f9ec457 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 3c2758360f5..2553c56f97f 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-loop-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-1.c
index 1b0e2c58775..c266ca6f2da 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-1.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mindirect-branch=thunk -mindirect-branch-loop=pause -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk -mindirect-branch-loop=pause -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-2.c
index feace47a765..f7c1cf6c45a 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-2.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mindirect-branch=thunk -mindirect-branch-loop=nop -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk -mindirect-branch-loop=nop -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-3.c
index ad2165fa7aa..ef5c4b84312 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-3.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-3.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mindirect-branch=thunk -mindirect-branch-loop=lfence -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk -mindirect-branch-loop=lfence -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-4.c
index 4ba997da966..941fcdaffb1 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-4.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-4.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mindirect-branch=thunk-inline -mindirect-branch-loop=pause -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk-inline -mindirect-branch-loop=pause -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-5.c
index 10fb2193f5e..0c5ace58358 100644
--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-5.c
+++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-5.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mindirect-branch=thunk-extern -mindirect-branch-loop=pause -fno-pic" } */
+/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk-extern -mindirect-branch-loop=pause -fno-pic" } */
 
 typedef void (*dispatch_t)(long offset);
 
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 00000000000..06a1f9fa84e
--- /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 {\tlfence} } } */
+/* { 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 00000000000..428d6f9e986
--- /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 {\tlfence} } } */
+/* { 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 00000000000..28dcdcf2855
--- /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(lfence|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 d7313d631aa..da8029bad49 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 66efd2adfd3..6964997871d 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 b5306581e91..ff0234bd17d 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 3759246d7ff..a5b16472051 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 6827fa250aa..219d71548bf 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 0437ca2453b..bad6b16820d 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 adf83df4776..21a0e6bde3d 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);
 
-- 
2.14.3


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