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Don't check ix86_indirect_branch_register for GOT operand 

Since GOT_memory_operand and GOT32_symbol_operand are simple pattern
matches, don't check ix86_indirect_branch_register here.  If needed,
-mindirect-branch= will convert indirect branch via GOT slot to a call
and return thunk.

	* config/i386/constraints.md (Bs): Update
	ix86_indirect_branch_register check.  Don't check
	ix86_indirect_branch_register with GOT_memory_operand.
	(Bw): Likewise.
	* config/i386/predicates.md (GOT_memory_operand): Don't check
	ix86_indirect_branch_register here.
	(GOT32_symbol_operand): Likewise.

From-SVN: r256714
This commit is contained in:
H.J. Lu 2018-01-15 22:35:36 +00:00 committed by H.J. Lu
parent 5ca876c398
commit 4a5a0497ba
3 changed files with 18 additions and 12 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2018-01-15 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/constraints.md (Bs): Update
ix86_indirect_branch_register check. Don't check
ix86_indirect_branch_register with GOT_memory_operand.
(Bw): Likewise.
* config/i386/predicates.md (GOT_memory_operand): Don't check
ix86_indirect_branch_register here.
(GOT32_symbol_operand): Likewise.
2018-01-15 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/predicates.md (constant_call_address_operand):

14
gcc/config/i386/constraints.md
View File

@ -225,20 +225,18 @@
(define_constraint "Bs"
"@internal Sibcall memory operand."
(ior (and (not (match_test "TARGET_X32
|| ix86_indirect_branch_register"))
(ior (and (not (match_test "ix86_indirect_branch_register"))
(not (match_test "TARGET_X32"))
(match_operand 0 "sibcall_memory_operand"))
(and (match_test "TARGET_X32 && Pmode == DImode
&& !ix86_indirect_branch_register")
(and (match_test "TARGET_X32 && Pmode == DImode")
(match_operand 0 "GOT_memory_operand"))))
(define_constraint "Bw"
"@internal Call memory operand."
(ior (and (not (match_test "TARGET_X32
|| ix86_indirect_branch_register"))
(ior (and (not (match_test "ix86_indirect_branch_register"))
(not (match_test "TARGET_X32"))
(match_operand 0 "memory_operand"))
(and (match_test "TARGET_X32 && Pmode == DImode
&& !ix86_indirect_branch_register")
(and (match_test "TARGET_X32 && Pmode == DImode")
(match_operand 0 "GOT_memory_operand"))))
(define_constraint "Bz"

6
gcc/config/i386/predicates.md
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@ -695,8 +695,7 @@
;; Return true if OP is a GOT memory operand.
(define_predicate "GOT_memory_operand"
(and (match_test "!ix86_indirect_branch_register")
(match_operand 0 "memory_operand"))
(match_operand 0 "memory_operand")
{
op = XEXP (op, 0);
return (GET_CODE (op) == CONST
@ -729,8 +728,7 @@
;; Return true if OP is a 32-bit GOT symbol operand.
(define_predicate "GOT32_symbol_operand"
(match_test "!ix86_indirect_branch_register
&& GET_CODE (op) == CONST
(match_test "GET_CODE (op) == CONST
&& GET_CODE (XEXP (op, 0)) == UNSPEC
&& XINT (XEXP (op, 0), 1) == UNSPEC_GOT"))