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re PR target/43742 (web.c/union_match_dups segfaults for a null *ref on sh-elf) 

PR target/43742
	* config/sh/sh.md (doloop_end_split, dect): Undo previous patch.  Use
	matching constraints to ensure inputs match the output.

From-SVN: r158367
This commit is contained in:
Bernd Schmidt 2010-04-15 08:57:27 +00:00 committed by Bernd Schmidt
parent e429bb4931
commit 077668e3f5
2 changed files with 15 additions and 9 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-04-15 Bernd Schmidt <bernd.schmidt@codesourcery.com>
PR target/43742
* config/sh/sh.md (doloop_end_split, dect): Undo previous patch. Use
matching constraints to ensure inputs match the output.
2010-04-15 Kaz Kojima <kkojima@gcc.gnu.org>
PR target/43742

18
gcc/config/sh/sh.md
View File

@ -7050,22 +7050,21 @@ label:
(define_insn_and_split "doloop_end_split"
[(set (pc)
(if_then_else (ne:SI (match_operand:SI 0 "arith_reg_dest" "")
(if_then_else (ne:SI (match_operand:SI 2 "arith_reg_dest" "0")
(const_int 1))
(label_ref (match_operand 1 "" ""))
(pc)))
(set (match_dup 0)
(plus (match_dup 0) (const_int -1)))
(set (match_operand:SI 0 "arith_reg_dest" "=r")
(plus (match_dup 2) (const_int -1)))
(clobber (reg:SI T_REG))]
"TARGET_SH2"
"#"
""
[(parallel [(set (reg:SI T_REG)
(eq:SI (match_operand:SI 0 "arith_reg_dest" "+r")
(const_int 1)))
(set (match_dup 0) (plus:SI (match_dup 0) (const_int -1)))])
(eq:SI (match_dup 2) (const_int 1)))
(set (match_dup 0) (plus:SI (match_dup 2) (const_int -1)))])
(set (pc) (if_then_else (eq (reg:SI T_REG) (const_int 0))
(label_ref (match_operand 1 "" ""))
(label_ref (match_dup 1))
(pc)))]
""
[(set_attr "type" "cbranch")])
@ -8308,8 +8307,9 @@ label:
(define_insn "dect"
[(set (reg:SI T_REG)
(eq:SI (match_operand:SI 0 "arith_reg_dest" "+r") (const_int 1)))
(set (match_dup 0) (plus:SI (match_dup 0) (const_int -1)))]
(eq:SI (match_operand:SI 1 "arith_reg_dest" "0") (const_int 1)))
(set (match_operand:SI 0 "arith_reg_dest" "=r")
(plus:SI (match_dup 1) (const_int -1)))]
"TARGET_SH2"
"dt %0"
[(set_attr "type" "arith")])