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Only allow jbls/jblc x(r) iff (x & 3) == 0

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This commit is contained in:
matt 2010-07-27 01:13:41 +00:00
parent c1564f54b6
commit 6910a36f83
1 changed files with 38 additions and 12 deletions
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50
gnu/dist/gcc4/gcc/config/vax/vax.md vendored
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@ -1129,30 +1129,56 @@
(define_insn ""
[(set (pc)
(if_then_else
(ne (zero_extract:SI (match_operand:QI 0 "memory_operand" "Q,g")
(ne (zero_extract:SI (match_operand:QI 0 "memory_operand" "Q")
(const_int 1)
(match_operand:SI 1 "general_operand" "I,nrmT"))
(const_int 0))
(const_int 0))
(label_ref (match_operand 2 "" ""))
(label_ref (match_operand 1 "" ""))
(pc)))]
""
"@
jlbs %0,%l2
jbs %1,%0,%l2")
"GET_CODE (XEXP (operands[0], 0)) != PLUS
|| !REG_P (XEXP (XEXP (operands[0], 0), 0))
|| !CONST_INT_P (XEXP (XEXP (operands[0], 0), 1))
|| (INTVAL (XEXP (XEXP (operands[0], 0), 1)) & 3) == 0"
"jlbs %0,%l1")
(define_insn ""
[(set (pc)
(if_then_else
(eq (zero_extract:SI (match_operand:QI 0 "memory_operand" "Q,g")
(ne (zero_extract:SI (match_operand:QI 0 "memory_operand" "g")
(const_int 1)
(match_operand:SI 1 "general_operand" "I,nrmT"))
(match_operand:SI 1 "general_operand" "nrmT"))
(const_int 0))
(label_ref (match_operand 2 "" ""))
(pc)))]
""
"@
jlbc %0,%l2
jbc %1,%0,%l2")
"jbs %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(eq (zero_extract:SI (match_operand:QI 0 "memory_operand" "Q")
(const_int 1)
(const_int 0))
(const_int 0))
(label_ref (match_operand 1 "" ""))
(pc)))]
"GET_CODE (XEXP (operands[0], 0)) != PLUS
|| !REG_P (XEXP (XEXP (operands[0], 0), 0))
|| !CONST_INT_P (XEXP (XEXP (operands[0], 0), 1))
|| (INTVAL (XEXP (XEXP (operands[0], 0), 1)) & 3) == 0"
"jlbc %0,%l1")
(define_insn ""
[(set (pc)
(if_then_else
(eq (zero_extract:SI (match_operand:QI 0 "memory_operand" "g")
(const_int 1)
(match_operand:SI 1 "general_operand" "nrmT"))
(const_int 0))
(label_ref (match_operand 2 "" ""))
(pc)))]
""
"jbc %1,%0,%l2")
(define_insn ""
[(set (pc)