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arm.md (negdi2): Remove redundant code to force values into a register. 

* arm.md (negdi2): Remove redundant code to force values into a
	register.

From-SVN: r158472
This commit is contained in:
Richard Earnshaw 2010-04-17 16:53:21 +00:00 committed by Richard Earnshaw
parent 6f0668cf3c
commit 9e315505df
2 changed files with 10 additions and 11 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2010-04-17 Richard Earnshaw <rearnsha@arm.com>
* arm.md (negdi2): Remove redundant code to force values into a
register.
2010-04-17 Richard Earnshaw <rearnsha@arm.com>
* arm/bpabi.S: Add EABI alignment attributes to objects.

16
gcc/config/arm/arm.md
View File

@ -3533,17 +3533,11 @@
(define_expand "negdi2"
[(parallel
[(set (match_operand:DI 0 "s_register_operand" "")
(neg:DI (match_operand:DI 1 "s_register_operand" "")))
[(set (match_operand:DI 0 "s_register_operand" "")
(neg:DI (match_operand:DI 1 "s_register_operand" "")))
(clobber (reg:CC CC_REGNUM))])]
"TARGET_EITHER"
"
if (TARGET_THUMB1)
{
if (GET_CODE (operands[1]) != REG)
operands[1] = force_reg (DImode, operands[1]);
}
"
""
)
;; The constraints here are to prevent a *partial* overlap (where %Q0 == %R1).
@ -3559,8 +3553,8 @@
)
(define_insn "*thumb1_negdi2"
[(set (match_operand:DI 0 "register_operand" "=&l")
(neg:DI (match_operand:DI 1 "register_operand" "l")))
[(set (match_operand:DI 0 "register_operand" "=&l")
(neg:DI (match_operand:DI 1 "register_operand" "l")))
(clobber (reg:CC CC_REGNUM))]
"TARGET_THUMB1"
"mov\\t%R0, #0\;neg\\t%Q0, %Q1\;sbc\\t%R0, %R1"