OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

* config/arm/arm.md (Thumb-1 ldrsb peephole): New.

Browse Source 
From-SVN: r162021
This commit is contained in:
Bernd Schmidt 2010-07-09 21:45:44 +00:00 committed by Bernd Schmidt
parent 0879e7b37b
commit 1744c80034
2 changed files with 23 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
gcc/ChangeLog
View File

@ -11,6 +11,8 @@
* config/arm/arm.md (addsi3_cbranch): Switch alternatives 0 and 1.
* config/arm/arm.md (Thumb-1 ldrsb peephole): New.
2010-07-09 Richard Guenther <rguenther@suse.de>
* gimple.c (struct type_fixup_s): New struct and VEC type.

21
gcc/config/arm/arm.md
View File

@ -4615,6 +4615,27 @@
operands[3] = change_address (operands[1], QImode, addr);
})
(define_peephole2
[(set (match_operand:SI 0 "register_operand" "")
(plus:SI (match_dup 0) (match_operand 1 "const_int_operand")))
(set (match_operand:SI 2 "register_operand" "") (const_int 0))
(set (match_operand:SI 3 "register_operand" "")
(sign_extend:SI (match_operand:QI 4 "memory_operand" "")))]
"TARGET_THUMB1
&& GET_CODE (XEXP (operands[4], 0)) == PLUS
&& rtx_equal_p (operands[0], XEXP (XEXP (operands[4], 0), 0))
&& rtx_equal_p (operands[2], XEXP (XEXP (operands[4], 0), 1))
&& (peep2_reg_dead_p (3, operands[0])
|| rtx_equal_p (operands[0], operands[3]))
&& (peep2_reg_dead_p (3, operands[2])
|| rtx_equal_p (operands[2], operands[3]))"
[(set (match_dup 2) (match_dup 1))
(set (match_dup 3) (sign_extend:SI (match_dup 4)))]
{
rtx addr = gen_rtx_PLUS (Pmode, operands[0], operands[2]);
operands[4] = change_address (operands[4], QImode, addr);
})
(define_insn "thumb1_extendqisi2"
[(set (match_operand:SI 0 "register_operand" "=l,l,l")
(sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "l,V,m")))]