avr-gcc-list
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [avr-gcc-list] Inversion of logic improves size speed


From: Anatoly Sokolov
Subject: Re: [avr-gcc-list] Inversion of logic improves size speed
Date: Mon, 27 Aug 2007 17:14:29 +0400

> Anatoly Sokolov wrote:
>> Hi.
>>
>> This patch optimizes logic left shift of unsigned char by 4, 5, and 6,
>> excluding double 'andi' instructions in some cases.
>>

Patch.

Anatoly.



begin 666 gcc_fix_11259_33028.txt
address@hidden(&=C8R]R96-O9RYC"CT]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]
M/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T*+2TM
M(&=C8R]R96-O9RYC"2AR979I<VEO;B Q,C<W.3DI"BLK*R!G8V,O<F5C;V<N
M8PDH=V]R:VEN9R!C;W!Y*0I 0" M,CDV."PV("address@hidden *( D)(" O
M*B!)9B!A;B!I;G-N(&AA<R!25%A?1E)!345?4D5,051%1%]0('-E="P@<&5E
M<&AO;&4*( D)(" @("!S=6)S=&ET=71I;address@hidden;&0@;&]S92!T:&4*( D)
M(" @("!214=?1E)!345?4D5,051%1%]%6%!2('1H870@:7,@871T86-H960N
M(" J+PHK"0D@(&9O<B H:2 ](# [(&D@/"!-05A?24Y33E-?4$527U!%15 R
M("L@,address@hidden"0D@(" @<&5E<#)?:6YS;E]D871A6VE=+FEN<VX@/2!.
M54Q,7U)46#L**PD)("!P965P,E]I;G-N7V1A=&%;<&5E<#)?8W5R<F5N=%TN
M:6YS;B ](%!%15 R7T5/0CL*( D)("!P965P,E]C=7)R96YT7V-O=6YT(#T@
M,#L*( D)("!T<GD@/2!.54Q,.PH@"0E]"DEN9&5X.B!G8V,O8V]N9FEG+V%V
M<B]A=G(N;60*/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]
M/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/3T]/address@hidden;F9I
M9R]A=G(O879R+FUD"2AR979I<VEO;B Q,C<W.3DI"BLK*R!G8V,O8V]N9FEG
M+V%V<B]A=G(N;60)*'=O<FMI;F<@8V]P>2D*0$ @address@hidden,3@@address@hidden
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M,"(I"BL)"2 @("AC;VYS=%]I;address@hidden"DI*5T**R @(B(**R @(G-W87 @)3 B
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M(" @(" B/7(L<BQR+'(L(60L<BQR(BD*( DH;'-H:69T<address@hidden&UA=&-H
M7V]P97)A;F0Z44D@,2 B<F5G:7-T97)?;W!E<F%N9"(@(C L,"PP+# L,"PP
M+# B*0H@"0D@(" @("AM871C:%]O<&5R86YD.E%)(#(@(F=E;F5R86Q?;W!E
M<F%N9"(@(")R+$PL4"Q++&XL;BQ1;2(I*2E="B @("(B"BL@("(B*0HK"BLH
M9&5F:6YE7VEN<VY?86YD7W-P;&ET("(J;'-H<G%I,U]C;VYS=#0B"BL@(%LH
M<V5T("AM871C:%]O<&5R86YD.E%)(# @(F1?<F5G:7-T97)?;W!E<F%N9"(@
M(" @(" @(" @(" @(CUD(BD**PDH;'-H:69T<address@hidden&UA=&-H7V]P97)A
M;F0Z44D@,2 B9%]R96=I<W1E<E]O<&5R86YD(B B,"(I"BL)"2 @(" @*&-O
M;G-T7VEN=" T*2DI70HK(" B(@HK(" B(R(**R @(B(**R @address@hidden&UA
M=&-H7V1U<" P*2 H<F]T871E.E%)("AM871C:%]D=7 @,"address@hidden&-O;G-T7VEN
M=" T*2DI"BL@(" H<V5T("AM871C:%]D=7 @,"address@hidden&%N9#I122 H;6%T8VA?
M9'5P(# I("AC;VYS=%]I;G0@,34I*2E="BL@("(B*0HK"BLH9&5F:6YE7VEN
M<VY?86YD7W-P;&ET("(J;'-H<G%I,U]C;VYS=#4B"BL@(%LH<V5T("AM871C
M:%]O<&5R86YD.E%)(# @(F1?<F5G:7-T97)?;W!E<F%N9"(@(" @(" @(" @
M(" @(CUD(BD**PDH;'-H:69T<address@hidden&UA=&-H7V]P97)A;F0Z44D@,2 B
M9%]R96=I<W1E<E]O<&5R86YD(B B,"(I"BL)"2 @(" @*&-O;G-T7VEN=" U
M*2DI70HK(" B(@HK(" B(R(**R @(B(**R @address@hidden&UA=&-H7V1U<" P
M*2 H<F]T871E.E%)("AM871C:%]D=7 @,"address@hidden&-O;G-T7VEN=" T*2DI"BL@
M(" H<V5T("AM871C:%]D=7 @,"address@hidden&QS:&EF=')T.E%)("AM871C:%]D=7 @
M,"address@hidden&-O;G-T7VEN=" Q*2DI"BL@(" H<V5T("AM871C:%]D=7 
@,"address@hidden&%N
M9#I122 H;6%T8VA?9'5P(# I("AC;VYS=%]I;address@hidden @(B(I"BL*
M*RAD969I;F5?:6YS;E]A;F1?<W!L:70@(BIL<VAR<6DS7V-O;G-T-B(**R @
address@hidden&UA=&-H7V]P97)A;F0Z44D@," B9%]R96=I<W1E<E]O<&5R86YD
M(B @(" @(" @(" @(" B/60B*0HK"2AL<VAI9G1R=#I122 H;6%T8VA?;W!E
M<F%N9#I122 Q(")D7W)E9VES=&5R7V]P97)A;F0B("(P(BD**PD)(" @(" H
M8V]N<W1?:6YT(#8I*2E="BL@("(B"BL@("(C(@HK(" B(@HK("!;*'-E=" H
M;6%T8VA?9'5P(# I("AR;W1A=&address@hidden&UA=&-H7V1U<" P*2 H8V]N<W1?
M:6YT(#0I*2D**R @("address@hidden&UA=&-H7V1U<" P*2 H;'-H:69T<G0Z44D@
M*&UA=&-H7V1U<" P*2 H8V]N<W1?:6YT(#(I*2D**R @("address@hidden&UA=&-H
M7V1U<" P*2 H86YD.E%)("AM871C:%]D=7 @,"address@hidden&-O;G-T7VEN=" S*2DI
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M<FX@;'-H<G%I,address@hidden&EN<VXL(&]P97)A;F1S+"!.54Q,*3LB"B @(%LH
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M;address@hidden&UA=&-H7V1U<" P*0HK"2 @(" @(" @*&UA=&-H7V]P97)A;F0Z
M44D@,B B8V]N<W1?:6YT7V]P97)A;F0B("(B*2DI70HK(" B(@HK("!;*'-E
M=" H;6%T8VA?9'5P(# I("AA;address@hidden&UA=&-H7V1U<" P*2 H;6%T8VA?
M9'5P(#$I*2E="BL@('L**R @("!O<&5R86YD<ULQ72 ]($=%3E])address@hidden
M5%9!3" H;W!E<F%N9'-;,5TI("address@hidden,("AO<&5R86YD<ULR72DI.PHK
M("!]*0HK"B H9&5F:6YE7VEN<VX@(FQS:')H:3,B"B @(%LH<V5T("AM871C
M:%]O<&5R86YD.DA)(# @(G)E9VES=&5R7V]P97)A;F0B(" @(" @(" @(" @
M("(]<BQR+'(L<BQR+'(L<B(I"B )*&QS:&EF=')T.DA)("AM871C:%]O<&5R
M86YD.DA)(#$@(G)E9VES=&5R7V]P97)A;F0B("(P+# L,"QR+# L,"PP(BD*
`
end





reply via email to

[Prev in Thread] Current Thread [Next in Thread]