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From: p.van-hoof@Queens-Belfast.AC.UK (Peter van Hoof) To: gcc-gnats@gcc.gnu.org Subject: c/5681: gcc 3.0.3 produces wrong assembler code Date: Wed, 13 Feb 2002 04:16:00 -0000 [thread overview] Message-ID: <20020213115943.AA8B747130@archer.pst.qub.ac.uk> (raw) >Number: 5681 >Category: c >Synopsis: gcc 3.0.3 produces wrong assembler code >Confidential: no >Severity: critical >Priority: medium >Responsible: unassigned >State: open >Class: wrong-code >Submitter-Id: net >Arrival-Date: Wed Feb 13 04:16:00 PST 2002 >Closed-Date: >Last-Modified: >Originator: Peter van Hoof >Release: 3.0.3 >Organization: Queen's University Belfast >Environment: System: Linux archer.pst.qub.ac.uk 2.4.2-2 #1 Sun Apr 8 20:41:30 EDT 2001 i686 unknown Architecture: i686 <machine, os, target, libraries (multiple lines)> host: i686-pc-linux-gnu build: i686-pc-linux-gnu target: i686-pc-linux-gnu configured with: ./configure --prefix=/usr/local/gcc3 >Description: The compiler generates wrong assembler code in non-optimized mode, but works correctly in optimized mode (-O1, -O2, or -O3). >How-To-Repeat: archer.pst.qub.ac.uk> gcc -v -save-temps -ansi -g rtoptdepthinit.c Reading specs from /usr/local/gcc3/lib/gcc-lib/i686-pc-linux-gnu/3.0.3/specs Configured with: ../gcc-3.0.3/configure --prefix=/usr/local/gcc3 Thread model: single gcc version 3.0.3 /usr/local/gcc3/lib/gcc-lib/i686-pc-linux-gnu/3.0.3/cpp0 -lang-c -std=c89 -v -D__GNUC__=3 -D__GNUC_MINOR__=0 -D__GNUC_PATCHLEVEL__=3 -D__ELF__ -D__unix__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -Acpu=i386 -Amachine=i386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ rtoptdepthinit.c rtoptdepthinit.i GNU CPP version 3.0.3 (cpplib) (i386 Linux/ELF) ignoring nonexistent directory "/usr/local/gcc3/i686-pc-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/local/gcc3/lib/gcc-lib/i686-pc-linux-gnu/3.0.3/include /usr/include End of search list. /usr/local/gcc3/lib/gcc-lib/i686-pc-linux-gnu/3.0.3/cc1 -fpreprocessed rtoptdepthinit.i -quiet -dumpbase rtoptdepthinit.c -ansi -g -ansi -version -o rtoptdepthinit.s GNU CPP version 3.0.3 (cpplib) (i386 Linux/ELF) GNU C version 3.0.3 (i686-pc-linux-gnu) compiled by GNU C version 3.0.3. as --traditional-format -V -Qy -o rtoptdepthinit.o rtoptdepthinit.s GNU assembler version 2.10.91 (i386-redhat-linux) using BFD version 2.10.91.0.2 /usr/local/gcc3/lib/gcc-lib/i686-pc-linux-gnu/3.0.3/collect2 -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 /usr/lib/crt1.o /usr/lib/crti.o /usr/local/gcc3/lib/gcc-lib/i686-pc-linux-gnu/3.0.3/crtbegin.o -L/usr/local/gcc3/lib/gcc-lib/i686-pc-linux-gnu/3.0.3 -L/usr/local/gcc3/lib/gcc-lib/i686-pc-linux-gnu/3.0.3/../../.. rtoptdepthinit.o -lgcc -lc -lgcc /usr/local/gcc3/lib/gcc-lib/i686-pc-linux-gnu/3.0.3/crtend.o /usr/lib/crtn.o archer.pst.qub.ac.uk> a.out 2241 3383 3383 3383 a.out: rtoptdepthinit.c:19: RTOptDepthInit: Assertion `StopCalc.iptnu < rfield.nupper-1' failed. Abort The correct output would have been: archer.pst.qub.ac.uk> gcc -O1 -ansi -g rtoptdepthinit.c archer.pst.qub.ac.uk> a.out 2241 3383 2241 3383 begin 644 rtoptdepthinit.i.bz2 M0EIH.3%!629369;B"/H`!S!_@'UV]L-?=___O^_?KK____I@%#]X`5<+==N# M<8W<V[(U:@V`/MX'L)>A0Z=.G-A61HZ!UU7;3K:CC=%#A)$F@)DPA&`*:GE, M](C"#U#30>HT-#U!IHT!A!H)301-$"2-DR93TF31Z(T&@#0`#0``:&3)HT.` M!H#0-``TTR``T:9`!HR8(#$``"322)"9&HS5#Q1M!'D$Q--#)AI,:(!IZF!- MH-)IA!I2-````$TP````)B8``````B2$$F!&C2:"GC1,J>1ZH?J;*)ID\H#$ M`&0``:;01];W4D(R)(@0D%`A`$B`IY\D_!\A@=Q(=L0J1$@&#>Y20K-P6$6* M1$=%5/L9G!AIAL%6BR(J"D7\>#F*BP6"NJ%#86Z<RR%$B@=IQA<KB?J<.*`L M(HCDC0<U2C"3$68Q1<F,1F<&F*BR6V*UM:MEBE>,^FS;D3:("B)QWDUK913B M2HJ(@HJBC%8P61$11501B.PM:*6,;2HEC(UBT0*JK:BV65:5I2E84111@H(C M%HE6BC8LHRLM[_2GTG4'^VW_?+4#3\];8=5__.M15:3MB]I(3NZ6;W*P4K+J MRL6*C%F6@`*$FQ+8B6B4PD&121D+Q>[I\7Y_?+_+Y?.S;.^5QK;=Y07JT%JQ M=Z:LK*8:XC!AY0SSE#U?+$7F[P\JJB(%DK3>PLBU6OR/6W]1'>[7)^C-7(R3 M=QCP=SP1_.?=RJU^_\F,=->$2+2_5%GG.:V!\>[;H9E@T,3!',MZM`RMGFPZ M,PU:9?%W](^KEX7`Z]%8AW0)-SA5J:P&*O<Q@P!LBW`R&!=(_>AE&YM+)&FV M11@9:A3AA)FUUA:<$QPM=F!WQ7MEDJ]%.>^8\\_L9-HM+:_%.YW#Y029`G=! 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M4==+4%M`RH,@F#!1ZZA;LF*03]1;GVXN7P'H(@9GZB^44HJK!O2/;1MT_=.2 M4,BW@(Y@$;W$L,AFT5/(N*<!#I6)6X7UX-5$V@)1TCUSX;<KW.D#1`]($])$ MM]?(S-!W>797=,*`\:P&3HS=H92"$B:'FT+C.Z7W;@NA#!BDVUHN>C+X/(\] M`L)I:QT-;$AQ3!L"<TM19X@!@\1$&8@3(<[*;8K2E0)$IE&LMUV#/6'Y2T,E M`=Y+(T;_[-A@#ZA0F@<B.08`[,-"A;1V%U,K<+=4N$SSWQ7-`,AUPHF?CHMB M*H'-B9RQ%LV.JUV":\W$DD=Z"6*M^BXWVN[V+OSQY]@"=2*3I:&EE$[]Q*:A M4PBG(^'U6$2H)YLO`>:0.0>RM4.K2F1FS8H'E;\$_#1TCYQYS38<XX401"H4 ME(<A('2L@EPB(VL*3.BN7"PZ!LCQ?KR0]R[U=32#<$;D5IBLA@_/.*NG):+C ML1=`9)8,)O>Q.GA*8'%MH?2`F=GW^!K2@F5S:!YK7'+6SS.-!"E2&F18V3(A MC`=4Z:3H+BGD+10`@@J"JBFU5*UBG/1]"`&I'\54)(!;4L-E,U`9^%4J+VDF M-L1-6="YNK(!RZJV.$LS#\>WR10EK`F`1P5BEAY"2!VSR#EP9J4.6"2-:#>B MX=1M$W&8"$"?/NKBTOLL!]1'-($C*'+Q5@D;8/%,&;$H5Q8'?=`=@@XJ^VZ# MK4((\"VG"09L58P`X:QMEA8-.SG%)B)9;T.ZEX3<A9P5,TY!,[AR0FD44@H* M!H];Z/5&AF&]7V>*"4DSNQC7K4U80CV+00*:%XB='7"A1)Y))9\$A\E/=4E" MM4KEZ#6K*FBH80_>@B=U_BF7RPRCUVZ*/WG+Q<9>IV3RF<P^J^3%8%KT6`MS M90,"ZD"!>B,.]L*8)"VL6!1)"XW+(JP6%&Q159:);9$HQL!(Q-V!BQK*.B`; M%)<L4%-1DAK82[2*A7K(4@/9)5$017*BA,TN34"L-<(9FQ5M+B16>(8"@KMV MB6"Z+P[,QA%(LGIN(XHU2;R<AXXL%80DH:%.+L"UC-.H8KU6TV:LTX()DIN& M`ANV!A:"A]6S>F0WB&]L`@W*P*@"K&77$"BO28YT$ZDP[@D6%`N6V!02V;$V M`&%3[BQ03KVFAV(:ASG%<X!A<>1?O17RPD`KRT_;>EY0D`J(T0?,/?V"+\NQ M0^(G%.>!Z`IF"#RR\0=/A*@]-.V!H%6,J?+TS$]-Z@P=3!U,ER^IQ+(KPHW< M"X#DXA>09//%IWJ`_6UU4,?$.]:V6,\@$@3=$D$?5`>I#;IAAPN8*/V&20($ MGG@GHE@AM3+,=C5'&N*F57GMRUPE^^#P]MX`GZ#C4(PT$$QZNOXE7_DKYX04 =Y=*]ZCOW]T8^^$JL4J+**P/_B[DBG"A(2W$$?0`` ` end >Fix: Apart from using optimized mode, no workaround is known. >Release-Note: >Audit-Trail: >Unformatted: SEND-PR: -*- send-pr -*- SEND-PR: Lines starting with `SEND-PR' will be removed automatically, as SEND-PR: will all comments (text enclosed in `<' and `>'). SEND-PR: SEND-PR: Please consult the GCC manual if you are not sure how to SEND-PR: fill out a problem report. SEND-PR: Note that the Synopsis field is mandatory. The Subject (for SEND-PR: the mail) will be made the same as Synopsis unless explicitly SEND-PR: changed. SEND-PR: SEND-PR: Choose from the following categories: SEND-PR: SEND-PR: bootstrap c++ c debug fortran java libf2c libgcj libobjc libstdc++ middle-end objc optimization other preprocessor target web SEND-PR: SEND-PR: To: gcc-gnats@gcc.gnu.org Subject: gcc 3.0.3 produces wrong assembler code From: p.van-hoof@qub.ac.uk Reply-To: p.van-hoof@qub.ac.uk Cc: X-send-pr-version: 3.113 X-GNATS-Notify: SEND-PR: Leave "Confidential" as "no"; all GCC PRs are public. SEND-PR: critical GCC is completely not operational; no work-around known. SEND-PR: serious GCC is not working properly; a work-around is possible. SEND-PR: non-critical Report indicates minor problem. SEND-PR: medium The problem should be solved in the next release. SEND-PR: low The problem should be solve in a future release. SEND-PR: doc-bug The documentation is incorrect. SEND-PR: accepts-illegal GCC fails to reject erroneous code. SEND-PR: rejects-legal GCC gives an error message for correct code. SEND-PR: wrong-code The machine code generated by gcc is incorrect. SEND-PR: ice-on-legal-code GCC gives an Internal Compiler Error (ICE) SEND-PR: for correct code SEND-PR: ice-on-illegal-code GCC gives an ICE instead of reporting an error SEND-PR: pessimizes-code GCC misses an important optimization opportunity SEND-PR: sw-bug Software bug of some other class than above SEND-PR: change-request A feature in GCC is missing. SEND-PR: support I need help with gcc.
next reply other threads:[~2002-02-13 12:16 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-02-13 4:16 Peter van Hoof [this message] 2002-02-13 5:54 jakub 2002-02-13 14:23 jakub
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