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* [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 @ 2007-02-16 16:14 jvb at wongr dot net 2007-02-23 0:43 ` [Bug target/30825] [4.3 Regression] " pinskia at gcc dot gnu dot org ` (7 more replies) 0 siblings, 8 replies; 9+ messages in thread From: jvb at wongr dot net @ 2007-02-16 16:14 UTC (permalink / raw) To: gcc-bugs Hi, current mainline (revision 122038) produces an ICE in stage 2 when configured with --with-arch=athlon64: ~/rcs-data/gcc-svn/configure --prefix=$HOME/env/gcc --enable-languages=c --with-arch=athlon64 && make ... /home/julian/build/bld.gcc/./gcc/xgcc -B/home/julian/build/bld.gcc/./gcc/ -B/home/julian/env/gcc/i686-pc-linux-gnu/bin/ -B/home/julian/env/gcc/i686-pc-linux-gnu/lib/ -isystem /home/julian/env/gcc/i686-pc-linux-gnu/include -isystem /home/julian/env/gcc/i686-pc-linux-gnu/sys-include -O2 -g -O2 -O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../.././gcc -I/home/julian/rcs-data/gcc-svn/libgcc -I/home/julian/rcs-data/gcc-svn/libgcc/. -I/home/julian/rcs-data/gcc-svn/libgcc/../gcc -I/home/julian/rcs-data/gcc-svn/libgcc/../include -I/home/julian/rcs-data/gcc-svn/libgcc/../libdecnumber -I../../libdecnumber -o _fixunsxfdi.o -MT _fixunsxfdi.o -MD -MP -MF _fixunsxfdi.dep -DL_fixunsxfdi -c /home/julian/rcs-data/gcc-svn/libgcc/../gcc/libgcc2.c \ -fvisibility=hidden -DHIDE_EXPORTS /home/julian/rcs-data/gcc-svn/libgcc/../gcc/libgcc2.c: In function '__fixunsxfdi': /home/julian/rcs-data/gcc-svn/libgcc/../gcc/libgcc2.c:1245: error: verify_flow_info: Wrong probability of edge 7->9 -2147483648 /home/julian/rcs-data/gcc-svn/libgcc/../gcc/libgcc2.c:1245: error: verify_flow_info: Wrong probability of edge 7->8 -2147473648 /home/julian/rcs-data/gcc-svn/libgcc/../gcc/libgcc2.c:1245: internal compiler error: verify_flow_info failed Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. make[3]: *** [_fixunsxfdi.o] Error 1 make[3]: Leaving directory `/home/julian/build/bld.gcc/i686-pc-linux-gnu/libgcc' make[2]: *** [all-stage2-target-libgcc] Error 2 make[2]: Leaving directory `/home/julian/build/bld.gcc' make[1]: *** [stage2-bubble] Error 2 make[1]: Leaving directory `/home/julian/build/bld.gcc' make: *** [all] Error 2 When configured without --with-arch=athlon64 the build succeeds. The problem has probably been introduced since 2007-02-09. -- Summary: current mainline fails to bootstrap with --with- arch=athlon64 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jvb at wongr dot net GCC host triplet: i386-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap with --with-arch=athlon64 2007-02-16 16:14 [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 jvb at wongr dot net @ 2007-02-23 0:43 ` pinskia at gcc dot gnu dot org 2007-02-23 0:43 ` pinskia at gcc dot gnu dot org ` (6 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2007-02-23 0:43 UTC (permalink / raw) To: gcc-bugs -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Component|bootstrap |target Summary|current mainline fails to |[4.3 Regression] current |bootstrap with --with- |mainline fails to bootstrap |arch=athlon64 |with --with-arch=athlon64 Target Milestone|--- |4.3.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap with --with-arch=athlon64 2007-02-16 16:14 [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 jvb at wongr dot net 2007-02-23 0:43 ` [Bug target/30825] [4.3 Regression] " pinskia at gcc dot gnu dot org @ 2007-02-23 0:43 ` pinskia at gcc dot gnu dot org 2007-02-23 7:34 ` ubizjak at gmail dot com ` (5 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2007-02-23 0:43 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from pinskia at gcc dot gnu dot org 2007-02-23 00:43 ------- *** Bug 30921 has been marked as a duplicate of this bug. *** -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |irar at il dot ibm dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap with --with-arch=athlon64 2007-02-16 16:14 [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 jvb at wongr dot net 2007-02-23 0:43 ` [Bug target/30825] [4.3 Regression] " pinskia at gcc dot gnu dot org 2007-02-23 0:43 ` pinskia at gcc dot gnu dot org @ 2007-02-23 7:34 ` ubizjak at gmail dot com 2007-02-23 10:22 ` ubizjak at gmail dot com ` (4 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: ubizjak at gmail dot com @ 2007-02-23 7:34 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from ubizjak at gmail dot com 2007-02-23 07:34 ------- It is -msse that breaks the bootstrap. 'gmake bootstrap BOOT_CFLAGS="-O2"' bootstraps OK. 'gmake bootstrap BOOT_CFLAGS="-O2 -msse"' crashes. -- ubizjak at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2007-02-23 07:34:39 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap with --with-arch=athlon64 2007-02-16 16:14 [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 jvb at wongr dot net ` (2 preceding siblings ...) 2007-02-23 7:34 ` ubizjak at gmail dot com @ 2007-02-23 10:22 ` ubizjak at gmail dot com 2007-02-23 13:54 ` [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap when -msse is used ubizjak at gmail dot com ` (3 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: ubizjak at gmail dot com @ 2007-02-23 10:22 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from ubizjak at gmail dot com 2007-02-23 10:22 ------- There is something wrong in combine_predictions_for_insn(). Perhaps stack gets corrupted, but from the comment: /* Use FP math to avoid overflows of 32bit integers. */ combined_probability variable is _sometimes_ calculated as nan. Tracing through asm, it looks that it happens because fildl from stack loads 0x00001388, pushed to stack earlier. BTW: For some reason gdb can't trace through this source, so it is really something strange going on. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap when -msse is used 2007-02-16 16:14 [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 jvb at wongr dot net ` (3 preceding siblings ...) 2007-02-23 10:22 ` ubizjak at gmail dot com @ 2007-02-23 13:54 ` ubizjak at gmail dot com 2007-02-23 16:12 ` rth at gcc dot gnu dot org ` (2 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: ubizjak at gmail dot com @ 2007-02-23 13:54 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from ubizjak at gmail dot com 2007-02-23 13:54 ------- Got it. This regression is indeed introduced by patch that fixes inter-unit moves (http://gcc.gnu.org/viewcvs?view=rev&revision=121767) as was found out in PR 30921. The failure is due to slight register preference change introduced by the above patch. The consequence of this change is, that a mmx register is allocated when -mmmx (or -msseX) is used in bootstrap flags. This affects all subsequent x87 FP calculations, so they always show "nan" in active shared x87/mm registers due to missing emms insn. Attached patch tries to set register preferences back as they were before inter-unit moves patch. Using this patch, I was able to bootstrap gcc using "-O2 -msse" and "-O2 -march=pentium4" BOOT_CFLAGS. For the former case, patch was also regression tested for c testsuite without new failures. 2007-02-23 Uros Bizjak <ubizjak@gmail.com> * config/i386/i386.md (*movdi_1_rex64, zero_extendsidi2_32, zero_extendsidi2_rex64): Penalize MMX register<->memory moves. (*movsf_1): Penalize MMX moves. Index: i386.md =================================================================== --- i386.md (revision 122219) +++ i386.md (working copy) @@ -2022,9 +2022,9 @@ (define_insn "*movdi_1_rex64" [(set (match_operand:DI 0 "nonimmediate_operand" - "=r,r ,r,m ,!m,*y,*y,?r ,m ,?*Ym,*y,*x,*x,?r ,m,?*Yi,*x,?*x,?*Ym") + "=r,r ,r,m ,!m,*y,*y,?r ,?m,?*Ym,?*y,*x,*x,?r ,m,?*Yi,*x,?*x,?*Ym") (match_operand:DI 1 "general_operand" - "Z ,rem,i,re,n ,C ,*y,*Ym,*y,r ,m ,C ,*x,*Yi,*x,r ,m ,*Ym,*x"))] + "Z ,rem,i,re,n ,C ,*y,*Ym,*y,r ,m ,C ,*x,*Yi,*x,r ,m ,*Ym,*x"))] "TARGET_64BIT && !(MEM_P (operands[0]) && MEM_P (operands[1]))" { switch (get_attr_type (insn)) @@ -2326,9 +2326,9 @@ (define_insn "*movsf_1" [(set (match_operand:SF 0 "nonimmediate_operand" - "=f,m,f,r ,m ,x,x,x ,m,*y,m ,*y,Yi,r ,*Ym,r ") + "=f,m,f,r ,m ,x,x,x ,m,!*y,!m ,!*y,!Yi,!r ,!*Ym,!r ") (match_operand:SF 1 "general_operand" - "fm,f,G,rmF,Fr,C,x,xm,x,m ,*y,*y,r ,Yi,r ,*Ym"))] + "fm,f,G,rmF,Fr,C,x,xm,x,m , *y, *y,r ,Yi ,r ,*Ym"))] "!(MEM_P (operands[0]) && MEM_P (operands[1])) && (reload_in_progress || reload_completed || (ix86_cmodel == CM_MEDIUM || ix86_cmodel == CM_LARGE) @@ -3401,9 +3401,9 @@ }) (define_insn "zero_extendsidi2_32" - [(set (match_operand:DI 0 "nonimmediate_operand" "=r,?r,?o,?*Ym,*y,?*Yi,*Y2") + [(set (match_operand:DI 0 "nonimmediate_operand" "=r,?r,?o,?*Ym,?*y,?*Yi,?*Y2") (zero_extend:DI - (match_operand:SI 1 "nonimmediate_operand" "0,rm,r ,r ,m ,r ,m"))) + (match_operand:SI 1 "nonimmediate_operand" "0,rm,r ,r ,m ,r ,m"))) (clobber (reg:CC FLAGS_REG))] "!TARGET_64BIT" "@ @@ -3418,9 +3418,9 @@ (set_attr "type" "multi,multi,multi,mmxmov,mmxmov,ssemov,ssemov")]) (define_insn "zero_extendsidi2_rex64" - [(set (match_operand:DI 0 "nonimmediate_operand" "=r,o,?*Ym,*y,?*Yi,*Y2") + [(set (match_operand:DI 0 "nonimmediate_operand" "=r,o,?*Ym,?*y,?*Yi,?*Y2") (zero_extend:DI - (match_operand:SI 1 "nonimmediate_operand" "rm,0,r ,m ,r ,m")))] + (match_operand:SI 1 "nonimmediate_operand" "rm,0,r ,m ,r ,m")))] "TARGET_64BIT" "@ mov\t{%k1, %k0|%k0, %k1} -- ubizjak at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rth at gcc dot gnu dot org Severity|normal |critical Keywords| |ssemmx Summary|[4.3 Regression] current |[4.3 Regression] current |mainline fails to bootstrap |mainline fails to bootstrap |with --with-arch=athlon64 |when -msse is used http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap when -msse is used 2007-02-16 16:14 [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 jvb at wongr dot net ` (4 preceding siblings ...) 2007-02-23 13:54 ` [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap when -msse is used ubizjak at gmail dot com @ 2007-02-23 16:12 ` rth at gcc dot gnu dot org 2007-02-23 18:19 ` uros at gcc dot gnu dot org 2007-02-23 18:21 ` ubizjak at gmail dot com 7 siblings, 0 replies; 9+ messages in thread From: rth at gcc dot gnu dot org @ 2007-02-23 16:12 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from rth at gcc dot gnu dot org 2007-02-23 16:12 ------- Subject: Re: [4.3 Regression] current mainline fails to bootstrap when -msse is used On Fri, Feb 23, 2007 at 01:54:35PM -0000, ubizjak at gmail dot com wrote: > * config/i386/i386.md (*movdi_1_rex64, zero_extendsidi2_32, > zero_extendsidi2_rex64): Penalize MMX register<->memory moves. > (*movsf_1): Penalize MMX moves. Ok. I guess I really need to get around to disabling mmx when it's not supposed to be used. r~ -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap when -msse is used 2007-02-16 16:14 [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 jvb at wongr dot net ` (5 preceding siblings ...) 2007-02-23 16:12 ` rth at gcc dot gnu dot org @ 2007-02-23 18:19 ` uros at gcc dot gnu dot org 2007-02-23 18:21 ` ubizjak at gmail dot com 7 siblings, 0 replies; 9+ messages in thread From: uros at gcc dot gnu dot org @ 2007-02-23 18:19 UTC (permalink / raw) To: gcc-bugs ------- Comment #6 from uros at gcc dot gnu dot org 2007-02-23 18:19 ------- Subject: Bug 30825 Author: uros Date: Fri Feb 23 18:19:07 2007 New Revision: 122268 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122268 Log: PR target/30825 * config/i386/i386.md (*movdi_1_rex64, zero_extendsidi2_32, zero_extendsidi2_rex64): Penalize MMX register<->memory moves. (*movsf_1): Penalize MMX moves. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.md -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30825 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap when -msse is used 2007-02-16 16:14 [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 jvb at wongr dot net ` (6 preceding siblings ...) 2007-02-23 18:19 ` uros at gcc dot gnu dot org @ 2007-02-23 18:21 ` ubizjak at gmail dot com 7 siblings, 0 replies; 9+ messages in thread From: ubizjak at gmail dot com @ 2007-02-23 18:21 UTC (permalink / raw) To: gcc-bugs ------- Comment #7 from ubizjak at gmail dot com 2007-02-23 18:20 ------- Fixed on mainline. -- ubizjak at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30825 ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2007-02-23 18:21 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2007-02-16 16:14 [Bug bootstrap/30825] New: current mainline fails to bootstrap with --with-arch=athlon64 jvb at wongr dot net 2007-02-23 0:43 ` [Bug target/30825] [4.3 Regression] " pinskia at gcc dot gnu dot org 2007-02-23 0:43 ` pinskia at gcc dot gnu dot org 2007-02-23 7:34 ` ubizjak at gmail dot com 2007-02-23 10:22 ` ubizjak at gmail dot com 2007-02-23 13:54 ` [Bug target/30825] [4.3 Regression] current mainline fails to bootstrap when -msse is used ubizjak at gmail dot com 2007-02-23 16:12 ` rth at gcc dot gnu dot org 2007-02-23 18:19 ` uros at gcc dot gnu dot org 2007-02-23 18:21 ` ubizjak at gmail dot com
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