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From: Richard Earnshaw <rearnsha@arm.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: target/5107: ICE when building an ARM/Thumb cross compiler for/on HP-UX. Date: Fri, 14 Dec 2001 02:56:00 -0000 [thread overview] Message-ID: <20011214105601.9433.qmail@sources.redhat.com> (raw) The following reply was made to PR target/5107; it has been noted by GNATS. From: Richard Earnshaw <rearnsha@arm.com> To: Klaus.k.pedersen@nokia.com Cc: gcc-gnats@gcc.gnu.org, Richard.Earnshaw@arm.com Subject: Re: target/5107: ICE when building an ARM/Thumb cross compiler for/on HP-UX. Date: Fri, 14 Dec 2001 10:53:25 +0000 > I am trying to build an ARM/THUMB cross compiler on HP-UX 11 and > HP-UX 10.20. It doesn't work, even with the latest snapshot. Hmm, I built just the C compiler on our HPUX-11 machine and didn't see this problem... > When xgcc is building the "thumb libgcc2" version of muldi3 it > stops with an internal error: > > ------------- > ../../gcc-20011203/gcc/libgcc2.c: In function `__muldi3': > ../../gcc-20011203/gcc/libgcc2.c:367: could not split insn > > (insn 175 70 72 (set (reg:SI 2 r2) > (const_int 65536 [0x10000])) 176 {*thumb_movsi_insn} (nil) > (nil)) The compiler certainly has a define_split that should match this (and that is indeed what happens on the Sun dump you posted). > When you compare the dumps from the machines side-by-side, you > will notice that there are not a single pair that are equal ! > ------------- > coicxxx -> diff hp-dumps/libgcc2.i.00.rtl sun-dumps/libgcc2.i.00.rtl > 16c16 > < (note 9 7 15 7bf703c0 NOTE_INSN_BLOCK_BEG) > --- > > (note 9 7 15 4003c0 NOTE_INSN_BLOCK_BEG) > 26c26 > < (note 19 17 22 7bf70380 NOTE_INSN_BLOCK_BEG) > --- > > (note 19 17 22 400380 NOTE_INSN_BLOCK_BEG) > [...] These are pointers (don't know why they are useful, and yes, they do make comparing across machines a pain). So there isn't a problem here. The problem first shows up in dump 23 (ie some between postreload and flow2). It's most likely in a "split_all_insns" pass, which should turn the pseudo instruction set r2 = 65536 into the real thumb instructions set r2 = 128 set r2 = r2 << 9 > My configure string: > ------------- > ../gcc-20011203/configure \ > --prefix=/opt/arm-elf-gcc --target=arm-elf --nfp \ > --enable-languages=c,c++ --with-dwarf2 --enable-target-optspace \ > --with-as=/opt/arm-elf-gcc/bin/arm-elf-as \ > --with-ld=/opt/arm-elf-gcc/bin/arm-elf-ld What *native* compiler where you using to build your cross-compiler? gcc? if so, which version? I used the HP compiler and as mentioned, didn't see a problem (but that can't build the c++ compiler).
next reply other threads:[~2001-12-14 10:56 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2001-12-14 2:56 Richard Earnshaw [this message] -- strict thread matches above, loose matches on Subject: below -- 2002-03-15 3:14 rearnsha 2002-03-04 17:36 Craig Rodrigues 2001-12-17 6:36 Klaus Pedersen 2001-12-17 2:36 Klaus Pedersen 2001-12-15 8:46 Richard Earnshaw 2001-12-14 10:16 Richard Earnshaw 2001-12-14 9:56 Klaus Pedersen 2001-12-13 14:46 Klaus.k.pedersen
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