[Bug target/14845] New: [tree-ssa] Alpha ev56 bootstrap error

[Bug target/14845] New: [tree-ssa] Alpha ev56 bootstrap error

[steven at gcc dot gnu dot org]

I get the following error on an ev56 for the following 
test case, for nonoptimizing and optimizing compiles: 
 
void 
foobar (void) 
{ 
  exit (0); 
} 
int 
main(void) 
{ 
  foobar (); 
} 
 
Beta:/usr/src/gcctest/build/gcc/gcc/tmp # ../cc1 20000113-1.c 
Beta:/usr/src/gcctest/build/gcc/gcc/tmp # gcc 20000113-1.s 
Beta:/usr/src/gcctest/build/gcc/gcc/tmp # ./a.out 
Illegal instruction 
 
I need to use cc1, then the system gcc because I also get 
this error for xgcc :-) 
 
Assembly look as follows: 
 
        .set noreorder 
        .set volatile 
        .set noat 
        .set nomacro 
        .text 
        .align 2 
        .globl foobar 
        .ent foobar 
foobar: 
        .frame $15,16,$26,0 
        .mask 0x4008000,-16 
        ldah $29,0($27)         !gpdisp!1 
        lda $29,0($29)          !gpdisp!1 
$foobar..ng: 
        lda $30,-16($30) 
        stq $26,0($30) 
        stq $15,8($30) 
        mov $30,$15 
        .prologue 1 
        mov $31,$16 
        ldq $27,exit($29)               !literal!2 
        jsr $26,($27),exit              !lituse_jsr!2 
        ldah $29,0($26)         !gpdisp!3 
        lda $29,0($29)          !gpdisp!3 
        .end foobar 
        .align 2 
        .globl main 
        .ent main 
main: 
        .frame $15,16,$26,0 
        .mask 0x4008000,-16 
        ldah $29,0($27)         !gpdisp!4 
        lda $29,0($29)          !gpdisp!4 
$main..ng: 
        lda $30,-16($30) 
        stq $26,0($30) 
        stq $15,8($30) 
        mov $30,$15 
        .prologue 1 
        bsr $26,foobar          !samegp 
        mov $15,$30 
        ldq $26,0($30) 
        ldq $15,8($30) 
        lda $30,16($30) 
        ret $31,($26),1 
        .end main 
        .section        .note.GNU-stack,"",@progbits 
        .ident  "GCC: (GNU) 3.5-tree-ssa 20040404 (merged 20040331)" 
 
This also prevents me from being able to bootstrap on this machine.

-- 
           Summary: [tree-ssa] Alpha ev56 bootstrap error
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: steven at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org,rth at gcc dot gnu dot
                    org
 GCC build triplet: alphaev56-unknown-linux-gnu
  GCC host triplet: alphaev56-unknown-linux-gnu
GCC target triplet: alphaev56-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14845

[Bug target/14845] [tree-ssa] Alpha ev56 bootstrap error

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical
   Target Milestone|---                         |tree-ssa


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14845

[Bug target/14845] [tree-ssa] Alpha ev56 bootstrap error

[rth at gcc dot gnu dot org]

------- Additional Comments From rth at gcc dot gnu dot org  2004-04-05 17:51 -------
There is nothing in the assembly you posted that's illegal for ev56.
I'm 99% certain that what you've done is configure your bootstrap
compiler for ev6 and the sigill comes from the crt files that you're
linking in.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14845

[Bug target/14845] [tree-ssa] Alpha ev56 bootstrap error

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2004-04-05 19:37 -------
That is not what the build log says: 
creating cache ./config.cache 
checking host system type... alphaev56-unknown-linux-gnu 
checking target system type... alphaev56-unknown-linux-gnu 
checking build system type... alphaev56-unknown-linux-gnu 
 
Anyway... 
 
$ ./cc1 --version 
GNU C version 3.5-tree-ssa 20040404 (merged 20040331) 
(alphaev56-unknown-linux-gnu) 
        compiled by GNU C version 3.2. 
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 
 
And finally from the buildlog: 
 /usr/src/gcctest/build/gcc/gcc/cc1 -quiet -v -I. -I. -I/abuild/stevenb/
tree-ssa-branch/gcc -I/abuild/stevenb/tree-ssa-branch/gcc/. -I/abuild/stevenb/
tree-ssa-branch/gcc/../include -I/abuild/stevenb/tree-ssa-branch/gcc/../
libbanshee/libcompat -I/abuild/stevenb/tree-ssa-branch/gcc/../libbanshee -I/
abuild/stevenb/tree-ssa-branch/gcc/../libbanshee/points-to -iprefix /usr/src/
gcctest/build/gcc/gcc/../lib/gcc/alphaev56-unknown-linux-gnu/3.5-tree-ssa/ 
-isystem /usr/src/gcctest/build/gcc/gcc/include -isystem /usr/src/gcctest/
install/gcc-base/alphaev56-unknown-linux-gnu/bin/include -isystem /usr/src/
gcctest/install/gcc-base/alphaev56-unknown-linux-gnu/lib/include -DIN_GCC 
-DCRT_BEGIN -isystem /usr/src/gcctest/install/gcc-base/
alphaev56-unknown-linux-gnu/include -isystem /usr/src/gcctest/install/
gcc-base/alphaev56-unknown-linux-gnu/sys-include -isystem ./include /abuild/
stevenb/tree-ssa-branch/gcc/crtstuff.c -quiet -dumpbase crtstuff.c -mcpu=ev56 
-auxbase-strip crtbegin.o -g0 -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes 
-Wmissing-prototypes -Wold-style-definition -version -finhibit-size-directive 
-fno-inline-functions -fno-exceptions -fno-zero-initialized-in-bss 
-fno-unit-at-a-time -o /tmp/ccmQlRCE.s 
 
Note the -mcpu=ev56. 
 
The bootstrap compiler is GCC 3.2: 
$ /usr/lib/gcc-lib/alpha-suse-linux/3.2/cc1 --version 
GNU C version 3.2 (alpha-suse-linux) 
        compiled by GNU C version 3.2. 
GNU CPP version 3.2 (cpplib) (Alpha GNU/Linux for ELF) 
 
 
The funny thing is that cc1 does run, but xgcc does not.  Is that 
why you think the problem is related to the crt files? 
Should I perhaps send you the crt .s files, or can I grep for some 
instruction that shouldn't be there? 
 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14845

[Bug target/14845] [tree-ssa] Alpha ev56 bootstrap error

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2004-04-05 22:42 -------
According to rth, the bsr branch in main should point to foobar+8, but the 
binutils currently installed on my machine misassemble/mislink (?) the !samegp 
relocation. 
 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14845