[LLVMbugs] [Bug 834] NEW: ICE (crash in code generator?) when building PCH

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=834

           Summary: ICE (crash in code generator?) when building PCH
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: emil at cs.rmit.edu.au


I'm trying to build llvm (CVS HEAD) and llvm-gcc4 (SVN HEAD) on FreeBSD 6 (and
7, same problem happens)

emil at hurtz:~/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/include>
/home/emil/NOBACKUP/llvm/obj/gcc/xgcc -shared-libgcc
-B/home/emil/NOBACKUP/llvm/obj/gcc/ -nostdinc++
-L/home/emil/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/src
-L/home/emil/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/src/.libs
-B/home/emil/NOBACKUP/llvm/install//i386-unknown-freebsd6.1/bin/
-B/home/emil/NOBACKUP/llvm/install//i386-unknown-freebsd6.1/lib/ -isystem
/home/emil/NOBACKUP/llvm/install//i386-unknown-freebsd6.1/include -isystem
/home/emil/NOBACKUP/llvm/install//i386-unknown-freebsd6.1/sys-include
-Winvalid-pch -Wno-deprecated -x c++-header -g -O2
-I/home/emil/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/include/i386-unknown-freebsd6.1
-I/home/emil/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/include
-I/home/emil/NOBACKUP/llvm/llvm-gcc4/libstdc++-v3/libsupc++
/home/emil/NOBACKUP/llvm/llvm-gcc4/libstdc++-v3/include/stdc++.h -O0 -g
/home/emil/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/include/valarray:1011:
internal compiler error: Segmentation fault: 11

Based on a backtrace, Chris Lattner said this was a bug in the code generator
and told me to do:

emil at hurtz:~/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/include>
/home/emil/NOBACKUP/llvm/obj/gcc/cc1plus -quiet -nostdinc++ -v
-I/home/emil/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/include/i386-unknown-freebsd6.1
-I/home/emil/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/include
-I/home/emil/NOBACKUP/llvm/llvm-gcc4/libstdc++-v3/libsupc++ -iprefix
/home/emil/NOBACKUP/llvm/obj/gcc/../lib/gcc/i386-unknown-freebsd6.1/4.0.1/
-isystem /home/emil/NOBACKUP/llvm/obj/gcc/include -isystem
/home/emil/NOBACKUP/llvm/install//i386-unknown-freebsd6.1/include -isystem
/home/emil/NOBACKUP/llvm/install//i386-unknown-freebsd6.1/sys-include
/home/emil/NOBACKUP/llvm/llvm-gcc4/libstdc++-v3/include/stdc++.h -quiet
-dumpbase stdc++.h -auxbase stdc++ -g -g -O2 -O0 -Winvalid-pch -Wno-deprecated
-version -emit-llvm -o ouch.ll

(above completes successfully)

emil at hurtz:~/NOBACKUP/llvm/obj/i386-unknown-freebsd6.1/libstdc++-v3/include> ~/N
OBACKUP/llvm/llvm/Release/bin/bugpoint -run-llc ouch.ll
Read input file      : 'ouch.ll'
*** All input ok
Found gcc: /usr/bin/gcc
Initializing execution environment: Running the code generator to test for a cra
sh: <llc>
Error running tool:
  /home/emil/NOBACKUP/llvm/llvm/Release/bin/llc -o bugpoint-test-program.bc.llc.
s -f bugpoint-test-program.bc
*** Debugging code generator crash!


Checking to see if we can delete global inits: <llc>
  - Removing all global inits hides problem!

*** Attempting to reduce the number of functions in the testcase
Checking for crash with only these functions:  _GLOBAL__I__home_emil_NOBACKUP_ll
vm_llvm_gcc4_libstdc___v3_include_stdc__.h_8D2A3925_54889815 _GLOBAL__D__home_em
il_NOBACKUP_llvm_llvm_gcc4_libstdc___v3_include_stdc__.h_8D2A3925_54889815 _Z41_
_static_initialization_and_destruction_0ii
: <llc><crash>
Checking for crash with only these functions:  _GLOBAL__D__home_emil_NOBACKUP_ll
vm_llvm_gcc4_libstdc___v3_include_stdc__.h_8D2A3925_54889815 _Z41__static_initia
lization_and_destruction_0ii
: <llc><crash>
Checking for crash with only these functions:  _Z41__static_initialization_and_d
estruction_0ii
: <llc><crash>
Emitted bytecode to 'bugpoint-reduced-function.bc'

Checking for crash with only these blocks: entry cond_true cond_true3 cond_false
 cond_next cond_false4 cond_next5 cond_true8 cond_true11 cond_false12... <14 tot
al>: <llc><crash>

Checking for crash with only these blocks: cond_next5 cond_true8 cond_true11 ret
urn: <llc><crash>

*** Attempting to reduce testcase by deleting instructions: Simplification Level
 #1

Checking instruction '__initialize_p_addr': <llc><crash>

Checking instruction '__priority_addr': <llc><crash>

Checking instruction 'alloca point': <llc><crash>

Checking instruction '': <llc><crash>

Checking instruction '': <llc><crash>

Checking instruction '__initialize_p': <llc><crash>

Checking instruction '': <llc><crash>

*** Attempting to reduce testcase by deleting instructions: Simplification Level
 #0

*** Attempting to perform final cleanups: 
<llc>
Emitted bytecode to 'bugpoint-reduced-simplified.bc'

I will [try to] attach the produced files.



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