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Bug 1918767

Summary: gcc crashes: lto1: fatal error: Cgraph edge statement index out of range
Product: [Fedora] Fedora Reporter: Richard W.M. Jones <rjones>
Component: gccAssignee: Jakub Jelinek <jakub>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 34CC: aoliva, dmalcolm, fweimer, jakub, jwakely, law, mpolacek, msebor, nickc, sipoyare
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Bug Blocks: 910269    

Description Richard W.M. Jones 2021-01-21 14:27:07 UTC
Description of problem:

gcc crashes compiling a small test program.

Version-Release number of selected component (if applicable):

gcc-11.0.0-0.14.fc34.x86_64

How reproducible:

100%

Steps to Reproduce:
1. Download https://github.com/libguestfs/libguestfs/blob/master/lib/libvirt-is-version.c
2. Remove <config.h> include at the top.
3. Remove lines 41 and 42 which refer to "PACKAGE".
4. Compile it like this:

$ gcc -fanalyzer -fno-common -Wall -Warith-conversion -Wbad-function-cast -Wcast-align=strict -Wdate-time -Wdisabled-optimization -Wdouble-promotion -Wduplicated-branches -Wduplicated-cond -Wextra -Wformat-signedness -Winit-self -Winvalid-pch -Wlogical-op -Wmissing-declarations -Wmissing-include-dirs -Wmissing-prototypes -Wnested-externs -Wnull-dereference -Wold-style-definition -Wopenmp-simd -Wpointer-arith -Wstrict-overflow -Wstrict-prototypes -Wsuggest-attribute=cold -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wsuggest-final-methods -Wsuggest-final-types -Wsync-nand -Wtrampolines -Wuninitialized -Wunknown-pragmas -Wunused-macros -Wvariadic-macros -Wvector-operation-performance -Wwrite-strings -Warray-bounds=2 -Wattribute-alias=2 -Wformat-overflow=2 -Wformat=2 -Wformat-truncation=2 -Wimplicit-fallthrough=5 -Wshift-overflow=2 -Wunused-const-variable=2 -Wno-analyzer-double-free -Wno-analyzer-malloc-leak -Wno-analyzer-null-dereference -Wno-analyzer-use-after-free -Wno-unused-parameter -Wno-missing-field-initializers -fdiagnostics-show-option -Wframe-larger-than=6000 -Wstack-usage=10000 -Wimplicit-fallthrough=4 -Wformat-truncation=1 -Wformat-overflow=1 -Wno-pragmas -Werror -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fno-strict-overflow -Wno-strict-overflow -Wl,-z -Wl,relro -Wl,--as-needed -Wl,-z -Wl,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -o libvirt-is-version libvirt-is-version.c  -lvirt
In function ‘argtoint’:
lto1: fatal error: Cgraph edge statement index out of range
compilation terminated.

Comment 1 Marek Polacek 2021-01-21 14:31:02 UTC
Patch available upstream:
https://gcc.gnu.org/pipermail/gcc-patches/2021-January/563416.html

Comment 2 Richard W.M. Jones 2021-01-21 14:32:31 UTC
Smaller test case:

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <error.h>

static unsigned int argtoint (const char *prog, const char *arg);

int main (void) { printf ("%u\n", argtoint ("hello", "world")); exit (0); }

static unsigned int
argtoint (const char *prog, const char *arg)
{
  long int res;
  char *endptr;

  errno = 0;
  res = strtol (arg, &endptr, 10);
  if (errno || *endptr)
    error (EXIT_FAILURE, 0, "cannot parse integer argument '%s'", arg);

  return (unsigned int) res;
}

-----

$ gcc -fanalyzer -fno-common -Wall -Warith-conversion -Wbad-function-cast -Wcast-align=strict -Wdate-time -Wdisabled-optimization -Wdouble-promotion -Wduplicated-branches -Wduplicated-cond -Wextra -Wformat-signedness -Winit-self -Winvalid-pch -Wlogical-op -Wmissing-declarations -Wmissing-include-dirs -Wmissing-prototypes -Wnested-externs -Wnull-dereference -Wold-style-definition -Wopenmp-simd -Wpointer-arith -Wstrict-overflow -Wstrict-prototypes -Wsuggest-attribute=cold -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wsuggest-final-methods -Wsuggest-final-types -Wsync-nand -Wtrampolines -Wuninitialized -Wunknown-pragmas -Wunused-macros -Wvariadic-macros -Wvector-operation-performance -Wwrite-strings -Warray-bounds=2 -Wattribute-alias=2 -Wformat-overflow=2 -Wformat=2 -Wformat-truncation=2 -Wimplicit-fallthrough=5 -Wshift-overflow=2 -Wunused-const-variable=2 -Wno-analyzer-double-free -Wno-analyzer-malloc-leak -Wno-analyzer-null-dereference -Wno-analyzer-use-after-free -Wno-unused-parameter -Wno-missing-field-initializers -fdiagnostics-show-option -Wframe-larger-than=6000 -Wstack-usage=10000 -Wimplicit-fallthrough=4 -Wformat-truncation=1 -Wformat-overflow=1 -Wno-pragmas -Werror -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fno-strict-overflow -Wno-strict-overflow -Wl,-z -Wl,relro -Wl,--as-needed -Wl,-z -Wl,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -o argtoint argtoint.c 
argtoint.c: In function ‘argtoint’:
argtoint.c:9:5: fatal error: Cgraph edge statement index out of range
    9 | int main (void) { printf ("%u\n", argtoint ("hello", "world")); exit (0); }
      |     ^
compilation terminated.
make: *** [/tmp/ccuwY2M0.mk:2: /tmp/ccDvJlVX.ltrans0.ltrans.o] Error 1
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status

Comment 3 Richard W.M. Jones 2021-01-21 14:33:42 UTC
Thanks, is this going to be fixed by
https://koji.fedoraproject.org/koji/buildinfo?buildID=1671837 ?

It doesn't look like this fix is mentioned in the %changelog.

Comment 4 Marek Polacek 2021-01-21 14:37:16 UTC
(In reply to Richard W.M. Jones from comment #3)
> Thanks, is this going to be fixed by
> https://koji.fedoraproject.org/koji/buildinfo?buildID=1671837 ?
> 
> It doesn't look like this fix is mentioned in the %changelog.

Right, I think the patch hasn't yet been approved.  But hopefully it will be soon.  A workaround is to turn off -fanalyzer.

Comment 5 Dave Malcolm 2021-01-21 14:37:33 UTC
The patch isn't in upstream git yet; looks like I need to respond to comments from Honza on the upstream mailing list

Comment 6 Ben Cotton 2021-02-09 15:42:04 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 34 development cycle.
Changing version to 34.