[Bug 598462]

[Jakub-gcc]

4.4 branch is being closed, moving to 4.5.4 target.

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https://bugs.launchpad.net/bugs/598462

Title:
   [PR38292] corrupted profile info with -O[23] -fprofile-use

Status in The GNU Compiler Collection:
  Incomplete
Status in Linaro GCC:
  Won't Fix
Status in “gcc-4.4” package in Ubuntu:
  Won't Fix
Status in “gcc-4.5” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: gcc-4.4

  seen with a profiled build (make profile-opt
  PROFILE_TASK='$(srcdir)/Lib/test/regrtest.py') building python-3.0rc3 on
  i486-linux-gnu. Using pybench as the PROFILE_TASK doesn't show this bug).

  gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O2 -Wall -Wstrict-prototypes 
  -fprofile-use -I. -IInclude -I../Include   -DPy_BUILD_CORE -o Modules/config.o
  Modules/config.c
  ../Python/thread.c: In function 'PyThread_acquire_lock':
  ../Python/thread.c:419: error: corrupted profile info: number of executions for
  edge 16-3 thought to be -1
  ../Python/thread.c:419: error: corrupted profile info: number of executions for
  edge 16-17 thought to be 5657524
  make[3]: *** [Python/thread.o] Error 1

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