http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51356
Bug #: 51356
Summary: [4.7 Regression] FAIL: gfortran.dg/anyallcount_1.f90
-O3 (internal compiler error) on
powerpc-apple-darwin9 with -m32
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: domi...@lps.ens.fr
CC: ia...@gcc.gnu.org, i...@gcc.gnu.org, ja...@gcc.gnu.org
Host: powerpc-apple-darwin9
Target: powerpc-apple-darwin9
Build: powerpc-apple-darwin9
Between revisions 181105 (OK) and 181301, the following tests have started to
fail on powerpc-apple-darwin9 with -m32:
FAIL: gfortran.dg/anyallcount_1.f90 -O3 -fomit-frame-pointer (internal
compiler error)
FAIL: gfortran.dg/anyallcount_1.f90 -O3 -fomit-frame-pointer (test for excess
errors)
WARNING: gfortran.dg/anyallcount_1.f90 -O3 -fomit-frame-pointer compilation
failed to produce executable
FAIL: gfortran.dg/anyallcount_1.f90 -O3 -fomit-frame-pointer -funroll-loops
(internal compiler error)
FAIL: gfortran.dg/anyallcount_1.f90 -O3 -fomit-frame-pointer -funroll-loops
(test for excess errors)
WARNING: gfortran.dg/anyallcount_1.f90 -O3 -fomit-frame-pointer -funroll-loops
compilation failed to produce executable
FAIL: gfortran.dg/anyallcount_1.f90 -O3 -fomit-frame-pointer
-funroll-all-loops -finline-functions (internal compiler error)
FAIL: gfortran.dg/anyallcount_1.f90 -O3 -fomit-frame-pointer
-funroll-all-loops -finline-functions (test for excess errors)
WARNING: gfortran.dg/anyallcount_1.f90 -O3 -fomit-frame-pointer
-funroll-all-loops -finline-functions compilation failed to produce executable
FAIL: gfortran.dg/anyallcount_1.f90 -O3 -g (internal compiler error)
FAIL: gfortran.dg/anyallcount_1.f90 -O3 -g (test for excess errors)
WARNING: gfortran.dg/anyallcount_1.f90 -O3 -g compilation failed to produce
executable
This can be reproduced with '-O2 -ftree-vectorize' on the following reduced
test:
program main
implicit none
character(len=*), parameter :: f='(3L1)'
character(len=*), parameter :: g='(3I1)'
real, dimension(3,3) :: a
logical(kind=8), dimension(3,3) :: m8
character(len=3) :: res
data a /-1.0, -2.0, -3.0, 2.0, 1.0, -2.1, 1.0, 2.0, 3.0 /
m8 = a > 0
write (unit=res,fmt=f) any(m8,dim=1)
if (res /= 'FTT') call abort
write (unit=res,fmt=f) any(m8,dim=2)
if (res /= 'TTT') call abort
write (unit=res,fmt=f) all(m8,dim=1)
if (res /= 'FFT') call abort
write (unit=res,fmt=f) all(m8,dim=2)
if (res /= 'FFF') call abort
write (unit=res,fmt=g) count(m8,dim=1)
if (res /= '023') call abort
write (unit=res,fmt=g) count(m8,dim=2)
if (res /= '221') call abort
end program main
[karma] /Users/dominiq% gfc -O2 -ftree-vectorize anyallcount_1_red.f90
anyallcount_1_red.f90: In function 'MAIN__':
anyallcount_1_red.f90:2:0: internal compiler error: Bus error
The backtrace I get is
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x0000000c
0x0085eaac in vect_analyze_data_refs_alignment (loop_vinfo=<value temporarily
unavailable, due to optimizations>, bb_vinfo=0x0) at tree-vectorizer.h:333
333 && (loop->inner == (gimple_bb (stmt))->loop_father));
(gdb) bt
#0 0x0085eaac in vect_analyze_data_refs_alignment (loop_vinfo=<value
temporarily unavailable, due to optimizations>, bb_vinfo=0x0) at
tree-vectorizer.h:333
#1 0x0085ea68 in vect_analyze_data_refs_alignment (loop_vinfo=<value
temporarily unavailable, due to optimizations>, bb_vinfo=0x0) at
../../work/gcc/tree-vect-data-refs.c:806
The 'Bus error' is triggered by any of the WRITE statements.
