diff options
| author | Sebastian Pop <spop@gcc.gnu.org> | 2010-12-02 16:53:16 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2010-12-02 16:53:16 +0000 |
| commit | 5e37ea0ef1bb8d9a27e6502a82b7b14f30d6d6b6 (patch) | |
| tree | 88b1433f2415d2ff73482de80bdbdb30c4c04d7f /gcc/testsuite/gfortran.dg/ldist-pr45199.f | |
| parent | b2087e8dad076c2482622329023cde67c631edbb (diff) | |
| download | gcc-5e37ea0ef1bb8d9a27e6502a82b7b14f30d6d6b6.tar.gz | |
Fix PR45199: do not aggregate memory accesses to the same array for -ftree-loop-distribute-patterns
2010-11-30 Sebastian Pop <sebastian.pop@amd.com>
PR tree-optimization/45199
* tree-data-ref.c (mem_write_stride_of_same_size_as_unit_type_p): New.
(stores_zero_from_loop): Call
mem_write_stride_of_same_size_as_unit_type_p.
* tree-data-ref.h (stride_of_unit_type_p): New.
* tree-loop-distribution.c (generate_memset_zero): Simplified.
Call stride_of_unit_type_p.
(build_rdg_partition_for_component): Do not call
rdg_flag_similar_memory_accesses when
flag_tree_loop_distribute_patterns is set.
* gcc.dg/tree-ssa/ldist-15.c: New.
* gcc.dg/tree-ssa/ldist-16.c: New.
* gfortran.dg/ldist-pr45199.f: New.
From-SVN: r167380
Diffstat (limited to 'gcc/testsuite/gfortran.dg/ldist-pr45199.f')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/ldist-pr45199.f | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/ldist-pr45199.f b/gcc/testsuite/gfortran.dg/ldist-pr45199.f new file mode 100644 index 00000000000..6f65501a4f6 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/ldist-pr45199.f @@ -0,0 +1,27 @@ +! { dg-do compile } +! { dg-options "-O3 -fdump-tree-ldist-details" } + + parameter(numlev=3,numoblev=1000) + integer i_otyp(numoblev,numlev), i_styp(numoblev,numlev) + logical l_numob(numoblev,numlev) + do ixe=1,numoblev + do iye=1,numlev + i_otyp(ixe,iye)=0 + i_styp(ixe,iye)=0 + l_numob(ixe,iye)=.false. + enddo + enddo + do i=1,m + do j=1,n + if (l_numob(i,j)) then + write(20,'(7I4,F12.2,4F16.10)') i_otyp(i,j),i_styp(i,j) + endif + enddo + enddo + end + +! GCC should apply memset zero loop distribution and it should not ICE. + +! { dg-final { scan-tree-dump "distributed: split to 9 loops" "ldist" } } +! { dg-final { scan-tree-dump-times "__builtin_memset" 18 "ldist" } } +! { dg-final { cleanup-tree-dump "ldist" } } |