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| author | Jakub Jelinek <jakub@redhat.com> | 2011-11-22 17:57:33 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-11-22 17:57:33 +0100 |
| commit | 32ef15bd33b765435ed5b2634c67b09d71026576 (patch) | |
| tree | b74222af83d6549fcb439b71ed4a893990c161b9 /gcc | |
| parent | 3945f48ca7b437e7da227aca004b7e6c069ccf7f (diff) | |
| download | gcc-32ef15bd33b765435ed5b2634c67b09d71026576.zip gcc-32ef15bd33b765435ed5b2634c67b09d71026576.tar.gz gcc-32ef15bd33b765435ed5b2634c67b09d71026576.tar.bz2 | |
re PR tree-optimization/51074 (No constant folding performed for VEC_PERM_EXPR, VEC_INTERLEAVE*EXPR, VEC_EXTRACT*EXPR)
PR tree-optimization/51074
* fold-const.c (fold_binary_loc): Fix up VEC_INTERLEAVE_*_EXPR
handling for BYTES_BIG_ENDIAN.
* optabs.c (can_vec_perm_for_code_p): Likewise.
* gcc.dg/vect/pr51074.c: New test.
From-SVN: r181627
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/fold-const.c | 6 | ||||
| -rw-r--r-- | gcc/optabs.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/pr51074.c | 24 |
5 files changed, 42 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d77a380..8fdeef2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2011-11-22 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/51074 + * fold-const.c (fold_binary_loc): Fix up VEC_INTERLEAVE_*_EXPR + handling for BYTES_BIG_ENDIAN. + * optabs.c (can_vec_perm_for_code_p): Likewise. + 2011-11-22 Michael Matz <matz@suse.de> PR other/51125 diff --git a/gcc/fold-const.c b/gcc/fold-const.c index e590377..8f31a5fd 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -13483,10 +13483,12 @@ fold_binary_loc (location_t loc, sel[i] = i * 2 + 1; break; case VEC_INTERLEAVE_HIGH_EXPR: - sel[i] = (i + nelts) / 2 + ((i & 1) ? nelts : 0); + sel[i] = (i + (BYTES_BIG_ENDIAN ? 0 : nelts)) / 2 + + ((i & 1) ? nelts : 0); break; case VEC_INTERLEAVE_LOW_EXPR: - sel[i] = i / 2 + ((i & 1) ? nelts : 0); + sel[i] = (i + (BYTES_BIG_ENDIAN ? nelts : 0)) / 2 + + ((i & 1) ? nelts : 0); break; default: gcc_unreachable (); diff --git a/gcc/optabs.c b/gcc/optabs.c index 2468efd..647805b 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -6932,9 +6932,9 @@ can_vec_perm_for_code_p (enum tree_code code, enum machine_mode mode, break; case VEC_INTERLEAVE_HIGH_EXPR: - alt = nelt / 2; - /* FALLTHRU */ case VEC_INTERLEAVE_LOW_EXPR: + if ((BYTES_BIG_ENDIAN != 0) ^ (code == VEC_INTERLEAVE_HIGH_EXPR)) + alt = nelt / 2; for (i = 0; i < nelt / 2; ++i) { data[i * 2] = i + alt; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0502af9..c21ee61 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-11-22 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/51074 + * gcc.dg/vect/pr51074.c: New test. + 2011-11-22 Dodji Seketeli <dodji@redhat.com> PR c++/51143 diff --git a/gcc/testsuite/gcc.dg/vect/pr51074.c b/gcc/testsuite/gcc.dg/vect/pr51074.c new file mode 100644 index 0000000..3091399 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr51074.c @@ -0,0 +1,24 @@ +/* PR tree-optimization/51074 */ + +#include "tree-vect.h" + +struct S { int a, b; } s[8]; + +int +main () +{ + int i; + check_vect (); + for (i = 0; i < 8; i++) + { + s[i].b = 0; + s[i].a = i; + } + asm volatile ("" : : : "memory"); + for (i = 0; i < 8; i++) + if (s[i].b != 0 || s[i].a != i) + abort (); + return 0; +} + +/* { dg-final { cleanup-tree-dump "vect" } } */ |