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| author | Ira Rosen <irar@il.ibm.com> | 2008-04-24 14:21:45 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2008-04-24 14:21:45 +0000 |
| commit | 2aa43509aefeccdde7bc02235c8337504da07b49 (patch) | |
| tree | 20f5645c1cf1e8266945a05d8e0fa57a1f2e0129 /gcc/testsuite | |
| parent | 22a812674cef168628bcf4760ef8faba4bb4cdb0 (diff) | |
| download | gcc-2aa43509aefeccdde7bc02235c8337504da07b49.zip gcc-2aa43509aefeccdde7bc02235c8337504da07b49.tar.gz gcc-2aa43509aefeccdde7bc02235c8337504da07b49.tar.bz2 | |
re PR tree-optimization/36034 (wrong code vectorizing unrolled inner loop (SLP))
2008-04-24 Ira Rosen <irar@il.ibm.com>
Richard Guenther <rguenther@suse.de>
PR tree-optimization/36034
* tree-vect-analyze.c (vect_analyze_group_access): SLP is
incapable of dealing with loads with gaps.
* gcc.c-torture/execute/pr36034-1.c: New testcase.
* gcc.c-torture/execute/pr36034-2.c: Likewise.
Co-Authored-By: Richard Guenther <rguenther@suse.de>
From-SVN: r134628
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr36034-1.c | 32 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr36034-2.c | 32 |
3 files changed, 71 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 38e76fe..fa3768e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,10 @@ +2008-04-24 Ira Rosen <irar@il.ibm.com> + Richard Guenther <rguenther@suse.de> + + PR tree-optimization/36034 + * gcc.c-torture/execute/pr36034-1.c: New testcase. + * gcc.c-torture/execute/pr36034-2.c: Likewise. + 2008-04-24 Olivier Hainque <hainque@adacore.com> * gnat.dg/concat_length.adb: New test. diff --git a/gcc/testsuite/gcc.c-torture/execute/pr36034-1.c b/gcc/testsuite/gcc.c-torture/execute/pr36034-1.c new file mode 100644 index 0000000..eddec57 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr36034-1.c @@ -0,0 +1,32 @@ +double x[5][10] = { { 10, 11, 12, 13, 14, 15, -1, -1, -1, -1 }, + { 21, 22, 23, 24, 25, 26, -1, -1, -1, -1 }, + { 32, 33, 34, 35, 36, 37, -1, -1, -1, -1 }, + { 43, 44, 45, 46, 47, 48, -1, -1, -1, -1 }, + { 54, 55, 56, 57, 58, 59, -1, -1, -1, -1 } }; +double tmp[5][6]; + +void __attribute__((noinline)) +test (void) +{ + int i, j; + for (i = 0; i < 5; ++i) + { + tmp[i][0] = x[i][0]; + tmp[i][1] = x[i][1]; + tmp[i][2] = x[i][2]; + tmp[i][3] = x[i][3]; + tmp[i][4] = x[i][4]; + tmp[i][5] = x[i][5]; + } +} +extern void abort (void); +int main() +{ + int i, j; + test(); + for (i = 0; i < 5; ++i) + for (j = 0; j < 6; ++j) + if (tmp[i][j] == -1) + abort (); + return 0; +} diff --git a/gcc/testsuite/gcc.c-torture/execute/pr36034-2.c b/gcc/testsuite/gcc.c-torture/execute/pr36034-2.c new file mode 100644 index 0000000..10abb79 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr36034-2.c @@ -0,0 +1,32 @@ +double x[50] = { 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, + 21, 22, 23, 24, 25, 26, -1, -1, -1, -1, + 32, 33, 34, 35, 36, 37, -1, -1, -1, -1, + 43, 44, 45, 46, 47, 48, -1, -1, -1, -1, + 54, 55, 56, 57, 58, 59, -1, -1, -1, -1 }; +double tmp[30]; + +void __attribute__((noinline)) +test (void) +{ + int i, j; + for (i = 0; i < 5; ++i) + { + tmp[i*6] = x[i*10]; + tmp[i*6+1] = x[i*10+1]; + tmp[i*6+2] = x[i*10+2]; + tmp[i*6+3] = x[i*10+3]; + tmp[i*6+4] = x[i*10+4]; + tmp[i*6+5] = x[i*10+5]; + } +} +extern void abort (void); +int main() +{ + int i, j; + test(); + for (i = 0; i < 5; ++i) + for (j = 0; j < 6; ++j) + if (tmp[i*6+j] == -1) + abort (); + return 0; +} |