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| author | Sebastian Pop <sebastian.pop@amd.com> | 2010-03-13 17:34:59 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2010-03-13 17:34:59 +0000 |
| commit | 1f3803148ffa5702cb86f43a6bf2ecaeacb1b1bd (patch) | |
| tree | 59ee96a3f882ff306e3bca6a9946de2c16d2688d /gcc | |
| parent | b6bb0094b2486476e45570135f4b6fada05cdba6 (diff) | |
| download | gcc-1f3803148ffa5702cb86f43a6bf2ecaeacb1b1bd.zip gcc-1f3803148ffa5702cb86f43a6bf2ecaeacb1b1bd.tar.gz gcc-1f3803148ffa5702cb86f43a6bf2ecaeacb1b1bd.tar.bz2 | |
Fix PR43306: correct evolution_function_right_is_integer_cst.
2010-03-09 Sebastian Pop <sebastian.pop@amd.com>
PR middle-end/43306
* tree-chrec.c (evolution_function_right_is_integer_cst): CHREC_RIGHT
should be an INTEGER_CST. Also handle CASE_CONVERT.
* gcc.dg/graphite/pr43306.c: New.
From-SVN: r157434
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog.graphite | 7 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/graphite/pr43306.c | 9 | ||||
| -rw-r--r-- | gcc/tree-chrec.c | 12 |
3 files changed, 21 insertions, 7 deletions
diff --git a/gcc/ChangeLog.graphite b/gcc/ChangeLog.graphite index 3a94ee1..837e4bc 100644 --- a/gcc/ChangeLog.graphite +++ b/gcc/ChangeLog.graphite @@ -1,5 +1,12 @@ 2010-03-09 Sebastian Pop <sebastian.pop@amd.com> + PR middle-end/43306 + * tree-chrec.c (evolution_function_right_is_integer_cst): CHREC_RIGHT + should be an INTEGER_CST. Also handle CASE_CONVERT. + * gcc.dg/graphite/pr43306.c: New. + +2010-03-09 Sebastian Pop <sebastian.pop@amd.com> + * graphite.c (graphite_initialize): To bound the number of bbs per function, use PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION. * params.def (PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION): Declared. diff --git a/gcc/testsuite/gcc.dg/graphite/pr43306.c b/gcc/testsuite/gcc.dg/graphite/pr43306.c new file mode 100644 index 0000000..43195e4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/graphite/pr43306.c @@ -0,0 +1,9 @@ +/* { dg-options "-O1 -fstrict-overflow -fgraphite-identity" } */ + +void foo(int x[]) +{ + int i, j; + for (i = 0; i < 2; i++) + for (j = 0; j < 2; j++) + x[i] = x[i*j]; +} diff --git a/gcc/tree-chrec.c b/gcc/tree-chrec.c index c945f93..929bbc0 100644 --- a/gcc/tree-chrec.c +++ b/gcc/tree-chrec.c @@ -1529,14 +1529,12 @@ evolution_function_right_is_integer_cst (const_tree chrec) return true; case POLYNOMIAL_CHREC: - if (!evolution_function_right_is_integer_cst (CHREC_RIGHT (chrec))) - return false; - - if (TREE_CODE (CHREC_LEFT (chrec)) == POLYNOMIAL_CHREC - && !evolution_function_right_is_integer_cst (CHREC_LEFT (chrec))) - return false; + return TREE_CODE (CHREC_RIGHT (chrec)) == INTEGER_CST + && (TREE_CODE (CHREC_LEFT (chrec)) != POLYNOMIAL_CHREC + || evolution_function_right_is_integer_cst (CHREC_LEFT (chrec))); - return true; + CASE_CONVERT: + return evolution_function_right_is_integer_cst (TREE_OPERAND (chrec, 0)); default: return false; |