diff options
| author | Sebastian Pop <sebastian.pop@amd.com> | 2010-01-08 08:04:35 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2010-01-08 08:04:35 +0000 |
| commit | 4e98c66c4fa2d8f4cb09d589ad909895eb247880 (patch) | |
| tree | 52b15ac06bc8fc1943d26f9cc256cdaff92ebbd3 /gcc | |
| parent | fd4a56fff2611fa6d840e801d8181bfac061f8e0 (diff) | |
| download | gcc-4e98c66c4fa2d8f4cb09d589ad909895eb247880.zip gcc-4e98c66c4fa2d8f4cb09d589ad909895eb247880.tar.gz gcc-4e98c66c4fa2d8f4cb09d589ad909895eb247880.tar.bz2 | |
re PR tree-optimization/42221 (ICE from '-Os -fgraphite-identity')
Fix PR42221.
2009-12-23 Sebastian Pop <sebastian.pop@amd.com>
PR middle-end/42221
* sese.c (expand_scalar_variables_expr): Follow the SSA links into
the array indexing of ADDR_EXPRs.
* testsuite/gcc.dg/graphite/pr42221.c: New.
From-SVN: r155731
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog.graphite | 8 | ||||
| -rw-r--r-- | gcc/sese.c | 15 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/graphite/pr42221.c | 24 |
3 files changed, 46 insertions, 1 deletions
diff --git a/gcc/ChangeLog.graphite b/gcc/ChangeLog.graphite index 165f7eb..b093edd 100644 --- a/gcc/ChangeLog.graphite +++ b/gcc/ChangeLog.graphite @@ -1,5 +1,13 @@ 2010-01-07 Sebastian Pop <sebastian.pop@amd.com> + PR middle-end/42221 + * sese.c (expand_scalar_variables_expr): Follow the SSA links into + the array indexing of ADDR_EXPRs. + + * testsuite/gcc.dg/graphite/pr42221.c: New. + +2010-01-07 Sebastian Pop <sebastian.pop@amd.com> + PR middle-end/42521 * graphite.c (graphite_finalize): Call scev_reset. (graphite_transform_loops): Do not call scev_reset between the code @@ -874,7 +874,20 @@ expand_scalar_variables_expr (tree type, tree op0, enum tree_code code, return expand_scalar_variables_ssa_name (op0, bb, region, map, gsi); if (code == ADDR_EXPR) - return op0; + { + tree op00 = TREE_OPERAND (op0, 0); + + if (handled_component_p (op00) + && TREE_CODE (op00) == ARRAY_REF) + { + tree e = expand_scalar_variables_expr (TREE_TYPE (op00), op00, + TREE_CODE (op00), + NULL, bb, region, map, gsi); + return fold_build1 (code, TREE_TYPE (op0), e); + } + + return op0; + } gcc_unreachable (); return NULL; diff --git a/gcc/testsuite/gcc.dg/graphite/pr42221.c b/gcc/testsuite/gcc.dg/graphite/pr42221.c new file mode 100644 index 0000000..da8daa1 --- /dev/null +++ b/gcc/testsuite/gcc.dg/graphite/pr42221.c @@ -0,0 +1,24 @@ +/* { dg-options "-Os -fgraphite-identity" } */ + +static void b2w(unsigned int *out, const unsigned char *in, unsigned int len) +{ + const unsigned char *bpend = in + len; + for (; in != bpend; in += 4, ++out) + { + *out = (unsigned int) (in[0] ) | + (unsigned int) (in[3] << 24); + } +} +static void md4step(unsigned int state[4], const unsigned char *data) +{ + unsigned int A, X[16]; + b2w(X, data, 64); + state[0] += A; +} +void md4sum(void) +{ + unsigned char final[128]; + unsigned int state[4]; + md4step(state, final); + md4step(state, final + 64); +} |