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| author | Richard Guenther <rguenther@suse.de> | 2012-10-15 11:22:49 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-10-15 11:22:49 +0000 |
| commit | f843144b28ada08524d795e248cab60d56a0a25d (patch) | |
| tree | 9f19ba7e7620c67cc6660c8dc0dfc0e3ce3d28fb /gcc | |
| parent | 7bd8fc3ba11b48adf06abcc87d74d56104cba1ed (diff) | |
| download | gcc-f843144b28ada08524d795e248cab60d56a0a25d.zip gcc-f843144b28ada08524d795e248cab60d56a0a25d.tar.gz gcc-f843144b28ada08524d795e248cab60d56a0a25d.tar.bz2 | |
re PR tree-optimization/54920 (segfault in tree-ssa-pre.c during Firefox build)
2012-10-15 Richard Guenther <rguenther@suse.de>
PR tree-optimization/54920
* tree-ssa-pre.c (create_expression_by_pieces): Properly
allocate temporary storage for all NARY elements.
* gcc.dg/torture/pr54920.c: New testcase.
From-SVN: r192454
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr54920.c | 13 | ||||
| -rw-r--r-- | gcc/tree-ssa-pre.c | 2 |
4 files changed, 25 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 790c69e..7447694 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-10-15 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/54920 + * tree-ssa-pre.c (create_expression_by_pieces): Properly + allocate temporary storage for all NARY elements. + 2012-10-15 Joern Rennecke <joern.rennecke@embecosm.com> * web.c (union_match_dups): Properly handle OP_INOUT match_dups. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 23f8c2e..07a052d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-10-15 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/54920 + * gcc.dg/torture/pr54920.c: New testcase. + 2012-10-15 Eric Botcazou <ebotcazou@adacore.com> * gnat.dg/unchecked_convert9.ad[sb]: New test. diff --git a/gcc/testsuite/gcc.dg/torture/pr54920.c b/gcc/testsuite/gcc.dg/torture/pr54920.c new file mode 100644 index 0000000..d1622f7 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr54920.c @@ -0,0 +1,13 @@ +/* { dg-do compile } */ + +typedef short __v8hi __attribute__ ((__vector_size__ (16))); +typedef long long __m128i __attribute__ ((__vector_size__ (16))); +int a; +__m128i b; + +void +fn1 () +{ + while (1) + b = (__m128i) (__v8hi) { a, 0, 0, 0, 0, 0 }; +} diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c index fe9186c..548c110 100644 --- a/gcc/tree-ssa-pre.c +++ b/gcc/tree-ssa-pre.c @@ -2853,7 +2853,7 @@ create_expression_by_pieces (basic_block block, pre_expr expr, case NARY: { vn_nary_op_t nary = PRE_EXPR_NARY (expr); - tree genop[4]; + tree *genop = XALLOCAVEC (tree, nary->length); unsigned i; for (i = 0; i < nary->length; ++i) { |