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| author | Jakub Jelinek <jakub@redhat.com> | 2019-03-14 09:56:47 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2019-03-14 09:56:47 +0100 |
| commit | f54e63dfa34c4c9922a4cb35d2f8c28c92135b8c (patch) | |
| tree | dcc71073887e0245bfb6407a7399670aa794b8dc /gcc/tree-ssa-strlen.c | |
| parent | fb055f4b745b1b56d84ad920508ebed2d22d3616 (diff) | |
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re PR tree-optimization/89703 (ICE in compare_values_warnv, at tree-vrp.c:997)
PR tree-optimization/89703
* tree-ssa-strlen.c (valid_builtin_call): Punt if stmt call types
aren't compatible also with builtin_decl_explicit. Check pure
or non-pure status of BUILT_IN_STR{{,N}CMP,N{LEN,{CAT,CPY}{,_CHK}}}
and BUILT_IN_STPNCPY{,_CHK}.
* gcc.c-torture/compile/pr89703-1.c: New test.
* gcc.c-torture/compile/pr89703-2.c: New test.
From-SVN: r269674
Diffstat (limited to 'gcc/tree-ssa-strlen.c')
| -rw-r--r-- | gcc/tree-ssa-strlen.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/tree-ssa-strlen.c b/gcc/tree-ssa-strlen.c index 721832e..1eaed66 100644 --- a/gcc/tree-ssa-strlen.c +++ b/gcc/tree-ssa-strlen.c @@ -971,12 +971,21 @@ valid_builtin_call (gimple *stmt) return false; tree callee = gimple_call_fndecl (stmt); + tree decl = builtin_decl_explicit (DECL_FUNCTION_CODE (callee)); + if (decl + && decl != callee + && !gimple_builtin_call_types_compatible_p (stmt, decl)) + return false; + switch (DECL_FUNCTION_CODE (callee)) { case BUILT_IN_MEMCMP: case BUILT_IN_MEMCMP_EQ: + case BUILT_IN_STRCMP: + case BUILT_IN_STRNCMP: case BUILT_IN_STRCHR: case BUILT_IN_STRLEN: + case BUILT_IN_STRNLEN: /* The above functions should be pure. Punt if they aren't. */ if (gimple_vdef (stmt) || gimple_vuse (stmt) == NULL_TREE) return false; @@ -991,10 +1000,16 @@ valid_builtin_call (gimple *stmt) case BUILT_IN_MEMSET: case BUILT_IN_STPCPY: case BUILT_IN_STPCPY_CHK: + case BUILT_IN_STPNCPY: + case BUILT_IN_STPNCPY_CHK: case BUILT_IN_STRCAT: case BUILT_IN_STRCAT_CHK: case BUILT_IN_STRCPY: case BUILT_IN_STRCPY_CHK: + case BUILT_IN_STRNCAT: + case BUILT_IN_STRNCAT_CHK: + case BUILT_IN_STRNCPY: + case BUILT_IN_STRNCPY_CHK: /* The above functions should be neither const nor pure. Punt if they aren't. */ if (gimple_vdef (stmt) == NULL_TREE || gimple_vuse (stmt) == NULL_TREE) |