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| author | David Malcolm <dmalcolm@redhat.com> | 2020-01-22 13:08:26 -0500 |
|---|---|---|
| committer | David Malcolm <dmalcolm@redhat.com> | 2020-01-31 17:24:42 -0500 |
| commit | 09bea5845a50189b093e7fa8d5b840da702197d4 (patch) | |
| tree | 5e817797f3851e12dda366f127f2884d57473964 /gcc | |
| parent | 2a07345c4f8dabc286fc470e76c53473e5bc3eb7 (diff) | |
| download | gcc-09bea5845a50189b093e7fa8d5b840da702197d4.zip gcc-09bea5845a50189b093e7fa8d5b840da702197d4.tar.gz gcc-09bea5845a50189b093e7fa8d5b840da702197d4.tar.bz2 | |
analyzer: fix ICE handling void-type (PR 93373)
gcc/analyzer/ChangeLog:
PR analyzer/93373
* region-model.cc (ASSERT_COMPAT_TYPES): Convert to...
(assert_compat_types): ...this, and bail when either type is NULL,
or when VOID_TYPE_P (dst_type).
(region_model::get_lvalue): Update for above conversion.
(region_model::get_rvalue): Likewise.
gcc/testsuite/ChangeLog:
PR analyzer/93373
* gcc.dg/analyzer/torture/pr93373.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/analyzer/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/analyzer/region-model.cc | 12 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/analyzer/torture/pr93373.c | 3 |
4 files changed, 25 insertions, 4 deletions
diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog index fa791f7..416fc92 100644 --- a/gcc/analyzer/ChangeLog +++ b/gcc/analyzer/ChangeLog @@ -1,5 +1,14 @@ 2020-01-31 David Malcolm <dmalcolm@redhat.com> + PR analyzer/93373 + * region-model.cc (ASSERT_COMPAT_TYPES): Convert to... + (assert_compat_types): ...this, and bail when either type is NULL, + or when VOID_TYPE_P (dst_type). + (region_model::get_lvalue): Update for above conversion. + (region_model::get_rvalue): Likewise. + +2020-01-31 David Malcolm <dmalcolm@redhat.com> + PR analyzer/93379 * region-model.cc (region_model::update_for_return_superedge): Move check for null result so that it also guards setting the diff --git a/gcc/analyzer/region-model.cc b/gcc/analyzer/region-model.cc index d43aef3..eb6d8f3 100644 --- a/gcc/analyzer/region-model.cc +++ b/gcc/analyzer/region-model.cc @@ -4701,8 +4701,12 @@ region_model::get_lvalue_1 (path_var pv, region_model_context *ctxt) /* Assert that SRC_TYPE can be converted to DST_TYPE as a no-op. */ -#define ASSERT_COMPAT_TYPES(SRC_TYPE, DST_TYPE) \ - gcc_checking_assert (useless_type_conversion_p ((SRC_TYPE), (DST_TYPE))) +static void +assert_compat_types (tree src_type, tree dst_type) +{ + if (src_type && dst_type && !VOID_TYPE_P (dst_type)) + gcc_checking_assert (useless_type_conversion_p (src_type, dst_type)); +} /* Get the id of the region for PV within this region_model, emitting any diagnostics to CTXT. */ @@ -4714,7 +4718,7 @@ region_model::get_lvalue (path_var pv, region_model_context *ctxt) return region_id::null (); region_id result_rid = get_lvalue_1 (pv, ctxt); - ASSERT_COMPAT_TYPES (get_region (result_rid)->get_type (), + assert_compat_types (get_region (result_rid)->get_type (), TREE_TYPE (pv.m_tree)); return result_rid; } @@ -4795,7 +4799,7 @@ region_model::get_rvalue (path_var pv, region_model_context *ctxt) return svalue_id::null (); svalue_id result_sid = get_rvalue_1 (pv, ctxt); - ASSERT_COMPAT_TYPES (get_svalue (result_sid)->get_type (), + assert_compat_types (get_svalue (result_sid)->get_type (), TREE_TYPE (pv.m_tree)); return result_sid; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 556e5fb..d13768a 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2020-01-31 David Malcolm <dmalcolm@redhat.com> + + PR analyzer/93373 + * gcc.dg/analyzer/torture/pr93373.c: New test. + 2020-01-31 Vladimir Makarov <vmakarov@redhat.com> PR rtl-optimization/91333 diff --git a/gcc/testsuite/gcc.dg/analyzer/torture/pr93373.c b/gcc/testsuite/gcc.dg/analyzer/torture/pr93373.c new file mode 100644 index 0000000..c205ee1 --- /dev/null +++ b/gcc/testsuite/gcc.dg/analyzer/torture/pr93373.c @@ -0,0 +1,3 @@ +/* { dg-do compile } + { dg-require-effective-target alloca } */ +#include "../../Warray-bounds-41.c" |