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| author | Jan Hubicka <jh@suse.cz> | 2021-03-29 20:09:35 +0200 |
|---|---|---|
| committer | Jan Hubicka <jh@suse.cz> | 2021-03-29 20:09:35 +0200 |
| commit | dd64aaafe6916ac11ccae3182b4550c8b8f5e066 (patch) | |
| tree | e497f10aca4e34cdb0b3911e39dcc5fb0de1a00e | |
| parent | 864caa158f6db6b653c6a88ff32ce5ce0b4660a8 (diff) | |
| download | gcc-dd64aaafe6916ac11ccae3182b4550c8b8f5e066.zip gcc-dd64aaafe6916ac11ccae3182b4550c8b8f5e066.tar.gz gcc-dd64aaafe6916ac11ccae3182b4550c8b8f5e066.tar.bz2 | |
Fix typo in merge_call_lhs_flags
gcc/ChangeLog:
2021-03-29 Jan Hubicka <hubicka@ucw.cz>
* ipa-modref.c (merge_call_lhs_flags): Correct handling of deref.
(analyze_ssa_name_flags): Fix typo in comment.
gcc/testsuite/ChangeLog:
2021-03-29 Jan Hubicka <hubicka@ucw.cz>
* gcc.c-torture/compile/pr99751.c: New test.
| -rw-r--r-- | gcc/ipa-modref.c | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr99751.c | 20 |
2 files changed, 23 insertions, 3 deletions
diff --git a/gcc/ipa-modref.c b/gcc/ipa-modref.c index 7aaf53b..5f33bb5 100644 --- a/gcc/ipa-modref.c +++ b/gcc/ipa-modref.c @@ -1545,9 +1545,9 @@ merge_call_lhs_flags (gcall *call, int arg, int index, bool deref, tree lhs = gimple_call_lhs (call); analyze_ssa_name_flags (lhs, lattice, depth + 1, ipa); if (deref) - lattice[index].merge (lattice[SSA_NAME_VERSION (lhs)]); - else lattice[index].merge_deref (lattice[SSA_NAME_VERSION (lhs)], false); + else + lattice[index].merge (lattice[SSA_NAME_VERSION (lhs)]); } /* In the case of memory store we can do nothing. */ else @@ -1621,7 +1621,7 @@ analyze_ssa_name_flags (tree name, vec<modref_lattice> &lattice, int depth, else if (gcall *call = dyn_cast <gcall *> (use_stmt)) { tree callee = gimple_call_fndecl (call); - /* Return slot optiomization would require bit of propagation; + /* Return slot optimization would require bit of propagation; give up for now. */ if (gimple_call_return_slot_opt_p (call) && gimple_call_lhs (call) != NULL_TREE diff --git a/gcc/testsuite/gcc.c-torture/compile/pr99751.c b/gcc/testsuite/gcc.c-torture/compile/pr99751.c new file mode 100644 index 0000000..f1d5101 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr99751.c @@ -0,0 +1,20 @@ +int *ptr1 = 0, **ptr2 = &ptr1; + +int *identity(int *p) +{ + return p; +} + +void store_to_c(int *p) +{ + *ptr2 = identity(p); +} + +int main() +{ + int f; + store_to_c(&f); + if (ptr1 != &f) + __builtin_abort(); + return 0; +} |