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| author | Jeff Law <law@redhat.com> | 2017-02-23 14:43:03 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2017-02-23 14:43:03 -0700 |
| commit | 06b909b07e840d648a425e0ede5947616354f11b (patch) | |
| tree | 7e2d9df1be2fecead21af6c62918e8fa5c1df015 /gcc | |
| parent | cb701078b11c9e539dc21a4ddec517af6575c265 (diff) | |
| download | gcc-06b909b07e840d648a425e0ede5947616354f11b.zip gcc-06b909b07e840d648a425e0ede5947616354f11b.tar.gz gcc-06b909b07e840d648a425e0ede5947616354f11b.tar.bz2 | |
re PR tree-optimization/79578 (Unnecessary instructions in generated code)
PR tree-optimization/79578
* tree-ssa-dse.c (clear_bytes_written_by): Use OEP_ADDRESS_OF
in call to operand_equal_p.
From-SVN: r245688
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-ssa-dse.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d003ab1..37ae06a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2017-02-23 Jeff Law <law@redhat.com> + + PR tree-optimization/79578 + * tree-ssa-dse.c (clear_bytes_written_by): Use OEP_ADDRESS_OF + in call to operand_equal_p. + 2017-01-23 Dominique d'Humieres <dominiq@lps.ens.fr> PR target/71017 diff --git a/gcc/tree-ssa-dse.c b/gcc/tree-ssa-dse.c index a82e164..53feaf3 100644 --- a/gcc/tree-ssa-dse.c +++ b/gcc/tree-ssa-dse.c @@ -176,7 +176,7 @@ clear_bytes_written_by (sbitmap live_bytes, gimple *stmt, ao_ref *ref) /* Verify we have the same base memory address, the write has a known size and overlaps with REF. */ if (valid_ao_ref_for_dse (&write) - && operand_equal_p (write.base, ref->base, 0) + && operand_equal_p (write.base, ref->base, OEP_ADDRESS_OF) && write.size == write.max_size && ((write.offset < ref->offset && write.offset + write.size > ref->offset) |