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| author | Richard Sandiford <richard.sandiford@arm.com> | 2019-12-05 14:20:38 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2019-12-05 14:20:38 +0000 |
| commit | 56b4b16eb18e8af5615a9c7b56c6b5e7f9c3adf0 (patch) | |
| tree | 5e41d9c2bd48e9c3b6f229b418d7f4fc32780b4d /gcc/final.c | |
| parent | 5a784d350c57d670775471bec847370ed7677666 (diff) | |
| download | gcc-56b4b16eb18e8af5615a9c7b56c6b5e7f9c3adf0.zip gcc-56b4b16eb18e8af5615a9c7b56c6b5e7f9c3adf0.tar.gz gcc-56b4b16eb18e8af5615a9c7b56c6b5e7f9c3adf0.tar.bz2 | |
Check for bitwise identity when encoding VECTOR_CSTs (PR 92768)
This PR shows that we weren't checking for bitwise-identical values
when trying to encode a VECTOR_CST, so -0.0 was treated the same as
0.0 for -fno-signed-zeros. The patch adds a new OEP flag to select
that behaviour.
2019-12-05 Richard Sandiford <richard.sandiford@arm.com>
gcc/
PR middle-end/92768
* tree-core.h (OEP_BITWISE): New flag.
* fold-const.c (operand_compare::operand_equal_p): Handle it.
* tree-vector-builder.h (tree_vector_builder::equal_p): Pass it.
gcc/testsuite/
PR middle-end/92768
* gcc.dg/pr92768.c: New test.
From-SVN: r279002
Diffstat (limited to 'gcc/final.c')
0 files changed, 0 insertions, 0 deletions