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| author | Alexander Ivchenko <alexander.ivchenko@intel.com> | 2015-09-24 22:51:27 +0300 |
|---|---|---|
| committer | Alexander Ivchenko <alexander.ivchenko@intel.com> | 2015-09-25 15:56:18 +0300 |
| commit | 020413b1ab0181745b3ac86e20fa51dce1589266 (patch) | |
| tree | da0742130875591093e67df1d3ce90fdd9a30b2f | |
| parent | 81762471dff662de3066037f425d4dadc20be40f (diff) | |
| download | toolchain_gcc-020413b1ab0181745b3ac86e20fa51dce1589266.tar.gz toolchain_gcc-020413b1ab0181745b3ac86e20fa51dce1589266.tar.bz2 toolchain_gcc-020413b1ab0181745b3ac86e20fa51dce1589266.zip | |
[4.9] Disable inlining of memcpy for x86 with 'rep movs'.
On big length 'rep movs' are less efficient than libcall of
highly-optimized Bionic memcpy.
Change-Id: I9435b9e438e0e40c28c505c43ec7f9797384afd6
Signed-off-by: Andrew Senkevich <andrew.senkevich@intel.com>
Signed-off-by: Alexander Ivchenko <alexander.ivchenko@intel.com>
| -rw-r--r-- | gcc-4.9/gcc/config/i386/i386.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc-4.9/gcc/config/i386/i386.c b/gcc-4.9/gcc/config/i386/i386.c index 865d22352..a3c88ce64 100644 --- a/gcc-4.9/gcc/config/i386/i386.c +++ b/gcc-4.9/gcc/config/i386/i386.c @@ -1673,7 +1673,7 @@ struct processor_costs atom_cost = { }; static stringop_algs slm_memcpy[2] = { - {libcall, {{11, loop, false}, {-1, rep_prefix_4_byte, false}}}, + {libcall, {{11, loop, false}, {-1, libcall, false}}}, {libcall, {{32, loop, false}, {64, rep_prefix_4_byte, false}, {8192, rep_prefix_8_byte, false}, {-1, libcall, false}}}}; static stringop_algs slm_memset[2] = { |