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authorAlexander Ivchenko <alexander.ivchenko@intel.com>2015-09-24 19:51:27 (GMT)
committerAlexander Ivchenko <alexander.ivchenko@intel.com>2015-09-25 12:56:18 (GMT)
commit020413b1ab0181745b3ac86e20fa51dce1589266 (patch)
treeda0742130875591093e67df1d3ce90fdd9a30b2f /gcc-4.9/gcc
parent81762471dff662de3066037f425d4dadc20be40f (diff)
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[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>
Diffstat (limited to 'gcc-4.9/gcc')
-rw-r--r--gcc-4.9/gcc/config/i386/i386.c2
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 865d223..a3c88ce 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] = {