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| author | Cherry Zhang <cherryyz@google.com> | 2019-05-08 17:40:45 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2019-05-08 17:40:45 +0000 |
| commit | fbe4e644c0c8f1303ec91a25b8da6e626976500c (patch) | |
| tree | 87a1cfc98677c590f437af9209a3c78b34b5e9ef /gcc/go/go-gcc.cc | |
| parent | 5345ac5a110a5fcafaa9bdf3116b8252de2d96c6 (diff) | |
| download | gcc-fbe4e644c0c8f1303ec91a25b8da6e626976500c.zip gcc-fbe4e644c0c8f1303ec91a25b8da6e626976500c.tar.gz gcc-fbe4e644c0c8f1303ec91a25b8da6e626976500c.tar.bz2 | |
runtime: use builtin memmove directly
We can use the intrinsic memmove directly, without going through
C.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/170004
* go-gcc.cc (Gcc_backend::Gcc_backend): Define memmove builtin.
From-SVN: r271016
Diffstat (limited to 'gcc/go/go-gcc.cc')
| -rw-r--r-- | gcc/go/go-gcc.cc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/go/go-gcc.cc b/gcc/go/go-gcc.cc index 1a52d9b..e0e4333 100644 --- a/gcc/go/go-gcc.cc +++ b/gcc/go/go-gcc.cc @@ -604,6 +604,15 @@ Gcc_backend::Gcc_backend() NULL_TREE), false, false); + // We use __builtin_memmove for copying data. + this->define_builtin(BUILT_IN_MEMMOVE, "__builtin_memmove", "memmove", + build_function_type_list(void_type_node, + ptr_type_node, + const_ptr_type_node, + size_type_node, + NULL_TREE), + false, false); + // Used by runtime/internal/sys. this->define_builtin(BUILT_IN_CTZ, "__builtin_ctz", "ctz", build_function_type_list(integer_type_node, |