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| author | Mark Rousskov <mark.simulacrum@gmail.com> | 2018-11-08 18:14:49 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-11-08 18:14:49 -0700 |
| commit | 78cab361394c6cdb9ab950ff094bcc5e0635ce86 (patch) | |
| tree | a8277b2651ce2045713d109115784658559c5297 /src/librustc_codegen_llvm/llvm | |
| parent | 6153ce127aaed3fcef119a86762879c711bdc96c (diff) | |
| parent | 463ad9098e12d1fbcfec2125d0ebfc6467866e38 (diff) | |
| download | rust-78cab361394c6cdb9ab950ff094bcc5e0635ce86.tar.gz rust-78cab361394c6cdb9ab950ff094bcc5e0635ce86.zip | |
Rollup merge of #55633 - nikic:memcpy-align, r=nagisa
Support memcpy/memmove with differing src/dst alignment If LLVM 7 is used, generate memcpy/memmove with differing src/dst alignment. I've added new FFI functions to construct these through the builder API, which is more convenient than dealing with differing intrinsic signatures depending on the LLVM version. Fixes #49740.
Diffstat (limited to 'src/librustc_codegen_llvm/llvm')
| -rw-r--r-- | src/librustc_codegen_llvm/llvm/ffi.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/librustc_codegen_llvm/llvm/ffi.rs b/src/librustc_codegen_llvm/llvm/ffi.rs index 12d4670e4be..b994b1ffc4b 100644 --- a/src/librustc_codegen_llvm/llvm/ffi.rs +++ b/src/librustc_codegen_llvm/llvm/ffi.rs @@ -998,6 +998,22 @@ extern "C" { Bundle: Option<&OperandBundleDef<'a>>, Name: *const c_char) -> &'a Value; + pub fn LLVMRustBuildMemCpy(B: &Builder<'a>, + Dst: &'a Value, + DstAlign: c_uint, + Src: &'a Value, + SrcAlign: c_uint, + Size: &'a Value, + IsVolatile: bool) + -> &'a Value; + pub fn LLVMRustBuildMemMove(B: &Builder<'a>, + Dst: &'a Value, + DstAlign: c_uint, + Src: &'a Value, + SrcAlign: c_uint, + Size: &'a Value, + IsVolatile: bool) + -> &'a Value; pub fn LLVMBuildSelect(B: &Builder<'a>, If: &'a Value, Then: &'a Value, |