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| author | serge-sans-paille <sguelton@redhat.com> | 2020-01-16 21:53:32 +0100 |
|---|---|---|
| committer | serge-sans-paille <sguelton@redhat.com> | 2020-01-17 10:01:55 +0100 |
| commit | cd4c65f91d5a77de28239979b772a8022dc6627a (patch) | |
| tree | 2d3dfcd70f26f427d0128444cf21dc4d9fc27b21 /clang/lib/CodeGen | |
| parent | 2d2d057ae23036baecb5a2a4a7f929626f46921a (diff) | |
| download | bcm5719-llvm-cd4c65f91d5a77de28239979b772a8022dc6627a.tar.gz bcm5719-llvm-cd4c65f91d5a77de28239979b772a8022dc6627a.zip | |
Add __warn_memset_zero_len builtin as a workaround for glibc issue
Glibc issue: https://sourceware.org/bugzilla/show_bug.cgi?id=25399
The fix consist in considering the missing function as a builtin lowered to a nop.
Differential Revision: https://reviews.llvm.org/D72869
(cherry picked from commit d293417931d3a9d46799b42795988ca3b5cfd766)
Diffstat (limited to 'clang/lib/CodeGen')
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index 09fd3087b49..2d20f92fbb3 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -3222,6 +3222,8 @@ RValue CodeGenFunction::EmitBuiltinExpr(const GlobalDecl GD, unsigned BuiltinID, Builder.CreateZExt(EmitSignBit(*this, EmitScalarExpr(E->getArg(0))), ConvertType(E->getType()))); } + case Builtin::BI__warn_memset_zero_len: + return RValue::getIgnored(); case Builtin::BI__annotation: { // Re-encode each wide string to UTF8 and make an MDString. SmallVector<Metadata *, 1> Strings; |
