diff options
Diffstat (limited to 'clang/lib/CodeGen/CGBuiltin.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index 8022cdcdbe6..f566374420d 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -1840,6 +1840,27 @@ RValue CodeGenFunction::EmitBuiltinExpr(const GlobalDecl GD, unsigned BuiltinID, return RValue::get(Res); } + case Builtin::BI__builtin_preserve_access_index: { + // Only enabled preserved access index region when debuginfo + // is available as debuginfo is needed to preserve user-level + // access pattern. + if (!getDebugInfo()) { + CGM.Error(E->getExprLoc(), "using builtin_preserve_access_index() without -g"); + return RValue::get(EmitScalarExpr(E->getArg(0))); + } + + // Nested builtin_preserve_access_index() not supported + if (IsInPreservedAIRegion) { + CGM.Error(E->getExprLoc(), "nested builtin_preserve_access_index() not supported"); + return RValue::get(EmitScalarExpr(E->getArg(0))); + } + + IsInPreservedAIRegion = true; + Value *Res = EmitScalarExpr(E->getArg(0)); + IsInPreservedAIRegion = false; + return RValue::get(Res); + } + case Builtin::BI__builtin_cimag: case Builtin::BI__builtin_cimagf: case Builtin::BI__builtin_cimagl: |
