From 66d4466d680bcd97b7eb561f08bd6da80a1d6c4e Mon Sep 17 00:00:00 2001 From: Tim Foley Date: Thu, 7 Jan 2021 12:18:55 -0800 Subject: Add support for [noinline] attribute (#1650) This adds the `[noinline]` attribute to the front-end, and passes it through when generating HLSL output. Notes: * This change doesn't include a test since the dxc version I have locally parses `[noinline]` but then generates DXIL that fails validation. * This change doesn't include logic to handle `[noinline]` for other targets. Notably, SPIR-V has decorations that convey the same intention, but we don't yet take advantage of the GLSL extension(s) that would let us generate those decorations. * By necesstiy, `[noinline]` is only a "strong suggestion" and not actually something the compiler can ever guarantee/enforce. --- source/slang/slang-ast-modifier.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'source/slang/slang-ast-modifier.h') diff --git a/source/slang/slang-ast-modifier.h b/source/slang/slang-ast-modifier.h index 55b62483b..3d0c3c6c1 100644 --- a/source/slang/slang-ast-modifier.h +++ b/source/slang/slang-ast-modifier.h @@ -937,4 +937,16 @@ class NVAPISlotModifier : public Modifier String spaceName; }; + /// A `[noinline]` attribute represents a request by the application that, + /// to the extent possible, a function should not be inlined into call sites. + /// + /// Note that due to various limitations of different targets, it is entirely + /// possible for such functions to be inlined or specialized to call sites. + /// +class NoInlineAttribute : public Attribute +{ + SLANG_AST_CLASS(NoInlineAttribute) +}; + + } // namespace Slang -- cgit v1.2.3