From 25c8a7f586958acbc36700aa910aca941038002a Mon Sep 17 00:00:00 2001 From: Jubilee Young Date: Mon, 14 Oct 2024 01:11:09 -0700 Subject: [PATCH] [llvm] Doc sret only works with void returns --- llvm/docs/LangRef.rst | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst index 6fa35486669d69e..d835ab0d2a93f1b 100644 --- a/llvm/docs/LangRef.rst +++ b/llvm/docs/LangRef.rst @@ -1309,12 +1309,14 @@ Currently, only the following parameter attributes are defined: structure that is the return value of the function in the source program. This pointer must be guaranteed by the caller to be valid: loads and stores to the structure may be assumed by the callee not - to trap and to be properly aligned. This is not a valid attribute - for return values. + to trap and to be properly aligned. The sret type argument specifies the in memory type, which must be the same as the pointee type of the argument. + A function that accepts an ``sret`` argument must return ``void``. + A return value may not be ``sret``. + .. _attr_elementtype: ``elementtype()``