diff options
Diffstat (limited to 'llvm/docs/LangRef.rst')
| -rw-r--r-- | llvm/docs/LangRef.rst | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst index bac13cc..28746bf 100644 --- a/llvm/docs/LangRef.rst +++ b/llvm/docs/LangRef.rst @@ -413,6 +413,8 @@ added in the future: - On AArch64 the callee preserves all general purpose registers, except X0-X8 and X16-X18. Not allowed with ``nest``. + - On RISC-V the callee preserve x5-x31 except x6, x7 and x28 registers. + The idea behind this convention is to support calls to runtime functions that have a hot path and a cold path. The hot path is usually a small piece of code that doesn't use many registers. The cold path might need to call out to @@ -26653,9 +26655,10 @@ object's lifetime. Arguments: """""""""" -The first argument is a constant integer representing the size of the -object, or -1 if it is variable sized. The second argument is a pointer -to an ``alloca`` instruction. +The first argument is a constant integer, which is ignored and will be removed +in the future. + +The second argument is a pointer to an ``alloca`` instruction. Semantics: """""""""" @@ -26693,9 +26696,10 @@ The '``llvm.lifetime.end``' intrinsic specifies the end of a Arguments: """""""""" -The first argument is a constant integer representing the size of the -object, or -1 if it is variable sized. The second argument is a pointer -to an ``alloca`` instruction. +The first argument is a constant integer, which is ignored and will be removed +in the future. + +The second argument is a pointer to an ``alloca`` instruction. Semantics: """""""""" |