[ARM,CDE] Generalize MVE intrinsics infrastructure to support CDE
Summary:
This patch generalizes the existing code to support CDE intrinsics
which will share some properties with existing MVE intrinsics
(some of the intrinsics will be polymorphic and accept/return values
of MVE vector types).
Specifically the patch:
* Adds new tablegen backends -gen-arm-cde-builtin-def,
-gen-arm-cde-builtin-codegen, -gen-arm-cde-builtin-sema,
-gen-arm-cde-builtin-aliases, -gen-arm-cde-builtin-header based on
existing MVE backends.
* Renames the '__clang_arm_mve_alias' attribute into
'__clang_arm_builtin_alias' (it will be used with CDE intrinsics as
well as MVE intrinsics)
* Implements semantic checks for the coprocessor argument of the CDE
intrinsics as well as the existing coprocessor intrinsics.
* Adds one CDE intrinsic __arm_cx1 to test the above changes
Reviewers: simon_tatham, MarkMurrayARM, ostannard, dmgreen
Reviewed By: simon_tatham
Subscribers: sdesmalen, mgorny, kristof.beyls, danielkiss, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D75850
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 5a1fb5d..090efaa 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -6538,6 +6538,9 @@
// Deal with MVE builtins
if (Value *Result = EmitARMMVEBuiltinExpr(BuiltinID, E, ReturnValue, Arch))
return Result;
+ // Handle CDE builtins
+ if (Value *Result = EmitARMCDEBuiltinExpr(BuiltinID, E, ReturnValue, Arch))
+ return Result;
// Find out if any arguments are required to be integer constant
// expressions.
@@ -7212,6 +7215,17 @@
llvm_unreachable("unknown custom codegen type.");
}
+Value *CodeGenFunction::EmitARMCDEBuiltinExpr(unsigned BuiltinID,
+ const CallExpr *E,
+ ReturnValueSlot ReturnValue,
+ llvm::Triple::ArchType Arch) {
+ switch (BuiltinID) {
+ default:
+ return nullptr;
+#include "clang/Basic/arm_cde_builtin_cg.inc"
+ }
+}
+
static Value *EmitAArch64TblBuiltinExpr(CodeGenFunction &CGF, unsigned BuiltinID,
const CallExpr *E,
SmallVectorImpl<Value *> &Ops,