From ed0e4c70c99d3afd87fb202ab03bda40512677e7 Mon Sep 17 00:00:00 2001 From: Simon Tatham Date: Mon, 3 Aug 2020 13:30:48 +0100 Subject: [PATCH] [clang][ARM] Add name-mangling test for direct __fp16 arguments. `clang/test/CodeGenCXX/fp16-mangle.cpp` tests pointers to __fp16, but if you give the `-fallow-half-arguments-and-returns` option, then clang can also leave an __fp16 unmodified as a function argument or return type. This regression test checks the name-mangling of that. Reviewed By: miyuki Differential Revision: https://reviews.llvm.org/D85010 --- clang/test/CodeGenCXX/fp16-mangle-arg-return.cpp | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 clang/test/CodeGenCXX/fp16-mangle-arg-return.cpp diff --git a/clang/test/CodeGenCXX/fp16-mangle-arg-return.cpp b/clang/test/CodeGenCXX/fp16-mangle-arg-return.cpp new file mode 100644 index 0000000..15214e1 --- /dev/null +++ b/clang/test/CodeGenCXX/fp16-mangle-arg-return.cpp @@ -0,0 +1,16 @@ +// RUN: %clang_cc1 -emit-llvm -o - -triple arm-arm-none-eabi -fallow-half-arguments-and-returns %s | FileCheck %s +// RUN: %clang_cc1 -emit-llvm -o - -triple aarch64-arm-none-eabi -fallow-half-arguments-and-returns %s | FileCheck %s + +// Test name-mangling of __fp16 passed directly as a function argument +// (when that is permitted). + +// CHECK: define {{.*}}void @_Z13fp16_argumentDh(half %{{.*}}) +void fp16_argument(__fp16 arg) {} + +// Test name-mangling of __fp16 as a return type. The return type of +// fp16_return itself isn't mentioned in the mangled name, so to test +// this, we have to pass it a function pointer and make __fp16 the +// return type of that. + +// CHECK: define {{.*}}void @_Z11fp16_returnPFDhvE(half ()* %{{.*}}) +void fp16_return(__fp16 (*func)(void)) {} -- 2.7.4