================ @@ -0,0 +1,27 @@ +// REQUIRES: amdgpu-registered-target +// XFAIL: * +// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -aux-triple x86_64-pc-windows-msvc -target-cpu gfx900 -x hip -emit-llvm -fcuda-is-device -o - %s | FileCheck %s +// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -aux-triple x86_64-pc-windows-msvc -target-cpu gfx900 -x hip -S -fcuda-is-device -o - %s | FileCheck %s --check-prefix=GFX9 + +// Unlike OpenCL, HIP depends on the C++ interpration of "unsigned long", which +// is 64 bits long on Linux and 32 bits long on Windows. The return type of the +// ballot intrinsic needs to be a 64 bit integer on both platforms. This test +// cross-compiles to Windows to confirm that the return type is indeed 64 bits +// on Windows. + +// FIXME: The Clang declaration of the wave-64 builtin uses "UL" as the return +// type, which is interpreted as a 32-bit unsigned integer on Windows. This +// emits an incorrect LLVM declaration with i32 return type instead of i64. The +// clang declaration needs to be fixed to use "WU" instead. + +// CHECK-LABEL: @_Z3fooi +// CHECK: call i64 @llvm.amdgcn.ballot.i64 + +// GFX9-LABEL: _Z3fooi: +// GFX9: v_cmp_ne_u32_e64 ---------------- vpykhtin wrote:
Is it really needed to test codegen here? Nice find, BTW. https://github.com/llvm/llvm-project/pull/73920 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
