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; RUN: llc < %s -march=nvptx64 -mcpu=sm_50 -verify-machineinstrs | FileCheck %s
; RUN: %if ptxas %{ llc < %s -march=nvptx64 -mcpu=sm_50 -verify-machineinstrs | %ptxas-verify %}
; calls with a bitcasted function symbol should be fine, but in combination with
; a byval attribute were causing a segfault during isel. This testcase was
; reduced from a SYCL kernel using aggregate types which ended up being passed
; `byval`
target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
target triple = "nvptx64-nvidia-cuda"
%"class.complex" = type { %"class.sycl::_V1::detail::half_impl::half", %"class.sycl::_V1::detail::half_impl::half" }
%"class.sycl::_V1::detail::half_impl::half" = type { half }
%complex_half = type { half, half }
; CHECK: .param .align 2 .b8 param2[4];
; CHECK: st.param.b16 [param2+0], %rs1;
; CHECK: st.param.b16 [param2+2], %rs2;
; CHECK: .param .align 2 .b8 retval0[4];
; CHECK: call.uni (retval0),
; CHECK-NEXT: _Z20__spirv_GroupCMulKHRjjN5__spv12complex_halfE,
define weak_odr void @foo() {
entry:
%call.i.i.i = tail call %"class.complex" @_Z20__spirv_GroupCMulKHRjjN5__spv12complex_halfE(i32 0, i32 0, ptr byval(%"class.complex") null)
ret void
}
;; Function pointers can escape, so we have to use a conservative
;; alignment for a function that has address taken.
;;
declare ptr @usefp(ptr %fp)
; CHECK: .func callee(
; CHECK-NEXT: .param .align 2 .b8 callee_param_0[4]
define internal void @callee(ptr byval(%"class.complex") %byval_arg) {
ret void
}
define void @boom() {
%fp = call ptr @usefp(ptr @callee)
; CHECK: .param .align 2 .b8 param0[4];
; CHECK: st.param.b16 [param0+0], %rs1;
; CHECK: st.param.b16 [param0+2], %rs2;
; CHECK: .callprototype ()_ (.param .align 2 .b8 _[4]);
call void %fp(ptr byval(%"class.complex") null)
ret void
}
declare %complex_half @_Z20__spirv_GroupCMulKHRjjN5__spv12complex_halfE(i32, i32, ptr byval(%"class.complex"))
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