blob: 5943a000c1d8d69d374ae084888ad2049052fac6 [file] [log] [blame]
; Simple bit of IR to mimic CUDA's libdevice. We want to be
; able to link with it and we need to make sure all __nvvm_reflect
; calls are eliminated by the time PTX has been produced.
target triple = "nvptx-unknown-cuda"
declare i32 @__nvvm_reflect(i8*)
@"$str" = private addrspace(1) constant [8 x i8] c"USE_MUL\00"
define void @unused_subfunc(float %a) {
ret void
define void @used_subfunc(float %a) {
ret void
define float @_Z17device_mul_or_addff(float %a, float %b) {
%reflect = call i32 @__nvvm_reflect(i8* addrspacecast (i8 addrspace(1)* getelementptr inbounds ([8 x i8], [8 x i8] addrspace(1)* @"$str", i32 0, i32 0) to i8*))
%cmp = icmp ne i32 %reflect, 0
br i1 %cmp, label %use_mul, label %use_add
%ret1 = fmul float %a, %b
br label %exit
%ret2 = fadd float %a, %b
br label %exit
%ret = phi float [%ret1, %use_mul], [%ret2, %use_add]
call void @used_subfunc(float %ret)
ret float %ret