; RUN: opt -S -mtriple=amdgcn-amd- -amdgpu-annotate-kernel-features %s | FileCheck %s ; Test to ensure recursive functions exhibit proper behaviour ; Test to generate fibonacci numbers ; CHECK: define i32 @fib(i32 %n) #[[FIB:[0-9]+]] { define i32 @fib(i32 %n) #0 { %cmp1 = icmp eq i32 %n, 0 br i1 %cmp1, label %exit, label %cont1 cont1: %cmp2 = icmp eq i32 %n, 1 br i1 %cmp2, label %exit, label %cont2 cont2: %nm1 = sub i32 %n, 1 %fibm1 = call i32 @fib(i32 %nm1) %nm2 = sub i32 %n, 2 %fibm2 = call i32 @fib(i32 %nm2) %retval = add i32 %fibm1, %fibm2 ret i32 %retval exit: ret i32 1 } ; CHECK: define amdgpu_kernel void @kernel(i32 addrspace(1)* %m) #[[KERNEL:[0-9]+]] { define amdgpu_kernel void @kernel(i32 addrspace(1)* %m) #1 { %r = call i32 @fib(i32 5) store i32 %r, i32 addrspace(1)* %m ret void } attributes #1 = { "uniform-work-group-size"="true" } ; CHECK: attributes #[[FIB]] = { "uniform-work-group-size"="true" } ; CHECK: attributes #[[KERNEL]] = { "amdgpu-calls" "uniform-work-group-size"="true" }