view llvm/test/CodeGen/AMDGPU/r600.alu-limits.ll @ 223:5f17cb93ff66 llvm-original

LLVM13 (2021/7/18)
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 18 Jul 2021 22:43:00 +0900
parents 1d019706d866
children 1f2b6ac9f198
line wrap: on
line source

; RUN: opt -loop-unroll -unroll-threshold=2000 -S < %s | llc -march=r600 -mcpu=cypress | FileCheck %s
; REQUIRES: asserts

; CHECK: {{^}}alu_limits:
; CHECK: CF_END

%struct.foo = type {i32, i32, i32}

define amdgpu_kernel void @alu_limits(i32 addrspace(1)* %out, %struct.foo addrspace(5)* %in, i32 %offset) {
entry:
  %ptr = getelementptr inbounds %struct.foo, %struct.foo addrspace(5)* %in, i32 1, i32 2
  %x = load i32, i32  addrspace(5)*%ptr, align 4
  br label %loop
loop:
  %i = phi i32 [ 100, %entry ], [ %nexti, %loop ]
  %val = phi i32 [ 1, %entry ], [ %nextval, %loop ]

  %nexti = sub i32 %i, 1

  %y = xor i32 %x, %i
  %nextval = mul i32 %val, %y

  %cond = icmp ne i32 %nexti, 0
  br i1 %cond, label %loop, label %end
end:
  %out_val = add i32 %nextval, 4
  store i32 %out_val, i32 addrspace(1)* %out, align 4
  ret void
}