Mercurial > hg > CbC > CbC_llvm
view test/CodeGen/AMDGPU/gv-offset-folding.ll @ 134:3a76565eade5 LLVM5.0.1
update 5.0.1
author | mir3636 |
---|---|
date | Sat, 17 Feb 2018 09:57:20 +0900 |
parents | 803732b1fca8 |
children |
line wrap: on
line source
; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=fiji -mattr=-flat-for-global -relocation-model=static < %s | FileCheck %s @lds = external addrspace(3) global [4 x i32] ; Function Attrs: nounwind ; Offset folding is an optimization done for global variables with relocations, ; which allows you to store the offset in the r_addend of the relocation entry. ; The offset is apllied to the variables address at link time, which eliminates ; the need to emit shader instructions to do this calculation. ; We don't use relocations for local memory, so we should never fold offsets ; for local memory globals. ; CHECK-LABEL: lds_no_offset: ; CHECK: ds_write_b32 v{{[0-9]+}}, v{{[0-9]+}} offset:4 define amdgpu_kernel void @lds_no_offset() { entry: %ptr = getelementptr [4 x i32], [4 x i32] addrspace(3)* @lds, i32 0, i32 1 store i32 0, i32 addrspace(3)* %ptr ret void }