maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.s.memtime.ll

24 lines
829 B
LLVM
Raw Normal View History

AMDGPU: Implement readcyclecounter This matches the behavior of the HSAIL clock instruction. s_realmemtime is used if the subtarget supports it, and falls back to s_memtime if not. Also introduces new intrinsics for each of s_memtime / s_memrealtime. llvm-svn: 262119
2016-02-27 16:53:46 +08:00
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=GCN %s
Enable FeatureFlatForGlobal on Volcanic Islands This switches to the workaround that HSA defaults to for the mesa path. This should be applied to the 4.0 branch. Patch by Vedran Miletić <vedran@miletic.net> llvm-svn: 292982
2017-01-25 06:02:15 +08:00
; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=GCN %s
AMDGPU: Implement readcyclecounter This matches the behavior of the HSAIL clock instruction. s_realmemtime is used if the subtarget supports it, and falls back to s_memtime if not. Also introduces new intrinsics for each of s_memtime / s_memrealtime. llvm-svn: 262119
2016-02-27 16:53:46 +08:00
declare i64 @llvm.amdgcn.s.memtime() #0
; GCN-LABEL: {{^}}test_s_memtime:
; GCN-DAG: s_memtime s{{\[[0-9]+:[0-9]+\]}}
; GCN-DAG: s_load_dwordx2
; GCN: lgkmcnt
; GCN: buffer_store_dwordx2
; GCN-NOT: lgkmcnt
; GCN: s_memtime s{{\[[0-9]+:[0-9]+\]}}
; GCN: buffer_store_dwordx2
AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel. Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel). llvm-svn: 298444
2017-03-22 05:39:51 +08:00
define amdgpu_kernel void @test_s_memtime(i64 addrspace(1)* %out) #0 {
AMDGPU: Implement readcyclecounter This matches the behavior of the HSAIL clock instruction. s_realmemtime is used if the subtarget supports it, and falls back to s_memtime if not. Also introduces new intrinsics for each of s_memtime / s_memrealtime. llvm-svn: 262119
2016-02-27 16:53:46 +08:00
%cycle0 = call i64 @llvm.amdgcn.s.memtime()
store volatile i64 %cycle0, i64 addrspace(1)* %out
%cycle1 = call i64 @llvm.amdgcn.s.memtime()
store volatile i64 %cycle1, i64 addrspace(1)* %out
ret void
}
attributes #0 = { nounwind }