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llvm-project/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.s.memrealtime.ll

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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 -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=GCN %s
declare i64 @llvm.amdgcn.s.memrealtime() #0
; GCN-LABEL: {{^}}test_s_memrealtime:
; GCN-DAG: s_memrealtime s{{\[[0-9]+:[0-9]+\]}}
; GCN-DAG: s_load_dwordx2
; GCN: lgkmcnt
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
; GCN: _store_dwordx2
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
; GCN-NOT: lgkmcnt
; GCN: s_memrealtime s{{\[[0-9]+:[0-9]+\]}}
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
; GCN: _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_memrealtime(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.memrealtime()
store volatile i64 %cycle0, i64 addrspace(1)* %out
%cycle1 = call i64 @llvm.amdgcn.s.memrealtime()
store volatile i64 %cycle1, i64 addrspace(1)* %out
ret void
}
attributes #0 = { nounwind }