-O0 flag broken #195
Description
using AMDGPU
kernel() = (AMDGPU.trap(); nothing)
AMDGPU.@device_code_llvm wait(@roc kernel())This runs fine with default julia flags but segfaults using no optimization -O0. @device_code_llvm output is the same in both cases:
# default flags and -O0
; CompilerJob of kernel kernel() for GPUCompiler.GCNCompilerTarget
; @ /gpfs/alpine/csc359/scratch/mschanen/julia_depot_crusher/dev/AMDGPU/mwe.jl:4 within `kernel`
define amdgpu_kernel void @_Z16julia_kernel_968() local_unnamed_addr #1 {
entry:
; ┌ @ /gpfs/alpine/csc359/scratch/mschanen/julia_depot_crusher/dev/AMDGPU/src/device/llvm.jl:3 within `trap`
call void @llvm.trap()
; └
unreachable
}
This is on branch ms/julia-1.8 and
Julia Version 1.8.0-DEV.1490
Commit 94bbfd45f9 (2022-02-10 14:02 UTC)
Platform Info:
OS: Linux (x86_64-suse-linux)
CPU: AMD EPYC 7A53 64-Core Processor
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-13.0.0 (ORCJIT, znver3)
Environment:
LD_LIBRARY_PATH = /opt/rocm-4.5.0/lib64:/opt/rocm-4.5.0/lib:/opt/rocm-4.5.0/hsa/lib:/opt/rocm-4.5.0/llvm/lib:/opt/cray/pe/papi/6.0.0.12/lib64:/opt/cray/libfabric/1.13.0.0/lib64
JULIA_FOLDER = /gpfs/alpine/scratch/mschanen/csc359/julia
JULIA_AMDGPU_DISABLE_ARTIFACTS = 1
JULIA_DEPOT_PATH = /gpfs/alpine/scratch/mschanen/csc359/julia_depot_crusher
JULIA_MPI_PATH = /opt/cray/pe/mpich/8.1.12/ofi/amd/4.4
Project AMDGPU v0.2.17
Status `/gpfs/alpine/csc359/scratch/mschanen/julia_depot_crusher/dev/AMDGPU/Project.toml`
[621f4979] AbstractFFTs v1.1.0
[79e6a3ab] Adapt v3.3.3
[b99e7846] BinaryProvider v0.5.10
[fa961155] CEnum v0.4.1
[e2ba6199] ExprTools v0.1.8
[0c68f7d7] GPUArrays v8.2.1
[61eb1bfa] GPUCompiler v0.13.11
[929cbde3] LLVM v4.7.1
[1914dd2f] MacroTools v0.5.9
[ae029012] Requires v1.3.0
⌅ [efcf1570] Setfield v0.7.1
[276daf66] SpecialFunctions v2.1.2
[2696aab5] HIP_jll v4.2.0+0
[873c0968] ROCmDeviceLibs_jll v4.2.0+0
[dd59ff1a] hsa_rocr_jll v4.2.0+1
[a6151927] rocRAND_jll v4.2.0+0
[8f399da3] Libdl
[37e2e46d] LinearAlgebra
[44cfe95a] Pkg v1.8.0
[de0858da] Printf
[9a3f8284] Random
[10745b16] Statistics
Info Packages marked with ⌅ have new versions available but cannot be upgraded. To see why use `status --outdated`