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1f996fa36b
This is equivalent to the AMDGPUTargetMachine now, but it is the starting point for separating R600 and GCN functionality into separate targets. It is recommened that users start using the gcn triple for GCN-based GPUs, because using the r600 triple for these GPUs will be deprecated in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225277 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=FUNC -check-prefix=SI %s
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declare i32 @llvm.r600.read.tidig.x() #1
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; FIXME: This currently doesn't do a great job of clustering the
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; loads, which end up with extra moves between them. Right now, it
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; seems the only things areLoadsFromSameBasePtr is accomplishing is
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; ordering the loads so that the lower address loads come first.
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; FUNC-LABEL: {{^}}cluster_global_arg_loads:
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; SI-DAG: buffer_load_dword [[REG0:v[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0{{$}}
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; SI-DAG: buffer_load_dword [[REG1:v[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, 0 offset:4
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; SI: buffer_store_dword [[REG0]]
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; SI: buffer_store_dword [[REG1]]
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define void @cluster_global_arg_loads(i32 addrspace(1)* %out0, i32 addrspace(1)* %out1, i32 addrspace(1)* %ptr) #0 {
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%load0 = load i32 addrspace(1)* %ptr, align 4
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%gep = getelementptr i32 addrspace(1)* %ptr, i32 1
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%load1 = load i32 addrspace(1)* %gep, align 4
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store i32 %load0, i32 addrspace(1)* %out0, align 4
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store i32 %load1, i32 addrspace(1)* %out1, align 4
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ret void
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}
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; Test for a crach in SIInstrInfo::areLoadsFromSameBasePtr() when checking
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; an MUBUF load which does not have a vaddr operand.
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; FUNC-LABEL: {{^}}same_base_ptr_crash:
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; SI: buffer_load_dword
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; SI: buffer_load_dword
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define void @same_base_ptr_crash(i32 addrspace(1)* %out, i32 addrspace(1)* %in, i32 %offset) {
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entry:
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%out1 = getelementptr i32 addrspace(1)* %out, i32 %offset
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%tmp0 = load i32 addrspace(1)* %out
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%tmp1 = load i32 addrspace(1)* %out1
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%tmp2 = add i32 %tmp0, %tmp1
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store i32 %tmp2, i32 addrspace(1)* %out
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ret void
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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