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https://github.com/c64scene-ar/llvm-6502.git
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6fd1b8ee48
Alias with unnamed_addr were in a strange state. It is stored in GlobalValue, the language reference talks about "unnamed_addr aliases" but the verifier was rejecting them. It seems natural to allow unnamed_addr in aliases: * It is a property of how it is accessed, not of the data itself. * It is perfectly possible to write code that depends on the address of an alias. This patch then makes unname_addr legal for aliases. One side effect is that the syntax changes for a corner case: In globals, unnamed_addr is now printed before the address space. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210302 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.7 KiB
LLVM
51 lines
1.7 KiB
LLVM
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=EG-CHECK %s
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; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI-CHECK %s
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; RUN: llc < %s -march=r600 -mcpu=bonaire -verify-machineinstrs | FileCheck --check-prefix=CI-CHECK %s
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@local_memory.local_mem = internal unnamed_addr addrspace(3) global [128 x i32] zeroinitializer, align 4
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; EG-CHECK-LABEL: @local_memory
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; SI-CHECK-LABEL: @local_memory
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; CI-CHECK-LABEL: @local_memory
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; Check that the LDS size emitted correctly
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; EG-CHECK: .long 166120
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; EG-CHECK-NEXT: .long 128
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; SI-CHECK: .long 47180
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; SI-CHECK-NEXT: .long 65536
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; CI-CHECK: .long 47180
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; CI-CHECK-NEXT: .long 32768
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; EG-CHECK: LDS_WRITE
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; SI-CHECK-NOT: S_WQM_B64
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; SI-CHECK: DS_WRITE_B32
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; GROUP_BARRIER must be the last instruction in a clause
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; EG-CHECK: GROUP_BARRIER
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; EG-CHECK-NEXT: ALU clause
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; SI-CHECK: S_BARRIER
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; EG-CHECK: LDS_READ_RET
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; SI-CHECK: DS_READ_B32 {{v[0-9]+}},
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define void @local_memory(i32 addrspace(1)* %out) {
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entry:
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%y.i = call i32 @llvm.r600.read.tidig.x() #0
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%arrayidx = getelementptr inbounds [128 x i32] addrspace(3)* @local_memory.local_mem, i32 0, i32 %y.i
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store i32 %y.i, i32 addrspace(3)* %arrayidx, align 4
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%add = add nsw i32 %y.i, 1
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%cmp = icmp eq i32 %add, 16
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%.add = select i1 %cmp, i32 0, i32 %add
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call void @llvm.AMDGPU.barrier.local()
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%arrayidx1 = getelementptr inbounds [128 x i32] addrspace(3)* @local_memory.local_mem, i32 0, i32 %.add
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%0 = load i32 addrspace(3)* %arrayidx1, align 4
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%arrayidx2 = getelementptr inbounds i32 addrspace(1)* %out, i32 %y.i
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store i32 %0, i32 addrspace(1)* %arrayidx2, align 4
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ret void
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}
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declare i32 @llvm.r600.read.tidig.x() #0
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declare void @llvm.AMDGPU.barrier.local()
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attributes #0 = { readnone }
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