mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-20 09:30:43 +00:00
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
60 lines
2.6 KiB
LLVM
60 lines
2.6 KiB
LLVM
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=EG-CHECK %s
|
|
; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI-CHECK %s
|
|
|
|
@local_memory_two_objects.local_mem0 = internal unnamed_addr addrspace(3) global [4 x i32] zeroinitializer, align 4
|
|
@local_memory_two_objects.local_mem1 = internal unnamed_addr addrspace(3) global [4 x i32] zeroinitializer, align 4
|
|
|
|
; EG-CHECK: @local_memory_two_objects
|
|
|
|
; Check that the LDS size emitted correctly
|
|
; EG-CHECK: .long 166120
|
|
; EG-CHECK-NEXT: .long 8
|
|
; SI-CHECK: .long 47180
|
|
; SI-CHECK-NEXT: .long 32768
|
|
|
|
; We would like to check the the lds writes are using different
|
|
; addresses, but due to variations in the scheduler, we can't do
|
|
; this consistently on evergreen GPUs.
|
|
; EG-CHECK: LDS_WRITE
|
|
; EG-CHECK: LDS_WRITE
|
|
; SI-CHECK: DS_WRITE_B32 {{v[0-9]*}}, v[[ADDRW:[0-9]*]]
|
|
; SI-CHECK-NOT: DS_WRITE_B32 {{v[0-9]*}}, v[[ADDRW]]
|
|
|
|
; GROUP_BARRIER must be the last instruction in a clause
|
|
; EG-CHECK: GROUP_BARRIER
|
|
; EG-CHECK-NEXT: ALU clause
|
|
|
|
; Make sure the lds reads are using different addresses, at different
|
|
; constant offsets.
|
|
; EG-CHECK: LDS_READ_RET {{[*]*}} OQAP, {{PV|T}}[[ADDRR:[0-9]*\.[XYZW]]]
|
|
; EG-CHECK-NOT: LDS_READ_RET {{[*]*}} OQAP, T[[ADDRR]]
|
|
; SI-CHECK: DS_READ_B32 {{v[0-9]+}}, [[ADDRR:v[0-9]+]], 0x10
|
|
; SI-CHECK: DS_READ_B32 {{v[0-9]+}}, [[ADDRR]], 0x0,
|
|
|
|
define void @local_memory_two_objects(i32 addrspace(1)* %out) {
|
|
entry:
|
|
%x.i = call i32 @llvm.r600.read.tidig.x() #0
|
|
%arrayidx = getelementptr inbounds [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem0, i32 0, i32 %x.i
|
|
store i32 %x.i, i32 addrspace(3)* %arrayidx, align 4
|
|
%mul = shl nsw i32 %x.i, 1
|
|
%arrayidx1 = getelementptr inbounds [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem1, i32 0, i32 %x.i
|
|
store i32 %mul, i32 addrspace(3)* %arrayidx1, align 4
|
|
%sub = sub nsw i32 3, %x.i
|
|
call void @llvm.AMDGPU.barrier.local()
|
|
%arrayidx2 = getelementptr inbounds [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem0, i32 0, i32 %sub
|
|
%0 = load i32 addrspace(3)* %arrayidx2, align 4
|
|
%arrayidx3 = getelementptr inbounds i32 addrspace(1)* %out, i32 %x.i
|
|
store i32 %0, i32 addrspace(1)* %arrayidx3, align 4
|
|
%arrayidx4 = getelementptr inbounds [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem1, i32 0, i32 %sub
|
|
%1 = load i32 addrspace(3)* %arrayidx4, align 4
|
|
%add = add nsw i32 %x.i, 4
|
|
%arrayidx5 = getelementptr inbounds i32 addrspace(1)* %out, i32 %add
|
|
store i32 %1, i32 addrspace(1)* %arrayidx5, align 4
|
|
ret void
|
|
}
|
|
|
|
declare i32 @llvm.r600.read.tidig.x() #0
|
|
declare void @llvm.AMDGPU.barrier.local()
|
|
|
|
attributes #0 = { readnone }
|