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llvm-mirror/test/CodeGen/R600/local-memory.ll

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R600/SI: Initial local memory support Enough for the radeonsi driver to use it for calculating derivatives. Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 186012
2013-07-10 18:37:07 +02:00
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=EG-CHECK %s
R600/SI: Use -verify-machineinstrs for most tests We can't enable the verifier for tests with SI_IF and SI_ELSE, because these instructions are always followed by a COPY which copies their result to the next basic block. This violates the machine verifier's rule that non-terminators can not folow terminators. Reviewed-by: Vincent Lejeune<vljn at ovi.com> llvm-svn: 192366
2013-10-10 19:11:46 +02:00
; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI-CHECK %s
R600: Add local memory support via LDS Reviewed-by: Vincent Lejeune<vljn at ovi.com> llvm-svn: 185162
2013-06-28 17:47:08 +02:00
@local_memory.local_mem = internal addrspace(3) unnamed_addr global [16 x i32] zeroinitializer, align 4
R600/SI: Initial local memory support Enough for the radeonsi driver to use it for calculating derivatives. Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 186012
2013-07-10 18:37:07 +02:00
; EG-CHECK: @local_memory
; SI-CHECK: @local_memory
R600: Add local memory support via LDS Reviewed-by: Vincent Lejeune<vljn at ovi.com> llvm-svn: 185162
2013-06-28 17:47:08 +02:00
; Check that the LDS size emitted correctly
R600/SI: Initial local memory support Enough for the radeonsi driver to use it for calculating derivatives. Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 186012
2013-07-10 18:37:07 +02:00
; EG-CHECK: .long 166120
; EG-CHECK-NEXT: .long 16
; SI-CHECK: .long 47180
; SI-CHECK-NEXT: .long 32768
R600: Add local memory support via LDS Reviewed-by: Vincent Lejeune<vljn at ovi.com> llvm-svn: 185162
2013-06-28 17:47:08 +02:00
R600/SI: Initial local memory support Enough for the radeonsi driver to use it for calculating derivatives. Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 186012
2013-07-10 18:37:07 +02:00
; EG-CHECK: LDS_WRITE
R600/SI: Don't emit S_WQM_B64 instruction for compute shaders llvm-svn: 190077
2013-09-05 20:37:52 +02:00
; SI-CHECK_NOT: S_WQM_B64
R600/SI: Fix broken encoding of DS_WRITE_B32 The logic in SIInsertWaits::getHwCounts() only really made sense for SMRD instructions, and trying to shoehorn it into handling DS_WRITE_B32 caused it to corrupt the encoding of that by clobbering the first operand with the second one. Undo that damage and only apply the SMRD logic to that. Fixes some derivates related piglit regressions with radeonsi. Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 188558
2013-08-16 18:19:24 +02:00
; SI-CHECK: DS_WRITE_B32 0
R600: Add local memory support via LDS Reviewed-by: Vincent Lejeune<vljn at ovi.com> llvm-svn: 185162
2013-06-28 17:47:08 +02:00
; GROUP_BARRIER must be the last instruction in a clause
R600/SI: Initial local memory support Enough for the radeonsi driver to use it for calculating derivatives. Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 186012
2013-07-10 18:37:07 +02:00
; EG-CHECK: GROUP_BARRIER
; EG-CHECK-NEXT: ALU clause
; SI-CHECK: S_BARRIER
R600: Add local memory support via LDS Reviewed-by: Vincent Lejeune<vljn at ovi.com> llvm-svn: 185162
2013-06-28 17:47:08 +02:00
R600/SI: Initial local memory support Enough for the radeonsi driver to use it for calculating derivatives. Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 186012
2013-07-10 18:37:07 +02:00
; EG-CHECK: LDS_READ_RET
R600/SI: Fix broken encoding of DS_WRITE_B32 The logic in SIInsertWaits::getHwCounts() only really made sense for SMRD instructions, and trying to shoehorn it into handling DS_WRITE_B32 caused it to corrupt the encoding of that by clobbering the first operand with the second one. Undo that damage and only apply the SMRD logic to that. Fixes some derivates related piglit regressions with radeonsi. Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 188558
2013-08-16 18:19:24 +02:00
; SI-CHECK: DS_READ_B32 {{VGPR[0-9]+}}, 0
R600: Add local memory support via LDS Reviewed-by: Vincent Lejeune<vljn at ovi.com> llvm-svn: 185162
2013-06-28 17:47:08 +02:00
define void @local_memory(i32 addrspace(1)* %out) {
entry:
%y.i = call i32 @llvm.r600.read.tidig.x() #0
%arrayidx = getelementptr inbounds [16 x i32] addrspace(3)* @local_memory.local_mem, i32 0, i32 %y.i
store i32 %y.i, i32 addrspace(3)* %arrayidx, align 4
%add = add nsw i32 %y.i, 1
%cmp = icmp eq i32 %add, 16
%.add = select i1 %cmp, i32 0, i32 %add
call void @llvm.AMDGPU.barrier.local()
%arrayidx1 = getelementptr inbounds [16 x i32] addrspace(3)* @local_memory.local_mem, i32 0, i32 %.add
%0 = load i32 addrspace(3)* %arrayidx1, align 4
%arrayidx2 = getelementptr inbounds i32 addrspace(1)* %out, i32 %y.i
store i32 %0, i32 addrspace(1)* %arrayidx2, align 4
ret void
}
declare i32 @llvm.r600.read.tidig.x() #0
declare void @llvm.AMDGPU.barrier.local()
attributes #0 = { readnone }
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