269 lines
16 KiB
LLVM
269 lines
16 KiB
LLVM
; RUN: llc -march=amdgcn -mtriple=amdgcn-unknown-amdhsa < %s | FileCheck -check-prefix=HSA -check-prefix=FUNC %s
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@lds.align16.0 = internal unnamed_addr addrspace(3) global [38 x i8] undef, align 16
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@lds.align16.1 = internal unnamed_addr addrspace(3) global [38 x i8] undef, align 16
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@lds.align8.0 = internal unnamed_addr addrspace(3) global [38 x i8] undef, align 8
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@lds.align32.0 = internal unnamed_addr addrspace(3) global [38 x i8] undef, align 32
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@lds.missing.align.0 = internal unnamed_addr addrspace(3) global [39 x i32] undef
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@lds.missing.align.1 = internal unnamed_addr addrspace(3) global [7 x i64] undef
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declare void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* nocapture, i8 addrspace(1)* nocapture readonly, i32, i1) #0
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declare void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* nocapture, i8 addrspace(3)* nocapture readonly, i32, i1) #0
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; HSA-LABEL: {{^}}test_no_round_size_1:
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; HSA: workgroup_group_segment_byte_size = 38
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define amdgpu_kernel void @test_no_round_size_1(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 4 %lds.align16.0.bc, i8 addrspace(1)* align 4 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 4 %out, i8 addrspace(3)* align 4 %lds.align16.0.bc, i32 38, i1 false)
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ret void
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}
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; There are two objects, so one requires padding to be correctly
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; aligned after the other.
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; (38 -> 48) + 38 = 92
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; I don't think it is necessary to add padding after since if there
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; were to be a dynamically sized LDS kernel arg, the runtime should
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; add the alignment padding if necessary alignment padding if needed.
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; HSA-LABEL: {{^}}test_round_size_2:
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; HSA: workgroup_group_segment_byte_size = 86
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_size_2(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 4 %lds.align16.0.bc, i8 addrspace(1)* align 4 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 4 %out, i8 addrspace(3)* align 4 %lds.align16.0.bc, i32 38, i1 false)
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%lds.align16.1.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.1 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 4 %lds.align16.1.bc, i8 addrspace(1)* align 4 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 4 %out, i8 addrspace(3)* align 4 %lds.align16.1.bc, i32 38, i1 false)
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ret void
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}
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; 38 + (10 pad) + 38
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; HSA-LABEL: {{^}}test_round_size_2_align_8:
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; HSA: workgroup_group_segment_byte_size = 86
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_size_2_align_8(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align16.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align16.0.bc, i32 38, i1 false)
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%lds.align8.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align8.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align8.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align8.0.bc, i32 38, i1 false)
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ret void
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}
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; HSA-LABEL: {{^}}test_round_local_lds_and_arg:
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; HSA: workgroup_group_segment_byte_size = 38
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_local_lds_and_arg(i8 addrspace(1)* %out, i8 addrspace(1)* %in, i8 addrspace(3)* %lds.arg) #1 {
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 4 %lds.align16.0.bc, i8 addrspace(1)* align 4 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 4 %out, i8 addrspace(3)* align 4 %lds.align16.0.bc, i32 38, i1 false)
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 4 %lds.arg, i8 addrspace(1)* align 4 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 4 %out, i8 addrspace(3)* align 4 %lds.arg, i32 38, i1 false)
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ret void
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}
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; HSA-LABEL: {{^}}test_round_lds_arg:
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; HSA: workgroup_group_segment_byte_size = 0
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_lds_arg(i8 addrspace(1)* %out, i8 addrspace(1)* %in, i8 addrspace(3)* %lds.arg) #1 {
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 4 %lds.arg, i8 addrspace(1)* align 4 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 4 %out, i8 addrspace(3)* align 4 %lds.arg, i32 38, i1 false)
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ret void
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}
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; FIXME: Parameter alignment not considered
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; HSA-LABEL: {{^}}test_high_align_lds_arg:
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; HSA: workgroup_group_segment_byte_size = 0
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_high_align_lds_arg(i8 addrspace(1)* %out, i8 addrspace(1)* %in, i8 addrspace(3)* align 64 %lds.arg) #1 {
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 64 %lds.arg, i8 addrspace(1)* align 64 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 64 %out, i8 addrspace(3)* align 64 %lds.arg, i32 38, i1 false)
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ret void
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}
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; (7 * 8) + (39 * 4) = 212
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; HSA-LABEL: {{^}}test_missing_alignment_size_2_order0:
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; HSA: workgroup_group_segment_byte_size = 212
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_missing_alignment_size_2_order0(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.missing.align.0.bc = bitcast [39 x i32] addrspace(3)* @lds.missing.align.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 4 %lds.missing.align.0.bc, i8 addrspace(1)* align 4 %in, i32 160, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 4 %out, i8 addrspace(3)* align 4 %lds.missing.align.0.bc, i32 160, i1 false)
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%lds.missing.align.1.bc = bitcast [7 x i64] addrspace(3)* @lds.missing.align.1 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.missing.align.1.bc, i8 addrspace(1)* align 8 %in, i32 56, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.missing.align.1.bc, i32 56, i1 false)
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ret void
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}
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; (39 * 4) + (4 pad) + (7 * 8) = 216
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; HSA-LABEL: {{^}}test_missing_alignment_size_2_order1:
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; HSA: workgroup_group_segment_byte_size = 216
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_missing_alignment_size_2_order1(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.missing.align.1.bc = bitcast [7 x i64] addrspace(3)* @lds.missing.align.1 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.missing.align.1.bc, i8 addrspace(1)* align 8 %in, i32 56, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.missing.align.1.bc, i32 56, i1 false)
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%lds.missing.align.0.bc = bitcast [39 x i32] addrspace(3)* @lds.missing.align.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 4 %lds.missing.align.0.bc, i8 addrspace(1)* align 4 %in, i32 160, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 4 %out, i8 addrspace(3)* align 4 %lds.missing.align.0.bc, i32 160, i1 false)
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ret void
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}
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; Test how the size needed for padding changes based on when the
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; global is encountered during lowering. There should be a consistent
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; order to minimize padding waste.
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;
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; The way global addresses are lowered now, this is in inverse of
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; first use order which isn't great.
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;
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; This should be the optimal order for these globals. If sorted to
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; minimize padding, the minimum possible size is: align 32, align 8,
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; align 16
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; align 32, 16, 8
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; 38 + (10 pad) + 38 + (10 pad) + 38 = 134
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; HSA-LABEL: {{^}}test_round_size_3_order0:
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; HSA: workgroup_group_segment_byte_size = 134
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_size_3_order0(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.align32.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align32.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align32.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align32.0.bc, i32 38, i1 false)
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align16.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align16.0.bc, i32 38, i1 false)
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%lds.align8.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align8.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align8.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align8.0.bc, i32 38, i1 false)
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ret void
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}
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; align 32, 8, 16
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; 38 (+ 2 pad) + 38 + (18 pad) + 38 = 134
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; HSA-LABEL: {{^}}test_round_size_3_order1:
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; HSA: workgroup_group_segment_byte_size = 134
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_size_3_order1(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.align32.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align32.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align32.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align32.0.bc, i32 38, i1 false)
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%lds.align8.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align8.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align8.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align8.0.bc, i32 38, i1 false)
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align16.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align16.0.bc, i32 38, i1 false)
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ret void
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}
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; align 16, 32, 8
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; 38 + (26 pad) + 38 + (10 pad) + 38 = 150
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; HSA-LABEL: {{^}}test_round_size_3_order2:
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; HSA: workgroup_group_segment_byte_size = 150
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_size_3_order2(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align16.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align16.0.bc, i32 38, i1 false)
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%lds.align32.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align32.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align32.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align32.0.bc, i32 38, i1 false)
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%lds.align8.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align8.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align8.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align8.0.bc, i32 38, i1 false)
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ret void
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}
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; align 16, 8, 32
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; 38 + (2 pad) + 38 + (2 pad) + 38
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; HSA-LABEL: {{^}}test_round_size_3_order3:
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; HSA: workgroup_group_segment_byte_size = 118
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_size_3_order3(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align16.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align16.0.bc, i32 38, i1 false)
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%lds.align8.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align8.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align8.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align8.0.bc, i32 38, i1 false)
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%lds.align32.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align32.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align32.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align32.0.bc, i32 38, i1 false)
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ret void
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}
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; align 8, 32, 16
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; 38 + (26 pad) + 38 + (2 pad) + 38 = 142
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; HSA-LABEL: {{^}}test_round_size_3_order4:
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; HSA: workgroup_group_segment_byte_size = 142
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_size_3_order4(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.align8.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align8.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align8.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align8.0.bc, i32 38, i1 false)
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%lds.align32.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align32.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align32.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align32.0.bc, i32 38, i1 false)
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align16.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align16.0.bc, i32 38, i1 false)
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ret void
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}
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; align 8, 16, 32
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; 38 + (10 pad) + 38 + (2 pad) + 38 = 126
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; HSA-LABEL: {{^}}test_round_size_3_order5:
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; HSA: workgroup_group_segment_byte_size = 126
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; HSA: group_segment_alignment = 4
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define amdgpu_kernel void @test_round_size_3_order5(i8 addrspace(1)* %out, i8 addrspace(1)* %in) #1 {
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%lds.align8.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align8.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align8.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align8.0.bc, i32 38, i1 false)
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%lds.align16.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align16.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align16.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align16.0.bc, i32 38, i1 false)
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%lds.align32.0.bc = bitcast [38 x i8] addrspace(3)* @lds.align32.0 to i8 addrspace(3)*
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call void @llvm.memcpy.p3i8.p1i8.i32(i8 addrspace(3)* align 8 %lds.align32.0.bc, i8 addrspace(1)* align 8 %in, i32 38, i1 false)
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call void @llvm.memcpy.p1i8.p3i8.i32(i8 addrspace(1)* align 8 %out, i8 addrspace(3)* align 8 %lds.align32.0.bc, i32 38, i1 false)
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ret void
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}
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attributes #0 = { argmemonly nounwind }
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attributes #1 = { nounwind }
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attributes #2 = { convergent nounwind }
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