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dffc572cbeaa79e080e5940de971a32ca058f981
llvm-6502/test/CodeGen/AMDGPU/private-memory.ll
Hans Wennborg dffc572cbe Merging r242434: 
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r242434 | tstellar | 2015-07-16 12:40:09 -0700 (Thu, 16 Jul 2015) | 7 lines

AMDPGU/SI: Negative offsets aren't allowed in MUBUF's vaddr operand

Reviewers: arsenm

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11226
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_37@242684 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-20 16:43:33 +00:00

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LLVM
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; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck %s -check-prefix=R600 -check-prefix=FUNC
; RUN: llc -show-mc-encoding -mattr=+promote-alloca -verify-machineinstrs -march=amdgcn -mcpu=SI < %s | FileCheck %s -check-prefix=SI-PROMOTE -check-prefix=SI -check-prefix=FUNC
; RUN: llc -show-mc-encoding -mattr=-promote-alloca -verify-machineinstrs -march=amdgcn -mcpu=SI < %s | FileCheck %s -check-prefix=SI-ALLOCA -check-prefix=SI -check-prefix=FUNC
; RUN: llc -show-mc-encoding -mattr=+promote-alloca -verify-machineinstrs -march=amdgcn -mcpu=tonga < %s | FileCheck %s -check-prefix=SI-PROMOTE -check-prefix=SI -check-prefix=FUNC
; RUN: llc -show-mc-encoding -mattr=-promote-alloca -verify-machineinstrs -march=amdgcn -mcpu=tonga < %s | FileCheck %s -check-prefix=SI-ALLOCA -check-prefix=SI -check-prefix=FUNC
declare i32 @llvm.r600.read.tidig.x() nounwind readnone
; FUNC-LABEL: {{^}}mova_same_clause:
; R600: LDS_WRITE
; R600: LDS_WRITE
; R600: LDS_READ
; R600: LDS_READ
; SI-PROMOTE: ds_write_b32
; SI-PROMOTE: ds_write_b32
; SI-PROMOTE: ds_read_b32
; SI-PROMOTE: ds_read_b32
; SI-ALLOCA: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen ; encoding: [0x00,0x10,0x70,0xe0
; SI-ALLOCA: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen ; encoding: [0x00,0x10,0x70,0xe0
define void @mova_same_clause(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in) {
entry:
%stack = alloca [5 x i32], align 4
%0 = load i32, i32 addrspace(1)* %in, align 4
%arrayidx1 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 %0
store i32 4, i32* %arrayidx1, align 4
%arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1
%1 = load i32, i32 addrspace(1)* %arrayidx2, align 4
%arrayidx3 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 %1
store i32 5, i32* %arrayidx3, align 4
%arrayidx10 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 0
%2 = load i32, i32* %arrayidx10, align 4
store i32 %2, i32 addrspace(1)* %out, align 4
%arrayidx12 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 1
%3 = load i32, i32* %arrayidx12
%arrayidx13 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 1
store i32 %3, i32 addrspace(1)* %arrayidx13
ret void
}
; This test checks that the stack offset is calculated correctly for structs.
; All register loads/stores should be optimized away, so there shouldn't be
; any MOVA instructions.
;
; XXX: This generated code has unnecessary MOVs, we should be able to optimize
; this.
; FUNC-LABEL: {{^}}multiple_structs:
; R600-NOT: MOVA_INT
; SI-NOT: v_movrel
; SI-NOT: v_movrel
%struct.point = type { i32, i32 }
define void @multiple_structs(i32 addrspace(1)* %out) {
entry:
%a = alloca %struct.point
%b = alloca %struct.point
%a.x.ptr = getelementptr %struct.point, %struct.point* %a, i32 0, i32 0
%a.y.ptr = getelementptr %struct.point, %struct.point* %a, i32 0, i32 1
%b.x.ptr = getelementptr %struct.point, %struct.point* %b, i32 0, i32 0
%b.y.ptr = getelementptr %struct.point, %struct.point* %b, i32 0, i32 1
store i32 0, i32* %a.x.ptr
store i32 1, i32* %a.y.ptr
store i32 2, i32* %b.x.ptr
store i32 3, i32* %b.y.ptr
%a.indirect.ptr = getelementptr %struct.point, %struct.point* %a, i32 0, i32 0
%b.indirect.ptr = getelementptr %struct.point, %struct.point* %b, i32 0, i32 0
%a.indirect = load i32, i32* %a.indirect.ptr
%b.indirect = load i32, i32* %b.indirect.ptr
%0 = add i32 %a.indirect, %b.indirect
store i32 %0, i32 addrspace(1)* %out
ret void
}
; Test direct access of a private array inside a loop. The private array
; loads and stores should be lowered to copies, so there shouldn't be any
; MOVA instructions.
; FUNC-LABEL: {{^}}direct_loop:
; R600-NOT: MOVA_INT
; SI-NOT: v_movrel
define void @direct_loop(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
entry:
%prv_array_const = alloca [2 x i32]
%prv_array = alloca [2 x i32]
%a = load i32, i32 addrspace(1)* %in
%b_src_ptr = getelementptr i32, i32 addrspace(1)* %in, i32 1
%b = load i32, i32 addrspace(1)* %b_src_ptr
%a_dst_ptr = getelementptr [2 x i32], [2 x i32]* %prv_array_const, i32 0, i32 0
store i32 %a, i32* %a_dst_ptr
%b_dst_ptr = getelementptr [2 x i32], [2 x i32]* %prv_array_const, i32 0, i32 1
store i32 %b, i32* %b_dst_ptr
br label %for.body
for.body:
%inc = phi i32 [0, %entry], [%count, %for.body]
%x_ptr = getelementptr [2 x i32], [2 x i32]* %prv_array_const, i32 0, i32 0
%x = load i32, i32* %x_ptr
%y_ptr = getelementptr [2 x i32], [2 x i32]* %prv_array, i32 0, i32 0
%y = load i32, i32* %y_ptr
%xy = add i32 %x, %y
store i32 %xy, i32* %y_ptr
%count = add i32 %inc, 1
%done = icmp eq i32 %count, 4095
br i1 %done, label %for.end, label %for.body
for.end:
%value_ptr = getelementptr [2 x i32], [2 x i32]* %prv_array, i32 0, i32 0
%value = load i32, i32* %value_ptr
store i32 %value, i32 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}short_array:
; R600: MOVA_INT
; SI-PROMOTE-DAG: buffer_store_short v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen ; encoding: [0x00,0x10,0x68,0xe0
; SI-PROMOTE-DAG: buffer_store_short v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen offset:2 ; encoding: [0x02,0x10,0x68,0xe0
; SI-PROMOTE: buffer_load_sshort v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}}
define void @short_array(i32 addrspace(1)* %out, i32 %index) {
entry:
%0 = alloca [2 x i16]
%1 = getelementptr [2 x i16], [2 x i16]* %0, i32 0, i32 0
%2 = getelementptr [2 x i16], [2 x i16]* %0, i32 0, i32 1
store i16 0, i16* %1
store i16 1, i16* %2
%3 = getelementptr [2 x i16], [2 x i16]* %0, i32 0, i32 %index
%4 = load i16, i16* %3
%5 = sext i16 %4 to i32
store i32 %5, i32 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}char_array:
; R600: MOVA_INT
; SI-DAG: buffer_store_byte v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen ; encoding: [0x00,0x10,0x60,0xe0
; SI-DAG: buffer_store_byte v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen offset:1 ; encoding: [0x01,0x10,0x60,0xe0
define void @char_array(i32 addrspace(1)* %out, i32 %index) {
entry:
%0 = alloca [2 x i8]
%1 = getelementptr [2 x i8], [2 x i8]* %0, i32 0, i32 0
%2 = getelementptr [2 x i8], [2 x i8]* %0, i32 0, i32 1
store i8 0, i8* %1
store i8 1, i8* %2
%3 = getelementptr [2 x i8], [2 x i8]* %0, i32 0, i32 %index
%4 = load i8, i8* %3
%5 = sext i8 %4 to i32
store i32 %5, i32 addrspace(1)* %out
ret void
}
; Make sure we don't overwrite workitem information with private memory
; FUNC-LABEL: {{^}}work_item_info:
; R600-NOT: MOV T0.X
; Additional check in case the move ends up in the last slot
; R600-NOT: MOV * TO.X
; SI-NOT: v_mov_b32_e{{(32|64)}} v0
define void @work_item_info(i32 addrspace(1)* %out, i32 %in) {
entry:
%0 = alloca [2 x i32]
%1 = getelementptr [2 x i32], [2 x i32]* %0, i32 0, i32 0
%2 = getelementptr [2 x i32], [2 x i32]* %0, i32 0, i32 1
store i32 0, i32* %1
store i32 1, i32* %2
%3 = getelementptr [2 x i32], [2 x i32]* %0, i32 0, i32 %in
%4 = load i32, i32* %3
%5 = call i32 @llvm.r600.read.tidig.x()
%6 = add i32 %4, %5
store i32 %6, i32 addrspace(1)* %out
ret void
}
; Test that two stack objects are not stored in the same register
; The second stack object should be in T3.X
; FUNC-LABEL: {{^}}no_overlap:
; R600_CHECK: MOV
; R600_CHECK: [[CHAN:[XYZW]]]+
; R600-NOT: [[CHAN]]+
; SI: v_mov_b32_e32 v3
define void @no_overlap(i32 addrspace(1)* %out, i32 %in) {
entry:
%0 = alloca [3 x i8], align 1
%1 = alloca [2 x i8], align 1
%2 = getelementptr [3 x i8], [3 x i8]* %0, i32 0, i32 0
%3 = getelementptr [3 x i8], [3 x i8]* %0, i32 0, i32 1
%4 = getelementptr [3 x i8], [3 x i8]* %0, i32 0, i32 2
%5 = getelementptr [2 x i8], [2 x i8]* %1, i32 0, i32 0
%6 = getelementptr [2 x i8], [2 x i8]* %1, i32 0, i32 1
store i8 0, i8* %2
store i8 1, i8* %3
store i8 2, i8* %4
store i8 1, i8* %5
store i8 0, i8* %6
%7 = getelementptr [3 x i8], [3 x i8]* %0, i32 0, i32 %in
%8 = getelementptr [2 x i8], [2 x i8]* %1, i32 0, i32 %in
%9 = load i8, i8* %7
%10 = load i8, i8* %8
%11 = add i8 %9, %10
%12 = sext i8 %11 to i32
store i32 %12, i32 addrspace(1)* %out
ret void
}
define void @char_array_array(i32 addrspace(1)* %out, i32 %index) {
entry:
%alloca = alloca [2 x [2 x i8]]
%gep0 = getelementptr [2 x [2 x i8]], [2 x [2 x i8]]* %alloca, i32 0, i32 0, i32 0
%gep1 = getelementptr [2 x [2 x i8]], [2 x [2 x i8]]* %alloca, i32 0, i32 0, i32 1
store i8 0, i8* %gep0
store i8 1, i8* %gep1
%gep2 = getelementptr [2 x [2 x i8]], [2 x [2 x i8]]* %alloca, i32 0, i32 0, i32 %index
%load = load i8, i8* %gep2
%sext = sext i8 %load to i32
store i32 %sext, i32 addrspace(1)* %out
ret void
}
define void @i32_array_array(i32 addrspace(1)* %out, i32 %index) {
entry:
%alloca = alloca [2 x [2 x i32]]
%gep0 = getelementptr [2 x [2 x i32]], [2 x [2 x i32]]* %alloca, i32 0, i32 0, i32 0
%gep1 = getelementptr [2 x [2 x i32]], [2 x [2 x i32]]* %alloca, i32 0, i32 0, i32 1
store i32 0, i32* %gep0
store i32 1, i32* %gep1
%gep2 = getelementptr [2 x [2 x i32]], [2 x [2 x i32]]* %alloca, i32 0, i32 0, i32 %index
%load = load i32, i32* %gep2
store i32 %load, i32 addrspace(1)* %out
ret void
}
define void @i64_array_array(i64 addrspace(1)* %out, i32 %index) {
entry:
%alloca = alloca [2 x [2 x i64]]
%gep0 = getelementptr [2 x [2 x i64]], [2 x [2 x i64]]* %alloca, i32 0, i32 0, i32 0
%gep1 = getelementptr [2 x [2 x i64]], [2 x [2 x i64]]* %alloca, i32 0, i32 0, i32 1
store i64 0, i64* %gep0
store i64 1, i64* %gep1
%gep2 = getelementptr [2 x [2 x i64]], [2 x [2 x i64]]* %alloca, i32 0, i32 0, i32 %index
%load = load i64, i64* %gep2
store i64 %load, i64 addrspace(1)* %out
ret void
}
%struct.pair32 = type { i32, i32 }
define void @struct_array_array(i32 addrspace(1)* %out, i32 %index) {
entry:
%alloca = alloca [2 x [2 x %struct.pair32]]
%gep0 = getelementptr [2 x [2 x %struct.pair32]], [2 x [2 x %struct.pair32]]* %alloca, i32 0, i32 0, i32 0, i32 1
%gep1 = getelementptr [2 x [2 x %struct.pair32]], [2 x [2 x %struct.pair32]]* %alloca, i32 0, i32 0, i32 1, i32 1
store i32 0, i32* %gep0
store i32 1, i32* %gep1
%gep2 = getelementptr [2 x [2 x %struct.pair32]], [2 x [2 x %struct.pair32]]* %alloca, i32 0, i32 0, i32 %index, i32 0
%load = load i32, i32* %gep2
store i32 %load, i32 addrspace(1)* %out
ret void
}
define void @struct_pair32_array(i32 addrspace(1)* %out, i32 %index) {
entry:
%alloca = alloca [2 x %struct.pair32]
%gep0 = getelementptr [2 x %struct.pair32], [2 x %struct.pair32]* %alloca, i32 0, i32 0, i32 1
%gep1 = getelementptr [2 x %struct.pair32], [2 x %struct.pair32]* %alloca, i32 0, i32 1, i32 0
store i32 0, i32* %gep0
store i32 1, i32* %gep1
%gep2 = getelementptr [2 x %struct.pair32], [2 x %struct.pair32]* %alloca, i32 0, i32 %index, i32 0
%load = load i32, i32* %gep2
store i32 %load, i32 addrspace(1)* %out
ret void
}
define void @select_private(i32 addrspace(1)* %out, i32 %in) nounwind {
entry:
%tmp = alloca [2 x i32]
%tmp1 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 0
%tmp2 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 1
store i32 0, i32* %tmp1
store i32 1, i32* %tmp2
%cmp = icmp eq i32 %in, 0
%sel = select i1 %cmp, i32* %tmp1, i32* %tmp2
%load = load i32, i32* %sel
store i32 %load, i32 addrspace(1)* %out
ret void
}
; AMDGPUPromoteAlloca does not know how to handle ptrtoint. When it
; finds one, it should stop trying to promote.
; FUNC-LABEL: ptrtoint:
; SI-NOT: ds_write
; SI: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen
; SI: buffer_load_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen ;
define void @ptrtoint(i32 addrspace(1)* %out, i32 %a, i32 %b) {
%alloca = alloca [16 x i32]
%tmp0 = getelementptr [16 x i32], [16 x i32]* %alloca, i32 0, i32 %a
store i32 5, i32* %tmp0
%tmp1 = ptrtoint [16 x i32]* %alloca to i32
%tmp2 = add i32 %tmp1, 5
%tmp3 = inttoptr i32 %tmp2 to i32*
%tmp4 = getelementptr i32, i32* %tmp3, i32 %b
%tmp5 = load i32, i32* %tmp4
store i32 %tmp5, i32 addrspace(1)* %out
ret void
}
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