mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-17 18:31:04 +00:00
1f996fa36b
This is equivalent to the AMDGPUTargetMachine now, but it is the starting point for separating R600 and GCN functionality into separate targets. It is recommened that users start using the gcn triple for GCN-based GPUs, because using the r600 triple for these GPUs will be deprecated in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225277 91177308-0d34-0410-b5e6-96231b3b80d8
312 lines
11 KiB
LLVM
312 lines
11 KiB
LLVM
; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck %s -check-prefix=R600 -check-prefix=FUNC
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; 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
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; 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
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declare i32 @llvm.r600.read.tidig.x() nounwind readnone
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; FUNC-LABEL: {{^}}mova_same_clause:
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; R600: LDS_WRITE
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; R600: LDS_WRITE
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; R600: LDS_READ
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; R600: LDS_READ
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; SI-PROMOTE: ds_write_b32
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; SI-PROMOTE: ds_write_b32
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; SI-PROMOTE: ds_read_b32
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; SI-PROMOTE: ds_read_b32
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; 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
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; 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
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define void @mova_same_clause(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in) {
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entry:
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%stack = alloca [5 x i32], align 4
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%0 = load i32 addrspace(1)* %in, align 4
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%arrayidx1 = getelementptr inbounds [5 x i32]* %stack, i32 0, i32 %0
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store i32 4, i32* %arrayidx1, align 4
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%arrayidx2 = getelementptr inbounds i32 addrspace(1)* %in, i32 1
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%1 = load i32 addrspace(1)* %arrayidx2, align 4
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%arrayidx3 = getelementptr inbounds [5 x i32]* %stack, i32 0, i32 %1
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store i32 5, i32* %arrayidx3, align 4
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%arrayidx10 = getelementptr inbounds [5 x i32]* %stack, i32 0, i32 0
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%2 = load i32* %arrayidx10, align 4
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store i32 %2, i32 addrspace(1)* %out, align 4
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%arrayidx12 = getelementptr inbounds [5 x i32]* %stack, i32 0, i32 1
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%3 = load i32* %arrayidx12
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%arrayidx13 = getelementptr inbounds i32 addrspace(1)* %out, i32 1
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store i32 %3, i32 addrspace(1)* %arrayidx13
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ret void
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}
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; This test checks that the stack offset is calculated correctly for structs.
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; All register loads/stores should be optimized away, so there shouldn't be
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; any MOVA instructions.
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;
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; XXX: This generated code has unnecessary MOVs, we should be able to optimize
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; this.
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; FUNC-LABEL: {{^}}multiple_structs:
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; R600-NOT: MOVA_INT
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; SI-NOT: v_movrel
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; SI-NOT: v_movrel
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%struct.point = type { i32, i32 }
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define void @multiple_structs(i32 addrspace(1)* %out) {
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entry:
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%a = alloca %struct.point
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%b = alloca %struct.point
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%a.x.ptr = getelementptr %struct.point* %a, i32 0, i32 0
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%a.y.ptr = getelementptr %struct.point* %a, i32 0, i32 1
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%b.x.ptr = getelementptr %struct.point* %b, i32 0, i32 0
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%b.y.ptr = getelementptr %struct.point* %b, i32 0, i32 1
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store i32 0, i32* %a.x.ptr
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store i32 1, i32* %a.y.ptr
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store i32 2, i32* %b.x.ptr
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store i32 3, i32* %b.y.ptr
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%a.indirect.ptr = getelementptr %struct.point* %a, i32 0, i32 0
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%b.indirect.ptr = getelementptr %struct.point* %b, i32 0, i32 0
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%a.indirect = load i32* %a.indirect.ptr
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%b.indirect = load i32* %b.indirect.ptr
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%0 = add i32 %a.indirect, %b.indirect
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store i32 %0, i32 addrspace(1)* %out
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ret void
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}
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; Test direct access of a private array inside a loop. The private array
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; loads and stores should be lowered to copies, so there shouldn't be any
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; MOVA instructions.
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; FUNC-LABEL: {{^}}direct_loop:
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; R600-NOT: MOVA_INT
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; SI-NOT: v_movrel
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define void @direct_loop(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
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entry:
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%prv_array_const = alloca [2 x i32]
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%prv_array = alloca [2 x i32]
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%a = load i32 addrspace(1)* %in
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%b_src_ptr = getelementptr i32 addrspace(1)* %in, i32 1
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%b = load i32 addrspace(1)* %b_src_ptr
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%a_dst_ptr = getelementptr [2 x i32]* %prv_array_const, i32 0, i32 0
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store i32 %a, i32* %a_dst_ptr
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%b_dst_ptr = getelementptr [2 x i32]* %prv_array_const, i32 0, i32 1
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store i32 %b, i32* %b_dst_ptr
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br label %for.body
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for.body:
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%inc = phi i32 [0, %entry], [%count, %for.body]
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%x_ptr = getelementptr [2 x i32]* %prv_array_const, i32 0, i32 0
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%x = load i32* %x_ptr
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%y_ptr = getelementptr [2 x i32]* %prv_array, i32 0, i32 0
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%y = load i32* %y_ptr
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%xy = add i32 %x, %y
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store i32 %xy, i32* %y_ptr
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%count = add i32 %inc, 1
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%done = icmp eq i32 %count, 4095
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br i1 %done, label %for.end, label %for.body
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for.end:
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%value_ptr = getelementptr [2 x i32]* %prv_array, i32 0, i32 0
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%value = load i32* %value_ptr
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store i32 %value, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}short_array:
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; R600: MOVA_INT
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; 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
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; 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
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; SI-PROMOTE: buffer_load_sshort v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}}
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define void @short_array(i32 addrspace(1)* %out, i32 %index) {
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entry:
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%0 = alloca [2 x i16]
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%1 = getelementptr [2 x i16]* %0, i32 0, i32 0
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%2 = getelementptr [2 x i16]* %0, i32 0, i32 1
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store i16 0, i16* %1
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store i16 1, i16* %2
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%3 = getelementptr [2 x i16]* %0, i32 0, i32 %index
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%4 = load i16* %3
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%5 = sext i16 %4 to i32
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store i32 %5, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}char_array:
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; R600: MOVA_INT
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; 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
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; 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
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define void @char_array(i32 addrspace(1)* %out, i32 %index) {
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entry:
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%0 = alloca [2 x i8]
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%1 = getelementptr [2 x i8]* %0, i32 0, i32 0
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%2 = getelementptr [2 x i8]* %0, i32 0, i32 1
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store i8 0, i8* %1
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store i8 1, i8* %2
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%3 = getelementptr [2 x i8]* %0, i32 0, i32 %index
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%4 = load i8* %3
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%5 = sext i8 %4 to i32
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store i32 %5, i32 addrspace(1)* %out
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ret void
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}
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; Make sure we don't overwrite workitem information with private memory
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; FUNC-LABEL: {{^}}work_item_info:
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; R600-NOT: MOV T0.X
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; Additional check in case the move ends up in the last slot
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; R600-NOT: MOV * TO.X
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; SI-NOT: v_mov_b32_e{{(32|64)}} v0
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define void @work_item_info(i32 addrspace(1)* %out, i32 %in) {
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entry:
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%0 = alloca [2 x i32]
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%1 = getelementptr [2 x i32]* %0, i32 0, i32 0
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%2 = getelementptr [2 x i32]* %0, i32 0, i32 1
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store i32 0, i32* %1
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store i32 1, i32* %2
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%3 = getelementptr [2 x i32]* %0, i32 0, i32 %in
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%4 = load i32* %3
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%5 = call i32 @llvm.r600.read.tidig.x()
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%6 = add i32 %4, %5
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store i32 %6, i32 addrspace(1)* %out
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ret void
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}
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; Test that two stack objects are not stored in the same register
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; The second stack object should be in T3.X
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; FUNC-LABEL: {{^}}no_overlap:
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; R600_CHECK: MOV
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; R600_CHECK: [[CHAN:[XYZW]]]+
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; R600-NOT: [[CHAN]]+
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; SI: v_mov_b32_e32 v3
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define void @no_overlap(i32 addrspace(1)* %out, i32 %in) {
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entry:
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%0 = alloca [3 x i8], align 1
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%1 = alloca [2 x i8], align 1
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%2 = getelementptr [3 x i8]* %0, i32 0, i32 0
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%3 = getelementptr [3 x i8]* %0, i32 0, i32 1
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%4 = getelementptr [3 x i8]* %0, i32 0, i32 2
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%5 = getelementptr [2 x i8]* %1, i32 0, i32 0
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%6 = getelementptr [2 x i8]* %1, i32 0, i32 1
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store i8 0, i8* %2
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store i8 1, i8* %3
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store i8 2, i8* %4
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store i8 1, i8* %5
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store i8 0, i8* %6
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%7 = getelementptr [3 x i8]* %0, i32 0, i32 %in
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%8 = getelementptr [2 x i8]* %1, i32 0, i32 %in
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%9 = load i8* %7
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%10 = load i8* %8
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%11 = add i8 %9, %10
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%12 = sext i8 %11 to i32
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store i32 %12, i32 addrspace(1)* %out
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ret void
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}
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define void @char_array_array(i32 addrspace(1)* %out, i32 %index) {
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entry:
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%alloca = alloca [2 x [2 x i8]]
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%gep0 = getelementptr [2 x [2 x i8]]* %alloca, i32 0, i32 0, i32 0
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%gep1 = getelementptr [2 x [2 x i8]]* %alloca, i32 0, i32 0, i32 1
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store i8 0, i8* %gep0
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store i8 1, i8* %gep1
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%gep2 = getelementptr [2 x [2 x i8]]* %alloca, i32 0, i32 0, i32 %index
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%load = load i8* %gep2
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%sext = sext i8 %load to i32
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store i32 %sext, i32 addrspace(1)* %out
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ret void
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}
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define void @i32_array_array(i32 addrspace(1)* %out, i32 %index) {
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entry:
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%alloca = alloca [2 x [2 x i32]]
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%gep0 = getelementptr [2 x [2 x i32]]* %alloca, i32 0, i32 0, i32 0
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%gep1 = getelementptr [2 x [2 x i32]]* %alloca, i32 0, i32 0, i32 1
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store i32 0, i32* %gep0
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store i32 1, i32* %gep1
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%gep2 = getelementptr [2 x [2 x i32]]* %alloca, i32 0, i32 0, i32 %index
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%load = load i32* %gep2
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store i32 %load, i32 addrspace(1)* %out
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ret void
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}
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define void @i64_array_array(i64 addrspace(1)* %out, i32 %index) {
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entry:
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%alloca = alloca [2 x [2 x i64]]
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%gep0 = getelementptr [2 x [2 x i64]]* %alloca, i32 0, i32 0, i32 0
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%gep1 = getelementptr [2 x [2 x i64]]* %alloca, i32 0, i32 0, i32 1
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store i64 0, i64* %gep0
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store i64 1, i64* %gep1
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%gep2 = getelementptr [2 x [2 x i64]]* %alloca, i32 0, i32 0, i32 %index
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%load = load i64* %gep2
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store i64 %load, i64 addrspace(1)* %out
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ret void
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}
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%struct.pair32 = type { i32, i32 }
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define void @struct_array_array(i32 addrspace(1)* %out, i32 %index) {
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entry:
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%alloca = alloca [2 x [2 x %struct.pair32]]
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%gep0 = getelementptr [2 x [2 x %struct.pair32]]* %alloca, i32 0, i32 0, i32 0, i32 1
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%gep1 = getelementptr [2 x [2 x %struct.pair32]]* %alloca, i32 0, i32 0, i32 1, i32 1
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store i32 0, i32* %gep0
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store i32 1, i32* %gep1
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%gep2 = getelementptr [2 x [2 x %struct.pair32]]* %alloca, i32 0, i32 0, i32 %index, i32 0
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%load = load i32* %gep2
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store i32 %load, i32 addrspace(1)* %out
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ret void
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}
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define void @struct_pair32_array(i32 addrspace(1)* %out, i32 %index) {
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entry:
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%alloca = alloca [2 x %struct.pair32]
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%gep0 = getelementptr [2 x %struct.pair32]* %alloca, i32 0, i32 0, i32 1
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%gep1 = getelementptr [2 x %struct.pair32]* %alloca, i32 0, i32 1, i32 0
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store i32 0, i32* %gep0
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store i32 1, i32* %gep1
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%gep2 = getelementptr [2 x %struct.pair32]* %alloca, i32 0, i32 %index, i32 0
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%load = load i32* %gep2
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store i32 %load, i32 addrspace(1)* %out
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ret void
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}
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define void @select_private(i32 addrspace(1)* %out, i32 %in) nounwind {
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entry:
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%tmp = alloca [2 x i32]
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%tmp1 = getelementptr [2 x i32]* %tmp, i32 0, i32 0
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%tmp2 = getelementptr [2 x i32]* %tmp, i32 0, i32 1
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store i32 0, i32* %tmp1
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store i32 1, i32* %tmp2
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%cmp = icmp eq i32 %in, 0
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%sel = select i1 %cmp, i32* %tmp1, i32* %tmp2
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%load = load i32* %sel
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store i32 %load, i32 addrspace(1)* %out
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ret void
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}
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; AMDGPUPromoteAlloca does not know how to handle ptrtoint. When it
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; finds one, it should stop trying to promote.
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; FUNC-LABEL: ptrtoint:
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; SI-NOT: ds_write
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; SI: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen
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; SI: buffer_load_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], s{{[0-9]+}} offen offset:5
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define void @ptrtoint(i32 addrspace(1)* %out, i32 %a, i32 %b) {
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%alloca = alloca [16 x i32]
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%tmp0 = getelementptr [16 x i32]* %alloca, i32 0, i32 %a
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store i32 5, i32* %tmp0
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%tmp1 = ptrtoint [16 x i32]* %alloca to i32
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%tmp2 = add i32 %tmp1, 5
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%tmp3 = inttoptr i32 %tmp2 to i32*
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%tmp4 = getelementptr i32* %tmp3, i32 %b
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%tmp5 = load i32* %tmp4
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store i32 %tmp5, i32 addrspace(1)* %out
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ret void
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}
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