mirror of
https://github.com/c64scene-ar/llvm-6502.git
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953c681473
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239657 91177308-0d34-0410-b5e6-96231b3b80d8
119 lines
4.0 KiB
LLVM
119 lines
4.0 KiB
LLVM
; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s
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; In this test both the pointer and the offset operands to the
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; BUFFER_LOAD instructions end up being stored in vgprs. This
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; requires us to add the pointer and offset together, store the
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; result in the offset operand (vaddr), and then store 0 in an
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; sgpr register pair and use that for the pointer operand
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; (low 64-bits of srsrc).
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; CHECK-LABEL: {{^}}mubuf:
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; Make sure we aren't using VGPRs for the source operand of s_mov_b64
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; CHECK-NOT: s_mov_b64 s[{{[0-9]+:[0-9]+}}], v
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; Make sure we aren't using VGPR's for the srsrc operand of BUFFER_LOAD_*
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; instructions
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; CHECK: buffer_load_ubyte v{{[0-9]+}}, v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64
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; CHECK: buffer_load_ubyte v{{[0-9]+}}, v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64
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define void @mubuf(i32 addrspace(1)* %out, i8 addrspace(1)* %in) {
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entry:
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%0 = call i32 @llvm.r600.read.tidig.x() #1
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%1 = call i32 @llvm.r600.read.tidig.y() #1
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%2 = sext i32 %0 to i64
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%3 = sext i32 %1 to i64
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br label %loop
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loop:
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%4 = phi i64 [0, %entry], [%5, %loop]
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%5 = add i64 %2, %4
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%6 = getelementptr i8, i8 addrspace(1)* %in, i64 %5
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%7 = load i8, i8 addrspace(1)* %6, align 1
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%8 = or i64 %5, 1
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%9 = getelementptr i8, i8 addrspace(1)* %in, i64 %8
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%10 = load i8, i8 addrspace(1)* %9, align 1
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%11 = add i8 %7, %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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%13 = icmp slt i64 %5, 10
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br i1 %13, label %loop, label %done
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done:
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ret void
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}
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declare i32 @llvm.r600.read.tidig.x() #1
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declare i32 @llvm.r600.read.tidig.y() #1
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attributes #1 = { nounwind readnone }
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; Test moving an SMRD instruction to the VALU
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; CHECK-LABEL: {{^}}smrd_valu:
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; CHECK: buffer_load_dword [[OUT:v[0-9]+]]
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; CHECK: buffer_store_dword [[OUT]]
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define void @smrd_valu(i32 addrspace(2)* addrspace(1)* %in, i32 %a, i32 addrspace(1)* %out) {
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entry:
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%0 = icmp ne i32 %a, 0
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br i1 %0, label %if, label %else
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if:
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%1 = load i32 addrspace(2)*, i32 addrspace(2)* addrspace(1)* %in
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br label %endif
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else:
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%2 = getelementptr i32 addrspace(2)*, i32 addrspace(2)* addrspace(1)* %in
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%3 = load i32 addrspace(2)*, i32 addrspace(2)* addrspace(1)* %2
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br label %endif
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endif:
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%4 = phi i32 addrspace(2)* [%1, %if], [%3, %else]
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%5 = getelementptr i32, i32 addrspace(2)* %4, i32 3000
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%6 = load i32, i32 addrspace(2)* %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 moving ann SMRD with an immediate offset to the VALU
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; CHECK-LABEL: {{^}}smrd_valu2:
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; CHECK: buffer_load_dword
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define void @smrd_valu2(i32 addrspace(1)* %out, [8 x i32] addrspace(2)* %in) {
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entry:
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%0 = call i32 @llvm.r600.read.tidig.x() nounwind readnone
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%1 = add i32 %0, 4
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%2 = getelementptr [8 x i32], [8 x i32] addrspace(2)* %in, i32 %0, i32 4
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%3 = load i32, i32 addrspace(2)* %2
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store i32 %3, i32 addrspace(1)* %out
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ret void
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}
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; CHECK-LABEL: {{^}}s_load_imm_v8i32:
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; CHECK: buffer_load_dwordx4
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; CHECK: buffer_load_dwordx4
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define void @s_load_imm_v8i32(<8 x i32> addrspace(1)* %out, i32 addrspace(2)* nocapture readonly %in) {
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entry:
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%tmp0 = tail call i32 @llvm.r600.read.tidig.x() #1
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%tmp1 = getelementptr inbounds i32, i32 addrspace(2)* %in, i32 %tmp0
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%tmp2 = bitcast i32 addrspace(2)* %tmp1 to <8 x i32> addrspace(2)*
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%tmp3 = load <8 x i32>, <8 x i32> addrspace(2)* %tmp2, align 4
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store <8 x i32> %tmp3, <8 x i32> addrspace(1)* %out, align 32
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ret void
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}
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; CHECK-LABEL: {{^}}s_load_imm_v16i32:
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; CHECK: buffer_load_dwordx4
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; CHECK: buffer_load_dwordx4
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; CHECK: buffer_load_dwordx4
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; CHECK: buffer_load_dwordx4
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define void @s_load_imm_v16i32(<16 x i32> addrspace(1)* %out, i32 addrspace(2)* nocapture readonly %in) {
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entry:
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%tmp0 = tail call i32 @llvm.r600.read.tidig.x() #1
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%tmp1 = getelementptr inbounds i32, i32 addrspace(2)* %in, i32 %tmp0
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%tmp2 = bitcast i32 addrspace(2)* %tmp1 to <16 x i32> addrspace(2)*
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%tmp3 = load <16 x i32>, <16 x i32> addrspace(2)* %tmp2, align 4
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store <16 x i32> %tmp3, <16 x i32> addrspace(1)* %out, align 32
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ret void
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}
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