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; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s
; In this test both the pointer and the offset operands to the
; BUFFER_LOAD instructions end up being stored in vgprs. This
; requires us to add the pointer and offset together, store the
; result in the offset operand (vaddr), and then store 0 in an
; sgpr register pair and use that for the pointer operand
; (low 64-bits of srsrc).
; CHECK-LABEL: @mubuf
; Make sure we aren't using VGPRs for the source operand of S_MOV_B64
; CHECK-NOT: S_MOV_B64 s[{{[0-9]+:[0-9]+}}], v
; Make sure we aren't using VGPR's for the srsrc operand of BUFFER_LOAD_*
; instructions
; CHECK: BUFFER_LOAD_UBYTE v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}]
; CHECK: BUFFER_LOAD_UBYTE v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}]
define void @mubuf(i32 addrspace(1)* %out, i8 addrspace(1)* %in) {
entry:
%0 = call i32 @llvm.r600.read.tidig.x() #1
%1 = call i32 @llvm.r600.read.tidig.y() #1
%2 = sext i32 %0 to i64
%3 = sext i32 %1 to i64
br label %loop
loop:
%4 = phi i64 [0, %entry], [%5, %loop]
%5 = add i64 %2, %4
%6 = getelementptr i8 addrspace(1)* %in, i64 %5
%7 = load i8 addrspace(1)* %6, align 1
%8 = or i64 %5, 1
%9 = getelementptr i8 addrspace(1)* %in, i64 %8
%10 = load i8 addrspace(1)* %9, align 1
%11 = add i8 %7, %10
%12 = sext i8 %11 to i32
store i32 %12, i32 addrspace(1)* %out
%13 = icmp slt i64 %5, 10
br i1 %13, label %loop, label %done
done:
ret void
}
declare i32 @llvm.r600.read.tidig.x() #1
declare i32 @llvm.r600.read.tidig.y() #1
attributes #1 = { nounwind readnone }
; Test moving an SMRD instruction to the VALU
; CHECK-LABEL: @smrd_valu
; CHECK: BUFFER_LOAD_DWORD [[OUT:v[0-9]+]]
; CHECK: BUFFER_STORE_DWORD [[OUT]]
define void @smrd_valu(i32 addrspace(2)* addrspace(1)* %in, i32 %a, i32 addrspace(1)* %out) {
entry:
%0 = icmp ne i32 %a, 0
br i1 %0, label %if, label %else
if:
%1 = load i32 addrspace(2)* addrspace(1)* %in
br label %endif
else:
%2 = getelementptr i32 addrspace(2)* addrspace(1)* %in
%3 = load i32 addrspace(2)* addrspace(1)* %2
br label %endif
endif:
%4 = phi i32 addrspace(2)* [%1, %if], [%3, %else]
%5 = getelementptr i32 addrspace(2)* %4, i32 3000
%6 = load i32 addrspace(2)* %5
store i32 %6, i32 addrspace(1)* %out
ret void
}
; Test moving ann SMRD with an immediate offset to the VALU
; CHECK-LABEL: @smrd_valu2
; CHECK: BUFFER_LOAD_DWORD
define void @smrd_valu2(i32 addrspace(1)* %out, [8 x i32] addrspace(2)* %in) {
entry:
%0 = call i32 @llvm.r600.read.tidig.x() nounwind readnone
%1 = add i32 %0, 4
%2 = getelementptr [8 x i32] addrspace(2)* %in, i32 %0, i32 4
%3 = load i32 addrspace(2)* %2
store i32 %3, i32 addrspace(1)* %out
ret void
}
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