1 ; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s 2 3 ; In this test both the pointer and the offset operands to the 4 ; BUFFER_LOAD instructions end up being stored in vgprs. This 5 ; requires us to add the pointer and offset together, store the 6 ; result in the offset operand (vaddr), and then store 0 in an 7 ; sgpr register pair and use that for the pointer operand 8 ; (low 64-bits of srsrc). 9 10 ; CHECK-LABEL: @mubuf 11 12 ; Make sure we aren't using VGPRs for the source operand of S_MOV_B64 13 ; CHECK-NOT: S_MOV_B64 s[{{[0-9]+:[0-9]+}}], v 14 15 ; Make sure we aren't using VGPR's for the srsrc operand of BUFFER_LOAD_* 16 ; instructions 17 ; CHECK: BUFFER_LOAD_UBYTE v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}] 18 ; CHECK: BUFFER_LOAD_UBYTE v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}] 19 define void @mubuf(i32 addrspace(1)* %out, i8 addrspace(1)* %in) { 20 entry: 21 %0 = call i32 @llvm.r600.read.tidig.x() #1 22 %1 = call i32 @llvm.r600.read.tidig.y() #1 23 %2 = sext i32 %0 to i64 24 %3 = sext i32 %1 to i64 25 br label %loop 26 27 loop: 28 %4 = phi i64 [0, %entry], [%5, %loop] 29 %5 = add i64 %2, %4 30 %6 = getelementptr i8 addrspace(1)* %in, i64 %5 31 %7 = load i8 addrspace(1)* %6, align 1 32 %8 = or i64 %5, 1 33 %9 = getelementptr i8 addrspace(1)* %in, i64 %8 34 %10 = load i8 addrspace(1)* %9, align 1 35 %11 = add i8 %7, %10 36 %12 = sext i8 %11 to i32 37 store i32 %12, i32 addrspace(1)* %out 38 %13 = icmp slt i64 %5, 10 39 br i1 %13, label %loop, label %done 40 41 done: 42 ret void 43 } 44 45 declare i32 @llvm.r600.read.tidig.x() #1 46 declare i32 @llvm.r600.read.tidig.y() #1 47 48 attributes #1 = { nounwind readnone } 49 50 ; Test moving an SMRD instruction to the VALU 51 52 ; CHECK-LABEL: @smrd_valu 53 ; CHECK: BUFFER_LOAD_DWORD [[OUT:v[0-9]+]] 54 ; CHECK: BUFFER_STORE_DWORD [[OUT]] 55 56 define void @smrd_valu(i32 addrspace(2)* addrspace(1)* %in, i32 %a, i32 addrspace(1)* %out) { 57 entry: 58 %0 = icmp ne i32 %a, 0 59 br i1 %0, label %if, label %else 60 61 if: 62 %1 = load i32 addrspace(2)* addrspace(1)* %in 63 br label %endif 64 65 else: 66 %2 = getelementptr i32 addrspace(2)* addrspace(1)* %in 67 %3 = load i32 addrspace(2)* addrspace(1)* %2 68 br label %endif 69 70 endif: 71 %4 = phi i32 addrspace(2)* [%1, %if], [%3, %else] 72 %5 = getelementptr i32 addrspace(2)* %4, i32 3000 73 %6 = load i32 addrspace(2)* %5 74 store i32 %6, i32 addrspace(1)* %out 75 ret void 76 } 77 78 ; Test moving ann SMRD with an immediate offset to the VALU 79 80 ; CHECK-LABEL: @smrd_valu2 81 ; CHECK: BUFFER_LOAD_DWORD 82 define void @smrd_valu2(i32 addrspace(1)* %out, [8 x i32] addrspace(2)* %in) { 83 entry: 84 %0 = call i32 @llvm.r600.read.tidig.x() nounwind readnone 85 %1 = add i32 %0, 4 86 %2 = getelementptr [8 x i32] addrspace(2)* %in, i32 %0, i32 4 87 %3 = load i32 addrspace(2)* %2 88 store i32 %3, i32 addrspace(1)* %out 89 ret void 90 } 91
