1 ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs -mattr=+load-store-opt < %s | FileCheck -check-prefix=SI --check-prefix=CHECK %s 2 ; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs -mattr=+load-store-opt < %s | FileCheck -check-prefix=CI --check-prefix=CHECK %s 3 ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs -mattr=+load-store-opt,+unsafe-ds-offset-folding < %s | FileCheck -check-prefix=CI --check-prefix=CHECK %s 4 5 declare i32 @llvm.r600.read.tidig.x() #0 6 declare void @llvm.AMDGPU.barrier.local() #1 7 8 ; Function Attrs: nounwind 9 ; CHECK-LABEL: {{^}}signed_ds_offset_addressing_loop: 10 ; CHECK: BB0_1: 11 ; CHECK: v_add_i32_e32 [[VADDR:v[0-9]+]], 12 ; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR]] 13 ; SI-DAG: v_add_i32_e32 [[VADDR4:v[0-9]+]], vcc, 4, [[VADDR]] 14 ; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR4]] 15 ; SI-DAG: v_add_i32_e32 [[VADDR0x80:v[0-9]+]], vcc, 0x80, [[VADDR]] 16 ; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR0x80]] 17 ; SI-DAG: v_add_i32_e32 [[VADDR0x84:v[0-9]+]], vcc, 0x84, [[VADDR]] 18 ; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR0x84]] 19 ; SI-DAG: v_add_i32_e32 [[VADDR0x100:v[0-9]+]], vcc, 0x100, [[VADDR]] 20 ; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR0x100]] 21 22 ; CI-DAG: ds_read2_b32 v{{\[[0-9]+:[0-9]+\]}}, [[VADDR]] offset1:1 23 ; CI-DAG: ds_read2_b32 v{{\[[0-9]+:[0-9]+\]}}, [[VADDR]] offset0:32 offset1:33 24 ; CI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR]] offset:256 25 ; CHECK: s_endpgm 26 define void @signed_ds_offset_addressing_loop(float addrspace(1)* noalias nocapture %out, float addrspace(3)* noalias nocapture readonly %lptr, i32 %n) #2 { 27 entry: 28 %x.i = tail call i32 @llvm.r600.read.tidig.x() #0 29 %mul = shl nsw i32 %x.i, 1 30 br label %for.body 31 32 for.body: ; preds = %for.body, %entry 33 %sum.03 = phi float [ 0.000000e+00, %entry ], [ %add13, %for.body ] 34 %offset.02 = phi i32 [ %mul, %entry ], [ %add14, %for.body ] 35 %k.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 36 tail call void @llvm.AMDGPU.barrier.local() #1 37 %arrayidx = getelementptr inbounds float, float addrspace(3)* %lptr, i32 %offset.02 38 %tmp = load float, float addrspace(3)* %arrayidx, align 4 39 %add1 = add nsw i32 %offset.02, 1 40 %arrayidx2 = getelementptr inbounds float, float addrspace(3)* %lptr, i32 %add1 41 %tmp1 = load float, float addrspace(3)* %arrayidx2, align 4 42 %add3 = add nsw i32 %offset.02, 32 43 %arrayidx4 = getelementptr inbounds float, float addrspace(3)* %lptr, i32 %add3 44 %tmp2 = load float, float addrspace(3)* %arrayidx4, align 4 45 %add5 = add nsw i32 %offset.02, 33 46 %arrayidx6 = getelementptr inbounds float, float addrspace(3)* %lptr, i32 %add5 47 %tmp3 = load float, float addrspace(3)* %arrayidx6, align 4 48 %add7 = add nsw i32 %offset.02, 64 49 %arrayidx8 = getelementptr inbounds float, float addrspace(3)* %lptr, i32 %add7 50 %tmp4 = load float, float addrspace(3)* %arrayidx8, align 4 51 %add9 = fadd float %tmp, %tmp1 52 %add10 = fadd float %add9, %tmp2 53 %add11 = fadd float %add10, %tmp3 54 %add12 = fadd float %add11, %tmp4 55 %add13 = fadd float %sum.03, %add12 56 %inc = add nsw i32 %k.01, 1 57 %add14 = add nsw i32 %offset.02, 97 58 %exitcond = icmp eq i32 %inc, 8 59 br i1 %exitcond, label %for.end, label %for.body 60 61 for.end: ; preds = %for.body 62 %tmp5 = sext i32 %x.i to i64 63 %arrayidx15 = getelementptr inbounds float, float addrspace(1)* %out, i64 %tmp5 64 store float %add13, float addrspace(1)* %arrayidx15, align 4 65 ret void 66 } 67 68 attributes #0 = { nounwind readnone } 69 attributes #1 = { convergent nounwind } 70 attributes #2 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 71
