1;RUN: llc < %s -mtriple=amdgcn -mcpu=verde -mattr=-promote-alloca -verify-machineinstrs | FileCheck %s -check-prefix=CHECK 2;RUN: llc < %s -mtriple=amdgcn -mcpu=tonga -mattr=-flat-for-global -mattr=-promote-alloca -verify-machineinstrs | FileCheck %s -check-prefix=CHECK 3 4; Allocate two stack slots of 2052 bytes each requiring a total of 4104 bytes. 5; Extracting the last element of each does not fit into the offset field of 6; MUBUF instructions, so a new base register is needed. This used to not 7; happen, leading to an assertion. 8 9; CHECK-LABEL: {{^}}main: 10; CHECK: buffer_store_dword 11; CHECK: buffer_store_dword 12; CHECK: buffer_load_dword 13; CHECK: buffer_load_dword 14define amdgpu_gs float @main(float %v1, float %v2, i32 %idx1, i32 %idx2) { 15main_body: 16 %m1 = alloca [513 x float], addrspace(5) 17 %m2 = alloca [513 x float], addrspace(5) 18 19 %gep1.store = getelementptr [513 x float], ptr addrspace(5) %m1, i32 0, i32 %idx1 20 store float %v1, ptr addrspace(5) %gep1.store 21 22 %gep2.store = getelementptr [513 x float], ptr addrspace(5) %m2, i32 0, i32 %idx2 23 store float %v2, ptr addrspace(5) %gep2.store 24 25; This used to use a base reg equal to 0. 26 %out1 = load float, ptr addrspace(5) %m1 27 28; This used to attempt to re-use the base reg at 0, generating an out-of-bounds instruction offset. 29 %gep2.load = getelementptr [513 x float], ptr addrspace(5) %m2, i32 0, i32 512 30 %out2 = load float, ptr addrspace(5) %gep2.load 31 32 %r = fadd float %out1, %out2 33 ret float %r 34} 35