| ; RUN: llc -march=amdgcn -verify-machineinstrs %s -o - | FileCheck %s |
| |
| ; CHECK-LABEL: foo |
| ; CHECK-NOT: BUFFER_LOAD_DWORDX2_OFFSET |
| ; After dead code elimination, that buffer load should be eliminated finally |
| ; after dead lane detection. |
| define amdgpu_kernel void @foo() { |
| entry: |
| switch i8 undef, label %foo.exit [ |
| i8 4, label %sw.bb4 |
| i8 10, label %sw.bb10 |
| ] |
| |
| sw.bb4: |
| %x = load i64, i64 addrspace(1)* undef, align 8 |
| %c = sitofp i64 %x to float |
| %v = insertelement <2 x float> <float undef, float 0.000000e+00>, float %c, i32 0 |
| br label %foo.exit |
| |
| sw.bb10: |
| unreachable |
| |
| foo.exit: |
| %agg = phi <2 x float> [ %v, %sw.bb4 ], [ zeroinitializer, %entry ] |
| %s = extractelement <2 x float> %agg, i32 1 |
| store float %s, float addrspace(1)* undef, align 4 |
| ret void |
| } |