| # RUN: llc -march=amdgcn -run-pass=early-machinelicm -o - %s | FileCheck %s |
| |
| # Test to check machine LICM does not hoist convergent instructions, |
| # DS_PERMUTE_B32 in this example. |
| |
| --- |
| # CHECK-LABEL: name: _amdgpu_cs_main |
| # CHECK: bb.1: |
| # CHECK: DS_PERMUTE_B32 |
| |
| name: _amdgpu_cs_main |
| body: | |
| bb.0: |
| liveins: $vgpr0, $vgpr1 |
| successors: %bb.1 |
| |
| %0:vgpr_32 = COPY $vgpr0 |
| %1:vgpr_32 = COPY $vgpr1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| %2:vgpr_32 = DS_PERMUTE_B32 %0, %1, 0, implicit $exec |
| %3:vgpr_32 = V_ADD_CO_U32_e32 %0, %2, implicit-def $vcc, implicit $exec |
| S_CBRANCH_SCC1 %bb.1, implicit undef $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| $vgpr0 = COPY %3 |
| S_ENDPGM 0 |
| |
| ... |
