| # RUN: llc -mtriple=amdgcn--amdpal -run-pass=register-coalescer -o - %s | FileCheck %s | |
| # Check that this doesn't crash. Check for some legitimate output. | |
| # CHECK: S_CBRANCH_SCC1 | |
| --- | |
| name: fred | |
| tracksRegLiveness: true | |
| body: | | |
| bb.0: | |
| successors: %bb.1, %bb.2 | |
| liveins: $sgpr4 | |
| undef %0.sub2:sgpr_128 = COPY $sgpr4 | |
| %3 = IMPLICIT_DEF | |
| S_CBRANCH_SCC1 %bb.2, implicit undef $scc | |
| bb.1: | |
| successors: %bb.2 | |
| %0.sub0:sgpr_128 = COPY %0.sub2 | |
| %0.sub1:sgpr_128 = COPY %0.sub2 | |
| %1:sgpr_128 = COPY %0 | |
| %2:sgpr_128 = COPY %0 | |
| %0:sgpr_128 = COPY %2 | |
| %3:sgpr_128 = COPY %1 | |
| bb.2: | |
| $sgpr1 = COPY %3 | |
| $sgpr2 = COPY %0.sub2 | |
| ... |