| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -O0 -mtriple arm64-- -run-pass=regbankselect -verify-machineinstrs %s -o - | FileCheck %s |
| --- |
| name: unmerge |
| alignment: 2 |
| legalized: true |
| tracksRegLiveness: true |
| frameInfo: |
| maxCallFrameSize: 0 |
| body: | |
| bb.0: |
| liveins: $q0 |
| |
| ; Ensure that the dest regs have FPR since we're unmerging from a vector |
| ; CHECK-LABEL: name: unmerge |
| ; CHECK: liveins: $q0 |
| ; CHECK: [[COPY:%[0-9]+]]:fpr(<2 x s64>) = COPY $q0 |
| ; CHECK: [[UV:%[0-9]+]]:fpr(s64), [[UV1:%[0-9]+]]:fpr(s64) = G_UNMERGE_VALUES [[COPY]](<2 x s64>) |
| ; CHECK: $x0 = COPY [[UV]](s64) |
| ; CHECK: RET_ReallyLR implicit $x0 |
| %0:_(<2 x s64>) = COPY $q0 |
| %1:_(s64), %2:_(s64) = G_UNMERGE_VALUES %0(<2 x s64>) |
| $x0 = COPY %1(s64) |
| RET_ReallyLR implicit $x0 |
| |
| ... |
